From 43374bec4a2d83f6330df60d44d65e216e1b6d85 Mon Sep 17 00:00:00 2001
From: Esteban Dimitroff Hodi <esteban.dimitroff@lambdaclass.com>
Date: Wed, 7 May 2025 18:22:26 -0300
Subject: [PATCH 01/15] Added recurrent process example with async inner calls

---
 Cargo.lock                                    | 1212 ++++++++++++++++-
 Cargo.toml                                    |    2 +
 concurrency/Cargo.toml                        |    3 +-
 concurrency/src/gen_server.rs                 |   14 +-
 concurrency/src/lib.rs                        |    2 +
 concurrency/src/time.rs                       |   23 +
 examples/bank/src/server.rs                   |    4 +-
 examples/name_server/src/server.rs            |    4 +-
 examples/name_server_with_error/src/server.rs |    4 +-
 examples/updater/Cargo.toml                   |   15 +
 examples/updater/src/main.rs                  |   27 +
 examples/updater/src/messages.rs              |   11 +
 examples/updater/src/server.rs                |   77 ++
 rt/src/lib.rs                                 |    3 +-
 rt/src/tokio/mod.rs                           |    1 +
 15 files changed, 1368 insertions(+), 34 deletions(-)
 create mode 100644 concurrency/src/time.rs
 create mode 100644 examples/updater/Cargo.toml
 create mode 100644 examples/updater/src/main.rs
 create mode 100644 examples/updater/src/messages.rs
 create mode 100644 examples/updater/src/server.rs

diff --git a/Cargo.lock b/Cargo.lock
index 745550c..4d4563f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -44,7 +44,7 @@ dependencies = [
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  "object",
  "rustc-demangle",
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
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+checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
+
 [[package]]
 name = "miniz_oxide"
 version = "0.8.5"
@@ -139,8 +640,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2886843bf800fba2e3377cff24abf6379b4c4d5c6681eaf9ea5b0d15090450bd"
 dependencies = [
  "libc",
- "wasi",
- "windows-sys",
+ "wasi 0.11.0+wasi-snapshot-preview1",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -161,6 +662,23 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "native-tls"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87de3442987e9dbec73158d5c715e7ad9072fda936bb03d19d7fa10e00520f0e"
+dependencies = [
+ "libc",
+ "log",
+ "openssl",
+ "openssl-probe",
+ "openssl-sys",
+ "schannel",
+ "security-framework",
+ "security-framework-sys",
+ "tempfile",
+]
+
 [[package]]
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 version = "0.46.0"
@@ -186,6 +704,50 @@ version = "1.21.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
 
+[[package]]
+name = "openssl"
+version = "0.10.72"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fedfea7d58a1f73118430a55da6a286e7b044961736ce96a16a17068ea25e5da"
+dependencies = [
+ "bitflags 2.9.0",
+ "cfg-if",
+ "foreign-types",
+ "libc",
+ "once_cell",
+ "openssl-macros",
+ "openssl-sys",
+]
+
+[[package]]
+name = "openssl-macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
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+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d05e27ee213611ffe7d6348b942e8f942b37114c00cc03cec254295a4a17852e"
+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e145e1651e858e820e4860f7b9c5e169bc1d8ce1c86043be79fa7b7634821847"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "overload"
 version = "0.1.1"
@@ -212,15 +774,27 @@ dependencies = [
  "libc",
  "redox_syscall",
  "smallvec",
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
+[[package]]
+name = "percent-encoding"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
+
 [[package]]
 name = "pin-project-lite"
 version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3b3cff922bd51709b605d9ead9aa71031d81447142d828eb4a6eba76fe619f9b"
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
+
 [[package]]
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@@ -230,6 +804,12 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "pkg-config"
+version = "0.3.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7edddbd0b52d732b21ad9a5fab5c704c14cd949e5e9a1ec5929a24fded1b904c"
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.94"
@@ -248,13 +828,19 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
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+version = "5.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "74765f6d916ee2faa39bc8e68e4f3ed8949b48cccdac59983d287a7cb71ce9c5"
+
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b8c0c260b63a8219631167be35e6a988e9554dbd323f8bd08439c8ed1302bd1"
 dependencies = [
- "bitflags",
+ "bitflags 2.9.0",
 ]
 
 [[package]]
@@ -301,6 +887,56 @@ version = "0.8.5"
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 checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
 
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+dependencies = [
+ "base64",
+ "bytes",
+ "encoding_rs",
+ "futures-core",
+ "futures-util",
+ "h2",
+ "http",
+ "http-body",
+ "hyper",
+ "hyper-tls",
+ "ipnet",
+ "js-sys",
+ "log",
+ "mime",
+ "native-tls",
+ "once_cell",
+ "percent-encoding",
+ "pin-project-lite",
+ "rustls-pemfile",
+ "serde",
+ "serde_json",
+ "serde_urlencoded",
+ "sync_wrapper",
+ "system-configuration",
+ "tokio",
+ "tokio-native-tls",
+ "tower-service",
+ "url",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "winreg",
+]
+
+[[package]]
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+dependencies = [
+ "futures",
+ "reqwest",
+ "spawned-rt",
+ "tokio",
+]
+
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@@ -308,10 +944,120 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "windows-sys 0.59.0",
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+ "bitflags 2.9.0",
+ "core-foundation",
+ "core-foundation-sys",
+ "libc",
+ "security-framework-sys",
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+ "libc",
+]
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+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "20068b6e96dc6c9bd23e01df8827e6c7e1f2fddd43c21810382803c136b99373"
+dependencies = [
+ "itoa",
+ "memchr",
+ "ryu",
+ "serde",
+]
+
+[[package]]
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-checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
+checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
+dependencies = [
+ "form_urlencoded",
+ "itoa",
+ "ryu",
+ "serde",
+]
 
 [[package]]
 name = "sharded-slab"
@@ -322,6 +1068,12 @@ dependencies = [
  "lazy_static",
 ]
 
+[[package]]
+name = "shlex"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
+
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 version = "1.4.2"
@@ -331,6 +1083,15 @@ dependencies = [
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 ]
 
+[[package]]
+name = "slab"
+version = "0.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f92a496fb766b417c996b9c5e57daf2f7ad3b0bebe1ccfca4856390e3d3bb67"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "smallvec"
 version = "1.14.0"
@@ -344,13 +1105,14 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c970269d99b64e60ec3bd6ad27270092a5394c4e309314b18ae3fe575695fbe8"
 dependencies = [
  "libc",
- "windows-sys",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
 name = "spawned-concurrency"
 version = "0.1.0"
 dependencies = [
+ "futures",
  "spawned-rt",
  "tracing",
 ]
@@ -364,6 +1126,12 @@ dependencies = [
  "tracing-subscriber",
 ]
 
+[[package]]
+name = "stable_deref_trait"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
+
 [[package]]
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@@ -375,6 +1143,57 @@ dependencies = [
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 ]
 
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2047c6ded9c721764247e62cd3b03c09ffc529b2ba5b10ec482ae507a4a70160"
+
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+dependencies = [
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+ "quote",
+ "syn",
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+dependencies = [
+ "bitflags 1.3.2",
+ "core-foundation",
+ "system-configuration-sys",
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+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75fb188eb626b924683e3b95e3a48e63551fcfb51949de2f06a9d91dbee93c9"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7437ac7763b9b123ccf33c338a5cc1bac6f69b45a136c19bdd8a65e3916435bf"
+dependencies = [
+ "fastrand",
+ "getrandom",
+ "once_cell",
+ "rustix",
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "thread_local"
 version = "1.1.8"
@@ -385,6 +1204,16 @@ dependencies = [
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 ]
 
+[[package]]
+name = "tinystr"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9117f5d4db391c1cf6927e7bea3db74b9a1c1add8f7eda9ffd5364f40f57b82f"
+dependencies = [
+ "displaydoc",
+ "zerovec",
+]
+
 [[package]]
 name = "tokio"
 version = "1.44.1"
@@ -400,7 +1229,7 @@ dependencies = [
  "signal-hook-registry",
  "socket2",
  "tokio-macros",
- "windows-sys",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -414,6 +1243,35 @@ dependencies = [
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 ]
 
+[[package]]
+name = "tokio-native-tls"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbae76ab933c85776efabc971569dd6119c580d8f5d448769dec1764bf796ef2"
+dependencies = [
+ "native-tls",
+ "tokio",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "66a539a9ad6d5d281510d5bd368c973d636c02dbf8a67300bfb6b950696ad7df"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "pin-project-lite",
+ "tokio",
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+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+
 [[package]]
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 version = "0.1.41"
@@ -476,24 +1334,169 @@ dependencies = [
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 ]
 
+[[package]]
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+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+
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+[[package]]
+name = "updater"
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+dependencies = [
+ "futures",
+ "reqwest",
+ "spawned-concurrency",
+ "spawned-rt",
+ "tracing",
+]
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+ "cfg-if",
+ "js-sys",
+ "once_cell",
+ "wasm-bindgen",
+ "web-sys",
+]
+
+[[package]]
+name = "wasm-bindgen-macro"
+version = "0.2.100"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7fe63fc6d09ed3792bd0897b314f53de8e16568c2b3f7982f468c0bf9bd0b407"
+dependencies = [
+ "quote",
+ "wasm-bindgen-macro-support",
+]
+
+[[package]]
+name = "wasm-bindgen-macro-support"
+version = "0.2.100"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ae87ea40c9f689fc23f209965b6fb8a99ad69aeeb0231408be24920604395de"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-backend",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
+version = "0.2.100"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a05d73b933a847d6cccdda8f838a22ff101ad9bf93e33684f39c1f5f0eece3d"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "web-sys"
+version = "0.3.77"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33b6dd2ef9186f1f2072e409e99cd22a975331a6b3591b12c764e0e55c60d5d2"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -516,13 +1519,46 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows-sys"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
+dependencies = [
+ "windows-targets 0.48.5",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.52.6",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
+dependencies = [
+ "windows-targets 0.52.6",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
+dependencies = [
+ "windows_aarch64_gnullvm 0.48.5",
+ "windows_aarch64_msvc 0.48.5",
+ "windows_i686_gnu 0.48.5",
+ "windows_i686_msvc 0.48.5",
+ "windows_x86_64_gnu 0.48.5",
+ "windows_x86_64_gnullvm 0.48.5",
+ "windows_x86_64_msvc 0.48.5",
 ]
 
 [[package]]
@@ -531,28 +1567,46 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
 dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
+ "windows_aarch64_gnullvm 0.52.6",
+ "windows_aarch64_msvc 0.52.6",
+ "windows_i686_gnu 0.52.6",
  "windows_i686_gnullvm",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
+ "windows_i686_msvc 0.52.6",
+ "windows_x86_64_gnu 0.52.6",
+ "windows_x86_64_gnullvm 0.52.6",
+ "windows_x86_64_msvc 0.52.6",
 ]
 
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
+
 [[package]]
 name = "windows_aarch64_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
 
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
+
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
 
+[[package]]
+name = "windows_i686_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
+
 [[package]]
 name = "windows_i686_gnu"
 version = "0.52.6"
@@ -565,26 +1619,148 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
 
+[[package]]
+name = "windows_i686_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
+
 [[package]]
 name = "windows_i686_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
 
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
+
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
 
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
+
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
 
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
+
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
+
+[[package]]
+name = "winreg"
+version = "0.50.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "524e57b2c537c0f9b1e69f1965311ec12182b4122e45035b1508cd24d2adadb1"
+dependencies = [
+ "cfg-if",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "wit-bindgen-rt"
+version = "0.39.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6f42320e61fe2cfd34354ecb597f86f413484a798ba44a8ca1165c58d42da6c1"
+dependencies = [
+ "bitflags 2.9.0",
+]
+
+[[package]]
+name = "write16"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d1890f4022759daae28ed4fe62859b1236caebfc61ede2f63ed4e695f3f6d936"
+
+[[package]]
+name = "writeable"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e9df38ee2d2c3c5948ea468a8406ff0db0b29ae1ffde1bcf20ef305bcc95c51"
+
+[[package]]
+name = "yoke"
+version = "0.7.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "120e6aef9aa629e3d4f52dc8cc43a015c7724194c97dfaf45180d2daf2b77f40"
+dependencies = [
+ "serde",
+ "stable_deref_trait",
+ "yoke-derive",
+ "zerofrom",
+]
+
+[[package]]
+name = "yoke-derive"
+version = "0.7.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2380878cad4ac9aac1e2435f3eb4020e8374b5f13c296cb75b4620ff8e229154"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+ "synstructure",
+]
+
+[[package]]
+name = "zerofrom"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "50cc42e0333e05660c3587f3bf9d0478688e15d870fab3346451ce7f8c9fbea5"
+dependencies = [
+ "zerofrom-derive",
+]
+
+[[package]]
+name = "zerofrom-derive"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d71e5d6e06ab090c67b5e44993ec16b72dcbaabc526db883a360057678b48502"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+ "synstructure",
+]
+
+[[package]]
+name = "zerovec"
+version = "0.10.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa2b893d79df23bfb12d5461018d408ea19dfafe76c2c7ef6d4eba614f8ff079"
+dependencies = [
+ "yoke",
+ "zerofrom",
+ "zerovec-derive",
+]
+
+[[package]]
+name = "zerovec-derive"
+version = "0.10.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6eafa6dfb17584ea3e2bd6e76e0cc15ad7af12b09abdd1ca55961bed9b1063c6"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
diff --git a/Cargo.toml b/Cargo.toml
index 02379aa..76a6ca8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,9 @@ members = [
     "examples/ping_pong",
     "examples/name_server",
     "examples/name_server_with_error",
+    "examples/updater",
     "examples/bank",
+    "examples/rq",
 ]
 
 [workspace.dependencies]
diff --git a/concurrency/Cargo.toml b/concurrency/Cargo.toml
index 9739dbf..7e9f20c 100644
--- a/concurrency/Cargo.toml
+++ b/concurrency/Cargo.toml
@@ -5,4 +5,5 @@ edition = "2024"
 
 [dependencies]
 spawned-rt = { workspace = true }
-tracing = { workspace = true }
\ No newline at end of file
+tracing = { workspace = true }
+futures = "0.3.1"
\ No newline at end of file
diff --git a/concurrency/src/gen_server.rs b/concurrency/src/gen_server.rs
index 11ec651..4d84f19 100644
--- a/concurrency/src/gen_server.rs
+++ b/concurrency/src/gen_server.rs
@@ -2,9 +2,9 @@
 //! See examples/name_server for a usage example.
 use std::{
     fmt::Debug,
-    panic::{AssertUnwindSafe, catch_unwind},
+    panic::AssertUnwindSafe,
 };
-
+use futures::future::FutureExt as _;
 use spawned_rt::{self as rt, JoinHandle, mpsc, oneshot};
 
 use crate::error::GenServerError;
@@ -136,9 +136,7 @@ where
             let (keep_running, error) = match message {
                 Some(GenServerInMsg::Call { sender, message }) => {
                     let (keep_running, error, response) =
-                        match catch_unwind(AssertUnwindSafe(|| {
-                            self.handle_call(message, tx, state)
-                        })) {
+                        match AssertUnwindSafe(self.handle_call(message, tx, state)).catch_unwind().await {
                             Ok(response) => match response {
                                 CallResponse::Reply(response) => (true, None, Ok(response)),
                                 CallResponse::Stop(response) => (false, None, Ok(response)),
@@ -154,7 +152,7 @@ where
                     (keep_running, error)
                 }
                 Some(GenServerInMsg::Cast { message }) => {
-                    match catch_unwind(AssertUnwindSafe(|| self.handle_cast(message, tx, state))) {
+                    match AssertUnwindSafe(self.handle_cast(message, tx, state)).catch_unwind().await {
                         Ok(response) => match response {
                             CastResponse::NoReply => (true, None),
                             CastResponse::Stop => (false, None),
@@ -183,12 +181,12 @@ where
         message: Self::InMsg,
         tx: &mpsc::Sender<GenServerInMsg<Self>>,
         state: &mut Self::State,
-    ) -> CallResponse<Self::OutMsg>;
+    ) -> impl std::future::Future<Output = CallResponse<Self::OutMsg>> + Send;
 
     fn handle_cast(
         &mut self,
         _message: Self::InMsg,
         _tx: &mpsc::Sender<GenServerInMsg<Self>>,
         state: &mut Self::State,
-    ) -> CastResponse;
+    ) -> impl std::future::Future<Output = CastResponse> + Send;
 }
diff --git a/concurrency/src/lib.rs b/concurrency/src/lib.rs
index cae8218..ab6d8b0 100644
--- a/concurrency/src/lib.rs
+++ b/concurrency/src/lib.rs
@@ -4,7 +4,9 @@
 mod error;
 mod gen_server;
 mod process;
+mod time;
 
 pub use error::GenServerError;
 pub use gen_server::{CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg};
 pub use process::{Process, ProcessInfo, send};
+pub use time::send_after;
diff --git a/concurrency/src/time.rs b/concurrency/src/time.rs
new file mode 100644
index 0000000..de8bb12
--- /dev/null
+++ b/concurrency/src/time.rs
@@ -0,0 +1,23 @@
+use std::time::Duration;
+
+use spawned_rt::{self as rt, mpsc::Sender, JoinHandle};
+
+use crate::{GenServer, GenServerInMsg};
+
+
+
+// Sends a message after a given period to the specified GenServer. The task terminates
+// once the send has completed
+pub fn send_after<T>(
+    period: Duration,
+    tx: Sender<GenServerInMsg<T>>,
+    message: T::InMsg,
+) -> JoinHandle<()>
+where
+    T: GenServer + 'static,
+{
+    rt::spawn(async move {
+        rt::sleep(period).await;
+        let _ = tx.send(GenServerInMsg::Cast { message } );
+    })
+}
\ No newline at end of file
diff --git a/examples/bank/src/server.rs b/examples/bank/src/server.rs
index 44fe376..feab27a 100644
--- a/examples/bank/src/server.rs
+++ b/examples/bank/src/server.rs
@@ -56,7 +56,7 @@ impl GenServer for Bank {
         Self {}
     }
 
-    fn handle_call(
+    async fn handle_call(
         &mut self,
         message: InMessage,
         _tx: &Sender<BankHandleMessage>,
@@ -102,7 +102,7 @@ impl GenServer for Bank {
         }
     }
 
-    fn handle_cast(
+    async fn handle_cast(
         &mut self,
         _message: InMessage,
         _tx: &Sender<BankHandleMessage>,
diff --git a/examples/name_server/src/server.rs b/examples/name_server/src/server.rs
index 9520271..4a2671f 100644
--- a/examples/name_server/src/server.rs
+++ b/examples/name_server/src/server.rs
@@ -41,7 +41,7 @@ impl GenServer for NameServer {
         HashMap::new()
     }
 
-    fn handle_call(
+    async fn handle_call(
         &mut self,
         message: InMessage,
         _tx: &Sender<NameServerMessage>,
@@ -61,7 +61,7 @@ impl GenServer for NameServer {
         }
     }
 
-    fn handle_cast(
+    async fn handle_cast(
         &mut self,
         _message: InMessage,
         _tx: &Sender<NameServerMessage>,
diff --git a/examples/name_server_with_error/src/server.rs b/examples/name_server_with_error/src/server.rs
index 71839bb..c1dcbf5 100644
--- a/examples/name_server_with_error/src/server.rs
+++ b/examples/name_server_with_error/src/server.rs
@@ -44,7 +44,7 @@ impl GenServer for NameServer {
         NameServer {}
     }
 
-    fn handle_call(
+    async fn handle_call(
         &mut self,
         message: InMessage,
         _tx: &Sender<NameServerMessage>,
@@ -68,7 +68,7 @@ impl GenServer for NameServer {
         }
     }
 
-    fn handle_cast(
+    async fn handle_cast(
         &mut self,
         _message: InMessage,
         _tx: &Sender<NameServerMessage>,
diff --git a/examples/updater/Cargo.toml b/examples/updater/Cargo.toml
new file mode 100644
index 0000000..ad8e76a
--- /dev/null
+++ b/examples/updater/Cargo.toml
@@ -0,0 +1,15 @@
+[package]
+name = "updater"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+spawned-rt = { workspace = true }
+spawned-concurrency = { workspace = true }
+tracing = { workspace = true }
+reqwest = { version = "0.11", features = ["blocking"] }
+futures = "0.3.1"
+
+[[bin]]
+name = "updater"
+path = "src/main.rs"
\ No newline at end of file
diff --git a/examples/updater/src/main.rs b/examples/updater/src/main.rs
new file mode 100644
index 0000000..a51906b
--- /dev/null
+++ b/examples/updater/src/main.rs
@@ -0,0 +1,27 @@
+//! Example to test a recurrent gen_server.
+//!
+//! Just activates periodically and performs an http request
+//! 
+
+mod messages;
+mod server;
+
+use std::{thread, time::Duration};
+
+use messages::UpdaterOutMessage;
+use server::UpdaterServer;
+use spawned_concurrency::GenServer as _;
+use spawned_rt as rt;
+
+fn main() {
+    rt::run(async {
+        let mut update_server = UpdaterServer::start();
+
+        let result = UpdaterServer::check(&mut update_server, "ea".to_string()).await;
+        tracing::info!("Update check done: {result:?}");
+        assert_eq!(result, UpdaterOutMessage::Ok);
+
+        // giving it some time before ending
+        thread::sleep(Duration::from_secs(10));
+    })
+}
diff --git a/examples/updater/src/messages.rs b/examples/updater/src/messages.rs
new file mode 100644
index 0000000..beed32d
--- /dev/null
+++ b/examples/updater/src/messages.rs
@@ -0,0 +1,11 @@
+#[derive(Debug, Clone)]
+pub enum UpdaterInMessage {
+    Check(String),
+}
+
+#[allow(dead_code)]
+#[derive(Debug, Clone, PartialEq)]
+pub enum UpdaterOutMessage {
+    Ok,
+    Error,
+}
diff --git a/examples/updater/src/server.rs b/examples/updater/src/server.rs
new file mode 100644
index 0000000..a362c27
--- /dev/null
+++ b/examples/updater/src/server.rs
@@ -0,0 +1,77 @@
+use std::{collections::HashMap, time::Duration};
+
+use spawned_concurrency::{
+    CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg, send_after,
+};
+use spawned_rt::mpsc::Sender;
+
+use crate::messages::{UpdaterInMessage as InMessage, UpdaterOutMessage as OutMessage};
+
+type UpdateServerHandle = GenServerHandle<UpdaterServer>;
+type UpdateServerMessage = GenServerInMsg<UpdaterServer>;
+type UpdateServerState = HashMap<String, String>;
+
+pub struct UpdaterServer {}
+
+impl UpdaterServer {
+    pub async fn check(server: &mut UpdateServerHandle, url: String) -> OutMessage {
+        match server.cast(InMessage::Check(url)).await {
+            Ok(_) => OutMessage::Ok,
+            Err(_) => OutMessage::Error,
+        }
+    }
+}
+
+impl GenServer for UpdaterServer {
+    type InMsg = InMessage;
+    type OutMsg = OutMessage;
+    type Error = std::fmt::Error;
+    type State = UpdateServerState;
+
+    fn new() -> Self {
+        Self {}
+    }
+
+    fn initial_state(&self) -> Self::State {
+        HashMap::new()
+    }
+
+    async fn handle_call(
+        &mut self,
+        _message: InMessage,
+        _tx: &Sender<UpdateServerMessage>,
+        _state: &mut Self::State,
+    ) -> CallResponse<Self::OutMsg> {
+        CallResponse::Reply(OutMessage::Ok)
+    }
+
+    async fn handle_cast(
+        &mut self,
+        message: InMessage,
+        tx: &Sender<UpdateServerMessage>,
+        _state: &mut Self::State,
+    ) -> CastResponse {
+        match message {
+            Self::InMsg::Check(url) => {
+                send_after(
+                    Duration::from_millis(1000),
+                    tx.clone(),
+                    InMessage::Check("url".to_string()),
+                );
+                tracing::info!("Fetching: {url:?}");
+                let resp = req().await;
+
+                tracing::info!("Response: {resp:?}");
+
+                CastResponse::NoReply
+            }
+        }
+    }
+}
+
+async fn req() -> Result<String, reqwest::Error> {
+    reqwest::get("https://httpbin.org/ip")
+        .await?
+        .text()
+        .await
+}
diff --git a/rt/src/lib.rs b/rt/src/lib.rs
index 848ce5c..19c0126 100644
--- a/rt/src/lib.rs
+++ b/rt/src/lib.rs
@@ -16,6 +16,7 @@ use tracing_subscriber::FmtSubscriber;
 use tracing_subscriber::filter::Directive;
 
 pub use crate::tokio::mpsc;
+pub use crate::tokio::sleep;
 pub use crate::tokio::oneshot;
 pub use crate::tokio::{JoinHandle, Runtime, spawn};
 
@@ -30,7 +31,7 @@ fn init_tracing() {
     let subscriber = FmtSubscriber::builder()
         .with_env_filter(
             EnvFilter::builder()
-                .with_default_directive(Directive::from_str("trace").unwrap())
+                .with_default_directive(Directive::from_str("info").unwrap())
                 .from_env_lossy(),
         )
         .finish();
diff --git a/rt/src/tokio/mod.rs b/rt/src/tokio/mod.rs
index c68d38f..030d282 100644
--- a/rt/src/tokio/mod.rs
+++ b/rt/src/tokio/mod.rs
@@ -3,6 +3,7 @@ pub mod mpsc;
 pub mod oneshot;
 
 pub use tokio::{
+    time::sleep,
     runtime::Runtime,
     task::{JoinHandle, spawn},
 };

From 9b7bb59c6cf0ea91b3f89ad812a5375fb98fbf96 Mon Sep 17 00:00:00 2001
From: Esteban Dimitroff Hodi <esteban.dimitroff@lambdaclass.com>
Date: Wed, 7 May 2025 18:25:58 -0300
Subject: [PATCH 02/15] Added recurrent process example with async inner calls

---
 Cargo.lock | 10 ----------
 Cargo.toml |  1 -
 2 files changed, 11 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 4d4563f..ee38b85 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -927,16 +927,6 @@ dependencies = [
  "winreg",
 ]
 
-[[package]]
-name = "rq"
-version = "0.1.0"
-dependencies = [
- "futures",
- "reqwest",
- "spawned-rt",
- "tokio",
-]
-
 [[package]]
 name = "rustc-demangle"
 version = "0.1.24"
diff --git a/Cargo.toml b/Cargo.toml
index 76a6ca8..2ec1059 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,7 +6,6 @@ members = [
     "examples/name_server_with_error",
     "examples/updater",
     "examples/bank",
-    "examples/rq",
 ]
 
 [workspace.dependencies]

From 22b58fcfc4ee9de90a7c6c3c7dddf8764f3d7af3 Mon Sep 17 00:00:00 2001
From: Esteban Dimitroff Hodi <esteban.dimitroff@lambdaclass.com>
Date: Thu, 8 May 2025 17:42:20 -0300
Subject: [PATCH 03/15] Added recurrent process example forcing syncronous
 inner calls

---
 Cargo.lock              | 1177 ++++++++++++++++++++++++++++++++++++++-
 Cargo.toml              |    1 +
 concurrency/src/lib.rs  |    2 +
 concurrency/src/time.rs |   23 +
 rt/src/lib.rs           |    3 +-
 rt/src/tokio/mod.rs     |    1 +
 6 files changed, 1188 insertions(+), 19 deletions(-)
 create mode 100644 concurrency/src/time.rs

diff --git a/Cargo.lock b/Cargo.lock
index 745550c..06f7b33 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -44,7 +44,7 @@ dependencies = [
  "miniz_oxide",
  "object",
  "rustc-demangle",
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -56,30 +56,481 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "base64"
+version = "0.21.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
+
+[[package]]
+name = "bitflags"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+
 [[package]]
 name = "bitflags"
 version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5c8214115b7bf84099f1309324e63141d4c5d7cc26862f97a0a857dbefe165bd"
 
+[[package]]
+name = "bumpalo"
+version = "3.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1628fb46dfa0b37568d12e5edd512553eccf6a22a78e8bde00bb4aed84d5bdbf"
+
 [[package]]
 name = "bytes"
 version = "1.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d71b6127be86fdcfddb610f7182ac57211d4b18a3e9c82eb2d17662f2227ad6a"
 
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+checksum = "8691782945451c1c383942c4874dbe63814f61cb57ef773cda2972682b7bb3c0"
+dependencies = [
+ "shlex",
+]
+
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
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+ "libc",
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+dependencies = [
+ "equivalent",
+ "hashbrown",
+]
+
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+version = "2.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "469fb0b9cefa57e3ef31275ee7cacb78f2fdca44e4765491884a2b119d4eb130"
+
+[[package]]
+name = "itoa"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
+
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+dependencies = [
+ "once_cell",
+ "wasm-bindgen",
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+
 [[package]]
 name = "lazy_static"
 version = "1.5.0"
@@ -92,6 +543,18 @@ version = "0.2.171"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c19937216e9d3aa9956d9bb8dfc0b0c8beb6058fc4f7a4dc4d850edf86a237d6"
 
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+checksum = "cd945864f07fe9f5371a27ad7b52a172b4b499999f1d97574c9fa68373937e12"
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "241eaef5fd12c88705a01fc1066c48c4b36e0dd4377dcdc7ec3942cea7a69956"
+
 [[package]]
 name = "lock_api"
 version = "0.4.12"
@@ -123,6 +586,12 @@ version = "2.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
+[[package]]
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+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
+
 [[package]]
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 version = "0.8.5"
@@ -139,8 +608,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2886843bf800fba2e3377cff24abf6379b4c4d5c6681eaf9ea5b0d15090450bd"
 dependencies = [
  "libc",
- "wasi",
- "windows-sys",
+ "wasi 0.11.0+wasi-snapshot-preview1",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -161,6 +630,23 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "native-tls"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87de3442987e9dbec73158d5c715e7ad9072fda936bb03d19d7fa10e00520f0e"
+dependencies = [
+ "libc",
+ "log",
+ "openssl",
+ "openssl-probe",
+ "openssl-sys",
+ "schannel",
+ "security-framework",
+ "security-framework-sys",
+ "tempfile",
+]
+
 [[package]]
 name = "nu-ansi-term"
 version = "0.46.0"
@@ -186,6 +672,50 @@ version = "1.21.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
 
+[[package]]
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+version = "0.10.72"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fedfea7d58a1f73118430a55da6a286e7b044961736ce96a16a17068ea25e5da"
+dependencies = [
+ "bitflags 2.9.0",
+ "cfg-if",
+ "foreign-types",
+ "libc",
+ "once_cell",
+ "openssl-macros",
+ "openssl-sys",
+]
+
+[[package]]
+name = "openssl-macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d05e27ee213611ffe7d6348b942e8f942b37114c00cc03cec254295a4a17852e"
+
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+checksum = "e145e1651e858e820e4860f7b9c5e169bc1d8ce1c86043be79fa7b7634821847"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "overload"
 version = "0.1.1"
@@ -212,15 +742,27 @@ dependencies = [
  "libc",
  "redox_syscall",
  "smallvec",
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
+[[package]]
+name = "percent-encoding"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
+
 [[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3b3cff922bd51709b605d9ead9aa71031d81447142d828eb4a6eba76fe619f9b"
 
+[[package]]
+name = "pin-utils"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
+
 [[package]]
 name = "ping_pong"
 version = "0.1.0"
@@ -230,6 +772,21 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
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+version = "0.3.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7edddbd0b52d732b21ad9a5fab5c704c14cd949e5e9a1ec5929a24fded1b904c"
+
+[[package]]
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+checksum = "e5a7c30837279ca13e7c867e9e40053bc68740f988cb07f7ca6df43cc734b585"
+dependencies = [
+ "zerovec",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.94"
@@ -248,13 +805,19 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
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+version = "5.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "74765f6d916ee2faa39bc8e68e4f3ed8949b48cccdac59983d287a7cb71ce9c5"
+
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 checksum = "0b8c0c260b63a8219631167be35e6a988e9554dbd323f8bd08439c8ed1302bd1"
 dependencies = [
- "bitflags",
+ "bitflags 2.9.0",
 ]
 
 [[package]]
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 checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
 
+[[package]]
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+dependencies = [
+ "base64",
+ "bytes",
+ "encoding_rs",
+ "futures-core",
+ "futures-util",
+ "h2",
+ "http",
+ "http-body",
+ "hyper",
+ "hyper-tls",
+ "ipnet",
+ "js-sys",
+ "log",
+ "mime",
+ "native-tls",
+ "once_cell",
+ "percent-encoding",
+ "pin-project-lite",
+ "rustls-pemfile",
+ "serde",
+ "serde_json",
+ "serde_urlencoded",
+ "sync_wrapper",
+ "system-configuration",
+ "tokio",
+ "tokio-native-tls",
+ "tower-service",
+ "url",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "winreg",
+]
+
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 name = "rustc-demangle"
 version = "0.1.24"
@@ -308,10 +911,120 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "719b953e2095829ee67db738b3bfa9fa368c94900df327b3f07fe6e794d2fe1f"
 
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+dependencies = [
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+ "errno",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys 0.52.0",
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+dependencies = [
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+ "bitflags 2.9.0",
+ "core-foundation",
+ "core-foundation-sys",
+ "libc",
+ "security-framework-sys",
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+dependencies = [
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+ "libc",
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+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
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+
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+checksum = "20068b6e96dc6c9bd23e01df8827e6c7e1f2fddd43c21810382803c136b99373"
+dependencies = [
+ "itoa",
+ "memchr",
+ "ryu",
+ "serde",
+]
+
+[[package]]
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-checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
+checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
+dependencies = [
+ "form_urlencoded",
+ "itoa",
+ "ryu",
+ "serde",
+]
 
 [[package]]
 name = "sharded-slab"
@@ -322,6 +1035,12 @@ dependencies = [
  "lazy_static",
 ]
 
+[[package]]
+name = "shlex"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
+
 [[package]]
 name = "signal-hook-registry"
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@@ -331,6 +1050,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "slab"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f92a496fb766b417c996b9c5e57daf2f7ad3b0bebe1ccfca4856390e3d3bb67"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "smallvec"
 version = "1.14.0"
@@ -344,7 +1072,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c970269d99b64e60ec3bd6ad27270092a5394c4e309314b18ae3fe575695fbe8"
 dependencies = [
  "libc",
- "windows-sys",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -364,6 +1092,12 @@ dependencies = [
  "tracing-subscriber",
 ]
 
+[[package]]
+name = "stable_deref_trait"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
+
 [[package]]
 name = "syn"
 version = "2.0.100"
@@ -375,6 +1109,57 @@ dependencies = [
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 ]
 
+[[package]]
+name = "sync_wrapper"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2047c6ded9c721764247e62cd3b03c09ffc529b2ba5b10ec482ae507a4a70160"
+
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+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba3a3adc5c275d719af8cb4272ea1c4a6d668a777f37e115f6d11ddbc1c8e0e7"
+dependencies = [
+ "bitflags 1.3.2",
+ "core-foundation",
+ "system-configuration-sys",
+]
+
+[[package]]
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+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75fb188eb626b924683e3b95e3a48e63551fcfb51949de2f06a9d91dbee93c9"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7437ac7763b9b123ccf33c338a5cc1bac6f69b45a136c19bdd8a65e3916435bf"
+dependencies = [
+ "fastrand",
+ "getrandom",
+ "once_cell",
+ "rustix",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "thread_local"
 version = "1.1.8"
@@ -385,6 +1170,16 @@ dependencies = [
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 ]
 
+[[package]]
+name = "tinystr"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d4f6d1145dcb577acf783d4e601bc1d76a13337bb54e6233add580b07344c8b"
+dependencies = [
+ "displaydoc",
+ "zerovec",
+]
+
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 version = "1.44.1"
@@ -400,7 +1195,7 @@ dependencies = [
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  "socket2",
  "tokio-macros",
- "windows-sys",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -414,6 +1209,35 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "tokio-native-tls"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbae76ab933c85776efabc971569dd6119c580d8f5d448769dec1764bf796ef2"
+dependencies = [
+ "native-tls",
+ "tokio",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "66a539a9ad6d5d281510d5bd368c973d636c02dbf8a67300bfb6b950696ad7df"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "pin-project-lite",
+ "tokio",
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+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+
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@@ -476,24 +1300,163 @@ dependencies = [
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 ]
 
+[[package]]
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+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
+
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+[[package]]
+name = "updater"
+version = "0.1.0"
+dependencies = [
+ "futures",
+ "reqwest",
+ "spawned-concurrency",
+ "spawned-rt",
+ "tracing",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+dependencies = [
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+ "idna",
+ "percent-encoding",
+]
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+dependencies = [
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+]
+
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+dependencies = [
+ "cfg-if",
+ "once_cell",
+ "rustversion",
+ "wasm-bindgen-macro",
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+version = "0.2.100"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2f0a0651a5c2bc21487bde11ee802ccaf4c51935d0d3d42a6101f98161700bc6"
+dependencies = [
+ "bumpalo",
+ "log",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-futures"
+version = "0.4.50"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "555d470ec0bc3bb57890405e5d4322cc9ea83cebb085523ced7be4144dac1e61"
+dependencies = [
+ "cfg-if",
+ "js-sys",
+ "once_cell",
+ "wasm-bindgen",
+ "web-sys",
+]
+
+[[package]]
+name = "wasm-bindgen-macro"
+version = "0.2.100"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7fe63fc6d09ed3792bd0897b314f53de8e16568c2b3f7982f468c0bf9bd0b407"
+dependencies = [
+ "quote",
+ "wasm-bindgen-macro-support",
+]
+
+[[package]]
+name = "wasm-bindgen-macro-support"
+version = "0.2.100"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ae87ea40c9f689fc23f209965b6fb8a99ad69aeeb0231408be24920604395de"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-backend",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
+version = "0.2.100"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a05d73b933a847d6cccdda8f838a22ff101ad9bf93e33684f39c1f5f0eece3d"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "web-sys"
+version = "0.3.77"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33b6dd2ef9186f1f2072e409e99cd22a975331a6b3591b12c764e0e55c60d5d2"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -516,13 +1479,46 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows-sys"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
+dependencies = [
+ "windows-targets 0.48.5",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
 dependencies = [
- "windows-targets",
+ "windows-targets 0.52.6",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.59.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
+dependencies = [
+ "windows-targets 0.52.6",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
+dependencies = [
+ "windows_aarch64_gnullvm 0.48.5",
+ "windows_aarch64_msvc 0.48.5",
+ "windows_i686_gnu 0.48.5",
+ "windows_i686_msvc 0.48.5",
+ "windows_x86_64_gnu 0.48.5",
+ "windows_x86_64_gnullvm 0.48.5",
+ "windows_x86_64_msvc 0.48.5",
 ]
 
 [[package]]
@@ -531,28 +1527,46 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
 dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
+ "windows_aarch64_gnullvm 0.52.6",
+ "windows_aarch64_msvc 0.52.6",
+ "windows_i686_gnu 0.52.6",
  "windows_i686_gnullvm",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
+ "windows_i686_msvc 0.52.6",
+ "windows_x86_64_gnu 0.52.6",
+ "windows_x86_64_gnullvm 0.52.6",
+ "windows_x86_64_msvc 0.52.6",
 ]
 
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
+
 [[package]]
 name = "windows_aarch64_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
 
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
+
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
 
+[[package]]
+name = "windows_i686_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
+
 [[package]]
 name = "windows_i686_gnu"
 version = "0.52.6"
@@ -565,26 +1579,153 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
 
+[[package]]
+name = "windows_i686_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
+
 [[package]]
 name = "windows_i686_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
 
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
+
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
 
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
+
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
 
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
+
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
+
+[[package]]
+name = "winreg"
+version = "0.50.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "524e57b2c537c0f9b1e69f1965311ec12182b4122e45035b1508cd24d2adadb1"
+dependencies = [
+ "cfg-if",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "wit-bindgen-rt"
+version = "0.39.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6f42320e61fe2cfd34354ecb597f86f413484a798ba44a8ca1165c58d42da6c1"
+dependencies = [
+ "bitflags 2.9.0",
+]
+
+[[package]]
+name = "writeable"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ea2f10b9bb0928dfb1b42b65e1f9e36f7f54dbdf08457afefb38afcdec4fa2bb"
+
+[[package]]
+name = "yoke"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5f41bb01b8226ef4bfd589436a297c53d118f65921786300e427be8d487695cc"
+dependencies = [
+ "serde",
+ "stable_deref_trait",
+ "yoke-derive",
+ "zerofrom",
+]
+
+[[package]]
+name = "yoke-derive"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "38da3c9736e16c5d3c8c597a9aaa5d1fa565d0532ae05e27c24aa62fb32c0ab6"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+ "synstructure",
+]
+
+[[package]]
+name = "zerofrom"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "50cc42e0333e05660c3587f3bf9d0478688e15d870fab3346451ce7f8c9fbea5"
+dependencies = [
+ "zerofrom-derive",
+]
+
+[[package]]
+name = "zerofrom-derive"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d71e5d6e06ab090c67b5e44993ec16b72dcbaabc526db883a360057678b48502"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+ "synstructure",
+]
+
+[[package]]
+name = "zerotrie"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "36f0bbd478583f79edad978b407914f61b2972f5af6fa089686016be8f9af595"
+dependencies = [
+ "displaydoc",
+ "yoke",
+ "zerofrom",
+]
+
+[[package]]
+name = "zerovec"
+version = "0.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a05eb080e015ba39cc9e23bbe5e7fb04d5fb040350f99f34e338d5fdd294428"
+dependencies = [
+ "yoke",
+ "zerofrom",
+ "zerovec-derive",
+]
+
+[[package]]
+name = "zerovec-derive"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b96237efa0c878c64bd89c436f661be4e46b2f3eff1ebb976f7ef2321d2f58f"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
diff --git a/Cargo.toml b/Cargo.toml
index 02379aa..1901a5c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,6 +5,7 @@ members = [
     "examples/name_server",
     "examples/name_server_with_error",
     "examples/bank",
+    "examples/updater",
 ]
 
 [workspace.dependencies]
diff --git a/concurrency/src/lib.rs b/concurrency/src/lib.rs
index cae8218..ab6d8b0 100644
--- a/concurrency/src/lib.rs
+++ b/concurrency/src/lib.rs
@@ -4,7 +4,9 @@
 mod error;
 mod gen_server;
 mod process;
+mod time;
 
 pub use error::GenServerError;
 pub use gen_server::{CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg};
 pub use process::{Process, ProcessInfo, send};
+pub use time::send_after;
diff --git a/concurrency/src/time.rs b/concurrency/src/time.rs
new file mode 100644
index 0000000..de8bb12
--- /dev/null
+++ b/concurrency/src/time.rs
@@ -0,0 +1,23 @@
+use std::time::Duration;
+
+use spawned_rt::{self as rt, mpsc::Sender, JoinHandle};
+
+use crate::{GenServer, GenServerInMsg};
+
+
+
+// Sends a message after a given period to the specified GenServer. The task terminates
+// once the send has completed
+pub fn send_after<T>(
+    period: Duration,
+    tx: Sender<GenServerInMsg<T>>,
+    message: T::InMsg,
+) -> JoinHandle<()>
+where
+    T: GenServer + 'static,
+{
+    rt::spawn(async move {
+        rt::sleep(period).await;
+        let _ = tx.send(GenServerInMsg::Cast { message } );
+    })
+}
\ No newline at end of file
diff --git a/rt/src/lib.rs b/rt/src/lib.rs
index 848ce5c..19c0126 100644
--- a/rt/src/lib.rs
+++ b/rt/src/lib.rs
@@ -16,6 +16,7 @@ use tracing_subscriber::FmtSubscriber;
 use tracing_subscriber::filter::Directive;
 
 pub use crate::tokio::mpsc;
+pub use crate::tokio::sleep;
 pub use crate::tokio::oneshot;
 pub use crate::tokio::{JoinHandle, Runtime, spawn};
 
@@ -30,7 +31,7 @@ fn init_tracing() {
     let subscriber = FmtSubscriber::builder()
         .with_env_filter(
             EnvFilter::builder()
-                .with_default_directive(Directive::from_str("trace").unwrap())
+                .with_default_directive(Directive::from_str("info").unwrap())
                 .from_env_lossy(),
         )
         .finish();
diff --git a/rt/src/tokio/mod.rs b/rt/src/tokio/mod.rs
index c68d38f..030d282 100644
--- a/rt/src/tokio/mod.rs
+++ b/rt/src/tokio/mod.rs
@@ -3,6 +3,7 @@ pub mod mpsc;
 pub mod oneshot;
 
 pub use tokio::{
+    time::sleep,
     runtime::Runtime,
     task::{JoinHandle, spawn},
 };

From 34576a2693aab0a197ccc6d40cf9d34b17f17ab4 Mon Sep 17 00:00:00 2001
From: Esteban Dimitroff Hodi <esteban.dimitroff@lambdaclass.com>
Date: Thu, 8 May 2025 17:42:36 -0300
Subject: [PATCH 04/15] Added recurrent process example forcing syncronous
 inner calls

---
 examples/updater/Cargo.toml      | 15 +++++++
 examples/updater/src/main.rs     | 27 +++++++++++
 examples/updater/src/messages.rs | 11 +++++
 examples/updater/src/server.rs   | 77 ++++++++++++++++++++++++++++++++
 4 files changed, 130 insertions(+)
 create mode 100644 examples/updater/Cargo.toml
 create mode 100644 examples/updater/src/main.rs
 create mode 100644 examples/updater/src/messages.rs
 create mode 100644 examples/updater/src/server.rs

diff --git a/examples/updater/Cargo.toml b/examples/updater/Cargo.toml
new file mode 100644
index 0000000..ad8e76a
--- /dev/null
+++ b/examples/updater/Cargo.toml
@@ -0,0 +1,15 @@
+[package]
+name = "updater"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+spawned-rt = { workspace = true }
+spawned-concurrency = { workspace = true }
+tracing = { workspace = true }
+reqwest = { version = "0.11", features = ["blocking"] }
+futures = "0.3.1"
+
+[[bin]]
+name = "updater"
+path = "src/main.rs"
\ No newline at end of file
diff --git a/examples/updater/src/main.rs b/examples/updater/src/main.rs
new file mode 100644
index 0000000..a51906b
--- /dev/null
+++ b/examples/updater/src/main.rs
@@ -0,0 +1,27 @@
+//! Example to test a recurrent gen_server.
+//!
+//! Just activates periodically and performs an http request
+//! 
+
+mod messages;
+mod server;
+
+use std::{thread, time::Duration};
+
+use messages::UpdaterOutMessage;
+use server::UpdaterServer;
+use spawned_concurrency::GenServer as _;
+use spawned_rt as rt;
+
+fn main() {
+    rt::run(async {
+        let mut update_server = UpdaterServer::start();
+
+        let result = UpdaterServer::check(&mut update_server, "ea".to_string()).await;
+        tracing::info!("Update check done: {result:?}");
+        assert_eq!(result, UpdaterOutMessage::Ok);
+
+        // giving it some time before ending
+        thread::sleep(Duration::from_secs(10));
+    })
+}
diff --git a/examples/updater/src/messages.rs b/examples/updater/src/messages.rs
new file mode 100644
index 0000000..beed32d
--- /dev/null
+++ b/examples/updater/src/messages.rs
@@ -0,0 +1,11 @@
+#[derive(Debug, Clone)]
+pub enum UpdaterInMessage {
+    Check(String),
+}
+
+#[allow(dead_code)]
+#[derive(Debug, Clone, PartialEq)]
+pub enum UpdaterOutMessage {
+    Ok,
+    Error,
+}
diff --git a/examples/updater/src/server.rs b/examples/updater/src/server.rs
new file mode 100644
index 0000000..4bb907b
--- /dev/null
+++ b/examples/updater/src/server.rs
@@ -0,0 +1,77 @@
+use std::{collections::HashMap, time::Duration};
+
+use spawned_concurrency::{
+    CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg, send_after,
+};
+use spawned_rt::mpsc::Sender;
+
+use crate::messages::{UpdaterInMessage as InMessage, UpdaterOutMessage as OutMessage};
+
+type UpdateServerHandle = GenServerHandle<UpdaterServer>;
+type UpdateServerMessage = GenServerInMsg<UpdaterServer>;
+type UpdateServerState = HashMap<String, String>;
+
+pub struct UpdaterServer {}
+
+impl UpdaterServer {
+    pub async fn check(server: &mut UpdateServerHandle, url: String) -> OutMessage {
+        match server.cast(InMessage::Check(url)).await {
+            Ok(_) => OutMessage::Ok,
+            Err(_) => OutMessage::Error,
+        }
+    }
+}
+
+impl GenServer for UpdaterServer {
+    type InMsg = InMessage;
+    type OutMsg = OutMessage;
+    type Error = std::fmt::Error;
+    type State = UpdateServerState;
+
+    fn new() -> Self {
+        Self {}
+    }
+
+    fn initial_state(&self) -> Self::State {
+        HashMap::new()
+    }
+
+    fn handle_call(
+        &mut self,
+        _message: InMessage,
+        _tx: &Sender<UpdateServerMessage>,
+        _state: &mut Self::State,
+    ) -> CallResponse<Self::OutMsg> {
+        CallResponse::Reply(OutMessage::Ok)
+    }
+
+    fn handle_cast(
+        &mut self,
+        message: InMessage,
+        tx: &Sender<UpdateServerMessage>,
+        _state: &mut Self::State,
+    ) -> CastResponse {
+        match message {
+            Self::InMsg::Check(url) => {
+                send_after(
+                    Duration::from_millis(1000),
+                    tx.clone(),
+                    InMessage::Check("url".to_string()),
+                );
+                tracing::info!("Fetching: {url:?}");
+                let resp = futures::executor::block_on(req());
+
+                tracing::info!("Response: {resp:?}");
+
+                CastResponse::NoReply
+            }
+        }
+    }
+}
+
+async fn req() -> Result<String, reqwest::Error> {
+    reqwest::get("https://httpbin.org/ip")
+        .await?
+        .text()
+        .await
+}

From 12bbe1eb369cd0ca7227f2e79a3c4c381ef89da9 Mon Sep 17 00:00:00 2001
From: Esteban Dimitroff Hodi <esteban.dimitroff@lambdaclass.com>
Date: Wed, 14 May 2025 12:35:31 -0300
Subject: [PATCH 05/15] WIP: refactoring to get sync and async beheaviors

---
 Cargo.lock                                | 1269 ++-------------------
 Cargo.toml                                |    5 +-
 concurrency/src/async/error.rs            |   11 +
 concurrency/src/{ => async}/gen_server.rs |    4 +-
 concurrency/src/async/mod.rs              |    7 +
 concurrency/src/{ => async}/process.rs    |    2 +-
 concurrency/src/{ => async}/time.rs       |    2 +-
 concurrency/src/error.rs                  |   11 -
 concurrency/src/lib.rs                    |   13 +-
 examples/bank-sync/Cargo.toml             |   13 +
 examples/bank-sync/src/main.rs            |   90 ++
 examples/bank-sync/src/messages.rs        |   25 +
 examples/bank-sync/src/server.rs          |  113 ++
 examples/bank/src/main.rs                 |    2 +-
 examples/ping_pong/Cargo.toml             |    2 +-
 examples/updater/src/server.rs            |    3 +-
 rt/Cargo.toml                             |    1 +
 rt/src/async/mod.rs                       |   24 +
 rt/src/{ => async}/tokio/mod.rs           |    4 +-
 rt/src/{ => async}/tokio/mpsc.rs          |    0
 rt/src/{ => async}/tokio/oneshot.rs       |    0
 rt/src/lib.rs                             |   36 +-
 rt/src/sync/mod.rs                        |   15 +
 rt/src/sync/mpsc.rs                       |    5 +
 rt/src/sync/oneshot.rs                    |    3 +
 rt/src/tracing/mod.rs                     |   19 +
 26 files changed, 451 insertions(+), 1228 deletions(-)
 create mode 100644 concurrency/src/async/error.rs
 rename concurrency/src/{ => async}/gen_server.rs (98%)
 create mode 100644 concurrency/src/async/mod.rs
 rename concurrency/src/{ => async}/process.rs (97%)
 rename concurrency/src/{ => async}/time.rs (87%)
 delete mode 100644 concurrency/src/error.rs
 create mode 100644 examples/bank-sync/Cargo.toml
 create mode 100644 examples/bank-sync/src/main.rs
 create mode 100644 examples/bank-sync/src/messages.rs
 create mode 100644 examples/bank-sync/src/server.rs
 create mode 100644 rt/src/async/mod.rs
 rename rt/src/{ => async}/tokio/mod.rs (64%)
 rename rt/src/{ => async}/tokio/mpsc.rs (100%)
 rename rt/src/{ => async}/tokio/oneshot.rs (100%)
 create mode 100644 rt/src/sync/mod.rs
 create mode 100644 rt/src/sync/mpsc.rs
 create mode 100644 rt/src/sync/oneshot.rs
 create mode 100644 rt/src/tracing/mod.rs

diff --git a/Cargo.lock b/Cargo.lock
index 06f7b33..0aab1fd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -34,17 +34,17 @@ checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
 
 [[package]]
 name = "backtrace"
-version = "0.3.74"
+version = "0.3.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d82cb332cdfaed17ae235a638438ac4d4839913cc2af585c3c6746e8f8bee1a"
+checksum = "6806a6321ec58106fea15becdad98371e28d92ccbc7c8f1b3b6dd724fe8f1002"
 dependencies = [
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- "cfg-if",
+ "cfg-if 1.0.0",
  "libc",
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  "object",
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- "windows-targets 0.52.6",
+ "windows-targets",
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 [[package]]
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+dependencies = [
+ "spawned-concurrency",
+ "spawned-rt",
+ "tracing",
+]
 
 [[package]]
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@@ -74,12 +71,6 @@ version = "2.9.0"
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 [[package]]
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-]
-
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@@ -539,21 +175,9 @@ checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 
 [[package]]
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-checksum = "c19937216e9d3aa9956d9bb8dfc0b0c8beb6058fc4f7a4dc4d850edf86a237d6"
-
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-
-[[package]]
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+version = "0.2.172"
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-checksum = "241eaef5fd12c88705a01fc1066c48c4b36e0dd4377dcdc7ec3942cea7a69956"
+checksum = "d750af042f7ef4f724306de029d18836c26c1765a54a6a3f094cbd23a7267ffa"
 
 [[package]]
 name = "lock_api"
@@ -580,6 +204,12 @@ dependencies = [
  "regex-automata 0.1.10",
 ]
 
+[[package]]
+name = "maybe-uninit"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
+
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@@ -587,16 +217,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
 [[package]]
-name = "mime"
-version = "0.3.17"
+name = "memoffset"
+version = "0.5.6"
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-checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
+checksum = "043175f069eda7b85febe4a74abbaeff828d9f8b448515d3151a14a3542811aa"
+dependencies = [
+ "autocfg",
+]
 
 [[package]]
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-version = "0.8.5"
+version = "0.8.8"
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-checksum = "8e3e04debbb59698c15bacbb6d93584a8c0ca9cc3213cb423d31f760d8843ce5"
+checksum = "3be647b768db090acb35d5ec5db2b0e1f1de11133ca123b9eacf5137868f892a"
 dependencies = [
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@@ -608,43 +241,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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- "windows-sys 0.52.0",
-]
-
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-dependencies = [
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- "spawned-rt",
- "tracing",
-]
-
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- "spawned-rt",
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-
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- "log",
- "openssl",
- "openssl-probe",
- "openssl-sys",
- "schannel",
- "security-framework",
- "security-framework-sys",
- "tempfile",
+ "wasi",
+ "windows-sys",
 ]
 
 [[package]]
@@ -672,50 +270,6 @@ version = "1.21.3"
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 checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
 
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- "openssl-macros",
- "openssl-sys",
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-
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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- "libc",
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- "vcpkg",
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@@ -738,55 +292,19 @@ version = "0.9.10"
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 checksum = "1e401f977ab385c9e4e3ab30627d6f26d00e2c73eef317493c4ec6d468726cf8"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "libc",
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- "windows-targets 0.52.6",
+ "windows-targets",
 ]
 
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-dependencies = [
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@@ -805,19 +323,13 @@ dependencies = [
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-
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 dependencies = [
- "bitflags 2.9.0",
+ "bitflags",
 ]
 
 [[package]]
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-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
-[[package]]
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+version = "0.1.24"
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-dependencies = [
- "itoa",
- "memchr",
- "ryu",
- "serde",
-]
+checksum = "719b953e2095829ee67db738b3bfa9fa368c94900df327b3f07fe6e794d2fe1f"
 
 [[package]]
-name = "serde_urlencoded"
-version = "0.7.1"
+name = "scopeguard"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
-dependencies = [
- "form_urlencoded",
- "itoa",
- "ryu",
- "serde",
-]
+checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
 [[package]]
 name = "sharded-slab"
@@ -1035,30 +397,15 @@ dependencies = [
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 ]
 
-[[package]]
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-version = "1.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
-
 [[package]]
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-checksum = "a9e9e0b4211b72e7b8b6e85c807d36c212bdb33ea8587f7569562a84df5465b1"
+checksum = "9203b8055f63a2a00e2f593bb0510367fe707d7ff1e5c872de2f537b339e5410"
 dependencies = [
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-[[package]]
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-dependencies = [
- "autocfg",
-]
-
 [[package]]
 name = "smallvec"
 version = "1.14.0"
@@ -1067,12 +414,12 @@ checksum = "7fcf8323ef1faaee30a44a340193b1ac6814fd9b7b4e88e9d4519a3e4abe1cfd"
 
 [[package]]
 name = "socket2"
-version = "0.5.8"
+version = "0.5.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c970269d99b64e60ec3bd6ad27270092a5394c4e309314b18ae3fe575695fbe8"
+checksum = "4f5fd57c80058a56cf5c777ab8a126398ece8e442983605d280a44ce79d0edef"
 dependencies = [
  "libc",
- "windows-sys 0.52.0",
+ "windows-sys",
 ]
 
 [[package]]
@@ -1087,17 +434,12 @@ dependencies = [
 name = "spawned-rt"
 version = "0.1.0"
 dependencies = [
+ "crossbeam",
  "tokio",
  "tracing",
  "tracing-subscriber",
 ]
 
-[[package]]
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-version = "1.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
-
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@@ -1109,82 +451,21 @@ dependencies = [
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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-
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- "rustix",
- "windows-sys 0.52.0",
-]
-
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 checksum = "8b9ef9bad013ada3808854ceac7b46812a6465ba368859a37e2100283d2d719c"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
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-version = "0.8.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
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-dependencies = [
- "displaydoc",
- "zerovec",
-]
-
 [[package]]
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+version = "1.45.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f382da615b842244d4b8738c82ed1275e6c5dd90c459a30941cd07080b06c91a"
+checksum = "2513ca694ef9ede0fb23fe71a4ee4107cb102b9dc1930f6d0fd77aae068ae165"
 dependencies = [
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  "bytes",
@@ -1195,7 +476,7 @@ dependencies = [
  "signal-hook-registry",
  "socket2",
  "tokio-macros",
- "windows-sys 0.52.0",
+ "windows-sys",
 ]
 
 [[package]]
@@ -1209,35 +490,6 @@ dependencies = [
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 ]
 
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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- "tokio",
-]
-
-[[package]]
-name = "tower-service"
-version = "0.3.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8df9b6e13f2d32c91b9bd719c00d1958837bc7dec474d94952798cc8e69eeec3"
-
 [[package]]
 name = "tracing"
 version = "0.1.41"
@@ -1300,163 +552,24 @@ dependencies = [
  "tracing-log",
 ]
 
-[[package]]
-name = "try-lock"
-version = "0.2.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
-
 [[package]]
 name = "unicode-ident"
 version = "1.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"
 
-[[package]]
-name = "updater"
-version = "0.1.0"
-dependencies = [
- "futures",
- "reqwest",
- "spawned-concurrency",
- "spawned-rt",
- "tracing",
-]
-
-[[package]]
-name = "url"
-version = "2.5.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "32f8b686cadd1473f4bd0117a5d28d36b1ade384ea9b5069a1c40aefed7fda60"
-dependencies = [
- "form_urlencoded",
- "idna",
- "percent-encoding",
-]
-
-[[package]]
-name = "utf8_iter"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6c140620e7ffbb22c2dee59cafe6084a59b5ffc27a8859a5f0d494b5d52b6be"
-
 [[package]]
 name = "valuable"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ba73ea9cf16a25df0c8caa16c51acb937d5712a8429db78a3ee29d5dcacd3a65"
 
-[[package]]
-name = "vcpkg"
-version = "0.2.15"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
-
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfa7760aed19e106de2c7c0b581b509f2f25d3dacaf737cb82ac61bc6d760b0e"
-dependencies = [
- "try-lock",
-]
-
 [[package]]
 name = "wasi"
 version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
-[[package]]
-name = "wasi"
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9683f9a5a998d873c0d21fcbe3c083009670149a8fab228644b8bd36b2c48cb3"
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-
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1edc8929d7499fc4e8f0be2262a241556cfc54a0bea223790e71446f2aab1ef5"
-dependencies = [
- "cfg-if",
- "once_cell",
- "rustversion",
- "wasm-bindgen-macro",
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-
-[[package]]
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-version = "0.2.100"
-source = "registry+https://github.com/rust-lang/crates.io-index"
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-dependencies = [
- "bumpalo",
- "log",
- "proc-macro2",
- "quote",
- "syn",
- "wasm-bindgen-shared",
-]
-
-[[package]]
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-dependencies = [
- "cfg-if",
- "js-sys",
- "once_cell",
- "wasm-bindgen",
- "web-sys",
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-
-[[package]]
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-version = "0.2.100"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fe63fc6d09ed3792bd0897b314f53de8e16568c2b3f7982f468c0bf9bd0b407"
-dependencies = [
- "quote",
- "wasm-bindgen-macro-support",
-]
-
-[[package]]
-name = "wasm-bindgen-macro-support"
-version = "0.2.100"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ae87ea40c9f689fc23f209965b6fb8a99ad69aeeb0231408be24920604395de"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
- "wasm-bindgen-backend",
- "wasm-bindgen-shared",
-]
-
-[[package]]
-name = "wasm-bindgen-shared"
-version = "0.2.100"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a05d73b933a847d6cccdda8f838a22ff101ad9bf93e33684f39c1f5f0eece3d"
-dependencies = [
- "unicode-ident",
-]
-
-[[package]]
-name = "web-sys"
-version = "0.3.77"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "33b6dd2ef9186f1f2072e409e99cd22a975331a6b3591b12c764e0e55c60d5d2"
-dependencies = [
- "js-sys",
- "wasm-bindgen",
-]
-
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -1479,46 +592,13 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
-[[package]]
-name = "windows-sys"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
-dependencies = [
- "windows-targets 0.48.5",
-]
-
 [[package]]
 name = "windows-sys"
 version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
 dependencies = [
- "windows-targets 0.52.6",
-]
-
-[[package]]
-name = "windows-sys"
-version = "0.59.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
-dependencies = [
- "windows-targets 0.52.6",
-]
-
-[[package]]
-name = "windows-targets"
-version = "0.48.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
-dependencies = [
- "windows_aarch64_gnullvm 0.48.5",
- "windows_aarch64_msvc 0.48.5",
- "windows_i686_gnu 0.48.5",
- "windows_i686_msvc 0.48.5",
- "windows_x86_64_gnu 0.48.5",
- "windows_x86_64_gnullvm 0.48.5",
- "windows_x86_64_msvc 0.48.5",
+ "windows-targets",
 ]
 
 [[package]]
@@ -1527,46 +607,28 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
 dependencies = [
- "windows_aarch64_gnullvm 0.52.6",
- "windows_aarch64_msvc 0.52.6",
- "windows_i686_gnu 0.52.6",
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
  "windows_i686_gnullvm",
- "windows_i686_msvc 0.52.6",
- "windows_x86_64_gnu 0.52.6",
- "windows_x86_64_gnullvm 0.52.6",
- "windows_x86_64_msvc 0.52.6",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
 ]
 
-[[package]]
-name = "windows_aarch64_gnullvm"
-version = "0.48.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
-
 [[package]]
 name = "windows_aarch64_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
 
-[[package]]
-name = "windows_aarch64_msvc"
-version = "0.48.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
-
 [[package]]
 name = "windows_aarch64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
 
-[[package]]
-name = "windows_i686_gnu"
-version = "0.48.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
-
 [[package]]
 name = "windows_i686_gnu"
 version = "0.52.6"
@@ -1579,153 +641,26 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
 
-[[package]]
-name = "windows_i686_msvc"
-version = "0.48.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
-
 [[package]]
 name = "windows_i686_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
 
-[[package]]
-name = "windows_x86_64_gnu"
-version = "0.48.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
-
 [[package]]
 name = "windows_x86_64_gnu"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
 
-[[package]]
-name = "windows_x86_64_gnullvm"
-version = "0.48.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
-
 [[package]]
 name = "windows_x86_64_gnullvm"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
 
-[[package]]
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-version = "0.48.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
-
 [[package]]
 name = "windows_x86_64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
-
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "524e57b2c537c0f9b1e69f1965311ec12182b4122e45035b1508cd24d2adadb1"
-dependencies = [
- "cfg-if",
- "windows-sys 0.48.0",
-]
-
-[[package]]
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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-]
-
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-
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-dependencies = [
- "serde",
- "stable_deref_trait",
- "yoke-derive",
- "zerofrom",
-]
-
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-version = "0.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
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- "quote",
- "syn",
- "synstructure",
-]
-
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-source = "registry+https://github.com/rust-lang/crates.io-index"
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-dependencies = [
- "zerofrom-derive",
-]
-
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- "proc-macro2",
- "quote",
- "syn",
- "synstructure",
-]
-
-[[package]]
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-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "36f0bbd478583f79edad978b407914f61b2972f5af6fa089686016be8f9af595"
-dependencies = [
- "displaydoc",
- "yoke",
- "zerofrom",
-]
-
-[[package]]
-name = "zerovec"
-version = "0.11.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4a05eb080e015ba39cc9e23bbe5e7fb04d5fb040350f99f34e338d5fdd294428"
-dependencies = [
- "yoke",
- "zerofrom",
- "zerovec-derive",
-]
-
-[[package]]
-name = "zerovec-derive"
-version = "0.11.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b96237efa0c878c64bd89c436f661be4e46b2f3eff1ebb976f7ef2321d2f58f"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
diff --git a/Cargo.toml b/Cargo.toml
index 1901a5c..d0e700b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,11 +1,8 @@
 [workspace]
 members = [
     "rt",
-    "examples/ping_pong",
-    "examples/name_server",
-    "examples/name_server_with_error",
     "examples/bank",
-    "examples/updater",
+    "examples/bank-sync",
 ]
 
 [workspace.dependencies]
diff --git a/concurrency/src/async/error.rs b/concurrency/src/async/error.rs
new file mode 100644
index 0000000..b2ceff4
--- /dev/null
+++ b/concurrency/src/async/error.rs
@@ -0,0 +1,11 @@
+#[derive(Debug)]
+pub enum GenServerError {
+    CallbackError,
+    ServerError,
+}
+
+impl<T> From<spawned_rt::r#async::mpsc::SendError<T>> for GenServerError {
+    fn from(_value: spawned_rt::r#async::mpsc::SendError<T>) -> Self {
+        Self::ServerError
+    }
+}
diff --git a/concurrency/src/gen_server.rs b/concurrency/src/async/gen_server.rs
similarity index 98%
rename from concurrency/src/gen_server.rs
rename to concurrency/src/async/gen_server.rs
index 11ec651..bfe3b0c 100644
--- a/concurrency/src/gen_server.rs
+++ b/concurrency/src/async/gen_server.rs
@@ -5,9 +5,9 @@ use std::{
     panic::{AssertUnwindSafe, catch_unwind},
 };
 
-use spawned_rt::{self as rt, JoinHandle, mpsc, oneshot};
+use spawned_rt::r#async::{self as rt, JoinHandle, mpsc, oneshot};
 
-use crate::error::GenServerError;
+use crate::r#async::error::GenServerError;
 
 #[derive(Debug)]
 pub struct GenServerHandle<G: GenServer + 'static> {
diff --git a/concurrency/src/async/mod.rs b/concurrency/src/async/mod.rs
new file mode 100644
index 0000000..6cd41b3
--- /dev/null
+++ b/concurrency/src/async/mod.rs
@@ -0,0 +1,7 @@
+//! λ-kit concurrency
+//! Some basic traits and structs to implement À-la-Erlang concurrent code.
+
+pub(crate) mod error;
+pub(crate) mod gen_server;
+pub(crate) mod process;
+pub(crate) mod time;
diff --git a/concurrency/src/process.rs b/concurrency/src/async/process.rs
similarity index 97%
rename from concurrency/src/process.rs
rename to concurrency/src/async/process.rs
index bbfc220..f3f433c 100644
--- a/concurrency/src/process.rs
+++ b/concurrency/src/async/process.rs
@@ -1,7 +1,7 @@
 //! Process trait and struct to create a process abstraction similar to Erlang processes.
 //! See examples/ping_pong for a usage example.
 
-use spawned_rt::{self as rt, JoinHandle, mpsc};
+use spawned_rt::r#async::{self as rt, JoinHandle, mpsc};
 
 #[derive(Debug)]
 pub struct ProcessInfo<T> {
diff --git a/concurrency/src/time.rs b/concurrency/src/async/time.rs
similarity index 87%
rename from concurrency/src/time.rs
rename to concurrency/src/async/time.rs
index de8bb12..5b9b9dc 100644
--- a/concurrency/src/time.rs
+++ b/concurrency/src/async/time.rs
@@ -1,6 +1,6 @@
 use std::time::Duration;
 
-use spawned_rt::{self as rt, mpsc::Sender, JoinHandle};
+use spawned_rt::r#async::{self as rt, mpsc::Sender, JoinHandle};
 
 use crate::{GenServer, GenServerInMsg};
 
diff --git a/concurrency/src/error.rs b/concurrency/src/error.rs
deleted file mode 100644
index a87f300..0000000
--- a/concurrency/src/error.rs
+++ /dev/null
@@ -1,11 +0,0 @@
-#[derive(Debug)]
-pub enum GenServerError {
-    CallbackError,
-    ServerError,
-}
-
-impl<T> From<spawned_rt::mpsc::SendError<T>> for GenServerError {
-    fn from(_value: spawned_rt::mpsc::SendError<T>) -> Self {
-        Self::ServerError
-    }
-}
diff --git a/concurrency/src/lib.rs b/concurrency/src/lib.rs
index ab6d8b0..a2b6408 100644
--- a/concurrency/src/lib.rs
+++ b/concurrency/src/lib.rs
@@ -1,12 +1,9 @@
 //! λ-kit concurrency
 //! Some basic traits and structs to implement À-la-Erlang concurrent code.
 
-mod error;
-mod gen_server;
-mod process;
-mod time;
+mod r#async;
 
-pub use error::GenServerError;
-pub use gen_server::{CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg};
-pub use process::{Process, ProcessInfo, send};
-pub use time::send_after;
+pub use r#async::error::GenServerError;
+pub use r#async::gen_server::{CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg};
+pub use r#async::process::{Process, ProcessInfo, send};
+pub use r#async::time::send_after;
diff --git a/examples/bank-sync/Cargo.toml b/examples/bank-sync/Cargo.toml
new file mode 100644
index 0000000..3903760
--- /dev/null
+++ b/examples/bank-sync/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "bank-sync"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+spawned-rt = { workspace = true }
+spawned-concurrency = { workspace = true }
+tracing = { workspace = true }
+
+[[bin]]
+name = "bank-sync"
+path = "src/main.rs"
\ No newline at end of file
diff --git a/examples/bank-sync/src/main.rs b/examples/bank-sync/src/main.rs
new file mode 100644
index 0000000..3a254c3
--- /dev/null
+++ b/examples/bank-sync/src/main.rs
@@ -0,0 +1,90 @@
+//! Simple example to test concurrency/Process abstraction.
+//!
+//! Based on Joe's Armstrong book: Programming Erlang, Second edition
+//! Section 22.1 - The Road to the Generic Server
+//!
+//! Erlang usage example:
+//! 1> my_bank:start().
+//! {ok,<0.33.0>}
+//! 2> my_bank:deposit("joe", 10).
+//! not_a_customer
+//! 3> my_bank:new_account("joe").
+//! {welcome,"joe"}
+//! 4> my_bank:deposit("joe", 10).
+//! {thanks,"joe",your_balance_is,10}
+//! 5> my_bank:deposit("joe", 30).
+//! {thanks,"joe",your_balance_is,40}
+//! 6> my_bank:withdraw("joe", 15).
+//! {thanks,"joe",your_balance_is,25}
+//! 7> my_bank:withdraw("joe", 45).
+//! {sorry,"joe",you_only_have,25,in_the_bank
+
+mod messages;
+mod server;
+
+use messages::{BankError, BankOutMessage};
+use server::Bank;
+use spawned_concurrency::GenServer as _;
+use spawned_rt as rt;
+
+fn main() {
+    rt::sync::run(execution);
+}
+
+fn execution() {
+    let mut name_server = Bank::start();
+
+    let joe = "Joe".to_string();
+
+    let result = Bank::deposit(&mut name_server, joe.clone(), 10);
+    tracing::info!("Deposit result {result:?}");
+    assert_eq!(result, Err(BankError::NotACustomer { who: joe.clone() }));
+
+    let result = Bank::new_account(&mut name_server, "Joe".to_string());
+    tracing::info!("New account result {result:?}");
+    assert_eq!(result, Ok(BankOutMessage::Welcome { who: joe.clone() }));
+
+    let result = Bank::deposit(&mut name_server, "Joe".to_string(), 10);
+    tracing::info!("Deposit result {result:?}");
+    assert_eq!(
+        result,
+        Ok(BankOutMessage::Balance {
+            who: joe.clone(),
+            amount: 10
+        })
+    );
+
+    let result = Bank::deposit(&mut name_server, "Joe".to_string(), 30);
+    tracing::info!("Deposit result {result:?}");
+    assert_eq!(
+        result,
+        Ok(BankOutMessage::Balance {
+            who: joe.clone(),
+            amount: 40
+        })
+    );
+
+    let result = Bank::withdraw(&mut name_server, "Joe".to_string(), 15);
+    tracing::info!("Withdraw result {result:?}");
+    assert_eq!(
+        result,
+        Ok(BankOutMessage::WidrawOk {
+            who: joe.clone(),
+            amount: 25
+        })
+    );
+
+    let result = Bank::withdraw(&mut name_server, "Joe".to_string(), 45);
+    tracing::info!("Withdraw result {result:?}");
+    assert_eq!(
+        result,
+        Err(BankError::InsufficientBalance {
+            who: joe,
+            amount: 25
+        })
+    );
+
+    let result = Bank::stop(&mut name_server);
+    tracing::info!("Stop result {result:?}");
+    assert_eq!(result, Ok(BankOutMessage::Stopped));
+}
\ No newline at end of file
diff --git a/examples/bank-sync/src/messages.rs b/examples/bank-sync/src/messages.rs
new file mode 100644
index 0000000..d58ae9d
--- /dev/null
+++ b/examples/bank-sync/src/messages.rs
@@ -0,0 +1,25 @@
+#[derive(Debug, Clone)]
+pub enum BankInMessage {
+    New { who: String },
+    Add { who: String, amount: i32 },
+    Remove { who: String, amount: i32 },
+    Stop,
+}
+
+#[allow(dead_code)]
+#[derive(Debug, Clone, PartialEq)]
+pub enum BankOutMessage {
+    Welcome { who: String },
+    Balance { who: String, amount: i32 },
+    WidrawOk { who: String, amount: i32 },
+    Stopped,
+}
+
+#[allow(dead_code)]
+#[derive(Debug, Clone, PartialEq)]
+pub enum BankError {
+    AlreadyACustomer { who: String },
+    NotACustomer { who: String },
+    InsufficientBalance { who: String, amount: i32 },
+    ServerError,
+}
diff --git a/examples/bank-sync/src/server.rs b/examples/bank-sync/src/server.rs
new file mode 100644
index 0000000..44fe376
--- /dev/null
+++ b/examples/bank-sync/src/server.rs
@@ -0,0 +1,113 @@
+use std::collections::HashMap;
+
+use spawned_concurrency::{CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg};
+use spawned_rt::mpsc::Sender;
+
+use crate::messages::{BankError, BankInMessage as InMessage, BankOutMessage as OutMessage};
+
+type MsgResult = Result<OutMessage, BankError>;
+type BankHandle = GenServerHandle<Bank>;
+type BankHandleMessage = GenServerInMsg<Bank>;
+type BankState = HashMap<String, i32>;
+
+pub struct Bank {}
+
+impl Bank {
+    pub async fn stop(server: &mut BankHandle) -> MsgResult {
+        server
+            .call(InMessage::Stop)
+            .await
+            .unwrap_or(Err(BankError::ServerError))
+    }
+
+    pub async fn new_account(server: &mut BankHandle, who: String) -> MsgResult {
+        server
+            .call(InMessage::New { who })
+            .await
+            .unwrap_or(Err(BankError::ServerError))
+    }
+
+    pub async fn deposit(server: &mut BankHandle, who: String, amount: i32) -> MsgResult {
+        server
+            .call(InMessage::Add { who, amount })
+            .await
+            .unwrap_or(Err(BankError::ServerError))
+    }
+
+    pub async fn withdraw(server: &mut BankHandle, who: String, amount: i32) -> MsgResult {
+        server
+            .call(InMessage::Remove { who, amount })
+            .await
+            .unwrap_or(Err(BankError::ServerError))
+    }
+}
+
+impl GenServer for Bank {
+    type InMsg = InMessage;
+    type OutMsg = MsgResult;
+    type Error = BankError;
+    type State = BankState;
+
+    fn initial_state(&self) -> Self::State {
+        HashMap::new()
+    }
+
+    fn new() -> Self {
+        Self {}
+    }
+
+    fn handle_call(
+        &mut self,
+        message: InMessage,
+        _tx: &Sender<BankHandleMessage>,
+        state: &mut Self::State,
+    ) -> CallResponse<Self::OutMsg> {
+        match message.clone() {
+            InMessage::New { who } => match state.get(&who) {
+                Some(_amount) => CallResponse::Reply(Err(BankError::AlreadyACustomer { who })),
+                None => {
+                    state.insert(who.clone(), 0);
+                    CallResponse::Reply(Ok(OutMessage::Welcome { who }))
+                }
+            },
+            InMessage::Add { who, amount } => match state.get(&who) {
+                Some(current) => {
+                    let new_amount = current + amount;
+                    state.insert(who.clone(), new_amount);
+                    CallResponse::Reply(Ok(OutMessage::Balance {
+                        who,
+                        amount: new_amount,
+                    }))
+                }
+                None => CallResponse::Reply(Err(BankError::NotACustomer { who })),
+            },
+            InMessage::Remove { who, amount } => match state.get(&who) {
+                Some(current) => match current < &amount {
+                    true => CallResponse::Reply(Err(BankError::InsufficientBalance {
+                        who,
+                        amount: *current,
+                    })),
+                    false => {
+                        let new_amount = current - amount;
+                        state.insert(who.clone(), new_amount);
+                        CallResponse::Reply(Ok(OutMessage::WidrawOk {
+                            who,
+                            amount: new_amount,
+                        }))
+                    }
+                },
+                None => CallResponse::Reply(Err(BankError::NotACustomer { who })),
+            },
+            InMessage::Stop => CallResponse::Stop(Ok(OutMessage::Stopped)),
+        }
+    }
+
+    fn handle_cast(
+        &mut self,
+        _message: InMessage,
+        _tx: &Sender<BankHandleMessage>,
+        _state: &mut Self::State,
+    ) -> CastResponse {
+        CastResponse::NoReply
+    }
+}
diff --git a/examples/bank/src/main.rs b/examples/bank/src/main.rs
index 54f7275..f161498 100644
--- a/examples/bank/src/main.rs
+++ b/examples/bank/src/main.rs
@@ -28,7 +28,7 @@ use spawned_concurrency::GenServer as _;
 use spawned_rt as rt;
 
 fn main() {
-    rt::run(async {
+    rt::r#async::run(async {
         let mut name_server = Bank::start();
 
         let joe = "Joe".to_string();
diff --git a/examples/ping_pong/Cargo.toml b/examples/ping_pong/Cargo.toml
index 71105a3..9cbc292 100644
--- a/examples/ping_pong/Cargo.toml
+++ b/examples/ping_pong/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
-spawned-rt = { workspace = true }
+spawned-rt-sync = { workspace = true }
 spawned-concurrency = { workspace = true }
 tracing = { workspace = true }
 
diff --git a/examples/updater/src/server.rs b/examples/updater/src/server.rs
index 4bb907b..68542f5 100644
--- a/examples/updater/src/server.rs
+++ b/examples/updater/src/server.rs
@@ -59,8 +59,9 @@ impl GenServer for UpdaterServer {
                     InMessage::Check("url".to_string()),
                 );
                 tracing::info!("Fetching: {url:?}");
+                //let enter = futures::executor::enter();
                 let resp = futures::executor::block_on(req());
-
+                //drop(enter);
                 tracing::info!("Response: {resp:?}");
 
                 CastResponse::NoReply
diff --git a/rt/Cargo.toml b/rt/Cargo.toml
index 7c455d8..c2d595b 100644
--- a/rt/Cargo.toml
+++ b/rt/Cargo.toml
@@ -5,5 +5,6 @@ edition = "2024"
 
 [dependencies]
 tokio = { version = "1", features = ["full"] }
+crossbeam = { version = "0.7.3" }
 tracing = { workspace = true }
 tracing-subscriber = { workspace = true }
\ No newline at end of file
diff --git a/rt/src/async/mod.rs b/rt/src/async/mod.rs
new file mode 100644
index 0000000..c25175a
--- /dev/null
+++ b/rt/src/async/mod.rs
@@ -0,0 +1,24 @@
+//! Runtime wrapper to remove dependencies from code. Using this library will
+//! allow to set a tokio runtime or any other runtime, once implemented just by
+//! changing the enabled feature.
+//! May implement the `deterministic` version based on comonware.xyz's runtime:
+//! https://github.com/commonwarexyz/monorepo/blob/main/runtime/src/deterministic.rs
+//!
+//! Currently, only a very limited set of tokio functionality is reexported. We may want to
+//! extend this functionality as needed.
+
+mod tokio;
+
+use crate::tracing::init_tracing;
+
+pub use crate::r#async::tokio::mpsc;
+pub use crate::r#async::tokio::sleep;
+pub use crate::r#async::tokio::oneshot;
+pub use crate::r#async::tokio::{JoinHandle, Runtime, Handle, spawn, spawn_blocking};
+
+pub fn run<F: Future>(future: F) -> F::Output {
+    init_tracing();
+
+    let rt = Runtime::new().unwrap();
+    rt.block_on(future)
+}
diff --git a/rt/src/tokio/mod.rs b/rt/src/async/tokio/mod.rs
similarity index 64%
rename from rt/src/tokio/mod.rs
rename to rt/src/async/tokio/mod.rs
index 030d282..09cc804 100644
--- a/rt/src/tokio/mod.rs
+++ b/rt/src/async/tokio/mod.rs
@@ -4,6 +4,6 @@ pub mod oneshot;
 
 pub use tokio::{
     time::sleep,
-    runtime::Runtime,
-    task::{JoinHandle, spawn},
+    runtime::{Runtime, Handle},
+    task::{JoinHandle, spawn, spawn_blocking},
 };
diff --git a/rt/src/tokio/mpsc.rs b/rt/src/async/tokio/mpsc.rs
similarity index 100%
rename from rt/src/tokio/mpsc.rs
rename to rt/src/async/tokio/mpsc.rs
diff --git a/rt/src/tokio/oneshot.rs b/rt/src/async/tokio/oneshot.rs
similarity index 100%
rename from rt/src/tokio/oneshot.rs
rename to rt/src/async/tokio/oneshot.rs
diff --git a/rt/src/lib.rs b/rt/src/lib.rs
index 19c0126..0a45042 100644
--- a/rt/src/lib.rs
+++ b/rt/src/lib.rs
@@ -7,33 +7,11 @@
 //! Currently, only a very limited set of tokio functionality is reexported. We may want to
 //! extend this functionality as needed.
 
-mod tokio;
+mod tracing;
+pub mod sync;
+pub mod r#async;
 
-use std::str::FromStr;
-
-use tracing_subscriber::EnvFilter;
-use tracing_subscriber::FmtSubscriber;
-use tracing_subscriber::filter::Directive;
-
-pub use crate::tokio::mpsc;
-pub use crate::tokio::sleep;
-pub use crate::tokio::oneshot;
-pub use crate::tokio::{JoinHandle, Runtime, spawn};
-
-pub fn run<F: Future>(future: F) -> F::Output {
-    init_tracing();
-
-    let rt = Runtime::new().unwrap();
-    rt.block_on(future)
-}
-
-fn init_tracing() {
-    let subscriber = FmtSubscriber::builder()
-        .with_env_filter(
-            EnvFilter::builder()
-                .with_default_directive(Directive::from_str("info").unwrap())
-                .from_env_lossy(),
-        )
-        .finish();
-    tracing::subscriber::set_global_default(subscriber).unwrap();
-}
+pub use crate::r#async::mpsc;
+pub use crate::sync::sleep;
+pub use crate::sync::oneshot;
+pub use crate::sync::spawn;
diff --git a/rt/src/sync/mod.rs b/rt/src/sync/mod.rs
new file mode 100644
index 0000000..3ffa1e2
--- /dev/null
+++ b/rt/src/sync/mod.rs
@@ -0,0 +1,15 @@
+pub mod mpsc;
+pub mod oneshot;
+
+pub use std::thread::{
+    sleep,
+    spawn,
+};
+
+use crate::tracing::init_tracing;
+
+pub fn run(f: fn()) -> () {
+    init_tracing();
+
+    f()
+}
\ No newline at end of file
diff --git a/rt/src/sync/mpsc.rs b/rt/src/sync/mpsc.rs
new file mode 100644
index 0000000..2d7065b
--- /dev/null
+++ b/rt/src/sync/mpsc.rs
@@ -0,0 +1,5 @@
+//! Tokio.rs reexports to prevent tokio dependencies within external code
+
+pub use std::sync::mpsc::{
+    Receiver, Sender, channel,
+};
diff --git a/rt/src/sync/oneshot.rs b/rt/src/sync/oneshot.rs
new file mode 100644
index 0000000..352c546
--- /dev/null
+++ b/rt/src/sync/oneshot.rs
@@ -0,0 +1,3 @@
+//! Tokio.rs reexports to prevent tokio dependencies within external code
+
+pub use crossbeam::{Receiver, Sender, crossbeam_channel as channel};
diff --git a/rt/src/tracing/mod.rs b/rt/src/tracing/mod.rs
new file mode 100644
index 0000000..93886b5
--- /dev/null
+++ b/rt/src/tracing/mod.rs
@@ -0,0 +1,19 @@
+//! Tracing initializer
+//! 
+
+use std::str::FromStr;
+
+use tracing_subscriber::EnvFilter;
+use tracing_subscriber::FmtSubscriber;
+use tracing_subscriber::filter::Directive;
+
+pub(crate) fn init_tracing() {
+    let subscriber = FmtSubscriber::builder()
+        .with_env_filter(
+            EnvFilter::builder()
+                .with_default_directive(Directive::from_str("info").unwrap())
+                .from_env_lossy(),
+        )
+        .finish();
+    tracing::subscriber::set_global_default(subscriber).unwrap();
+}

From fe98c0042d159ae9629ab6233ef6f5bb52736257 Mon Sep 17 00:00:00 2001
From: Esteban Dimitroff Hodi <esteban.dimitroff@lambdaclass.com>
Date: Wed, 14 May 2025 15:22:07 -0300
Subject: [PATCH 06/15] Using url parameter and some formatting

---
 concurrency/src/gen_server.rs  | 15 +++++++++------
 concurrency/src/time.rs        |  8 +++-----
 examples/updater/src/main.rs   |  5 +++--
 examples/updater/src/server.rs | 13 +++++--------
 rt/src/lib.rs                  |  2 +-
 rt/src/tokio/mod.rs            |  2 +-
 6 files changed, 22 insertions(+), 23 deletions(-)

diff --git a/concurrency/src/gen_server.rs b/concurrency/src/gen_server.rs
index 4d84f19..e353be0 100644
--- a/concurrency/src/gen_server.rs
+++ b/concurrency/src/gen_server.rs
@@ -1,11 +1,8 @@
 //! GernServer trait and structs to create an abstraction similar to Erlang gen_server.
 //! See examples/name_server for a usage example.
-use std::{
-    fmt::Debug,
-    panic::AssertUnwindSafe,
-};
 use futures::future::FutureExt as _;
 use spawned_rt::{self as rt, JoinHandle, mpsc, oneshot};
+use std::{fmt::Debug, panic::AssertUnwindSafe};
 
 use crate::error::GenServerError;
 
@@ -136,7 +133,10 @@ where
             let (keep_running, error) = match message {
                 Some(GenServerInMsg::Call { sender, message }) => {
                     let (keep_running, error, response) =
-                        match AssertUnwindSafe(self.handle_call(message, tx, state)).catch_unwind().await {
+                        match AssertUnwindSafe(self.handle_call(message, tx, state))
+                            .catch_unwind()
+                            .await
+                        {
                             Ok(response) => match response {
                                 CallResponse::Reply(response) => (true, None, Ok(response)),
                                 CallResponse::Stop(response) => (false, None, Ok(response)),
@@ -152,7 +152,10 @@ where
                     (keep_running, error)
                 }
                 Some(GenServerInMsg::Cast { message }) => {
-                    match AssertUnwindSafe(self.handle_cast(message, tx, state)).catch_unwind().await {
+                    match AssertUnwindSafe(self.handle_cast(message, tx, state))
+                        .catch_unwind()
+                        .await
+                    {
                         Ok(response) => match response {
                             CastResponse::NoReply => (true, None),
                             CastResponse::Stop => (false, None),
diff --git a/concurrency/src/time.rs b/concurrency/src/time.rs
index de8bb12..be1e2a3 100644
--- a/concurrency/src/time.rs
+++ b/concurrency/src/time.rs
@@ -1,11 +1,9 @@
 use std::time::Duration;
 
-use spawned_rt::{self as rt, mpsc::Sender, JoinHandle};
+use spawned_rt::{self as rt, JoinHandle, mpsc::Sender};
 
 use crate::{GenServer, GenServerInMsg};
 
-
-
 // Sends a message after a given period to the specified GenServer. The task terminates
 // once the send has completed
 pub fn send_after<T>(
@@ -18,6 +16,6 @@ where
 {
     rt::spawn(async move {
         rt::sleep(period).await;
-        let _ = tx.send(GenServerInMsg::Cast { message } );
+        let _ = tx.send(GenServerInMsg::Cast { message });
     })
-}
\ No newline at end of file
+}
diff --git a/examples/updater/src/main.rs b/examples/updater/src/main.rs
index a51906b..c94ec68 100644
--- a/examples/updater/src/main.rs
+++ b/examples/updater/src/main.rs
@@ -1,7 +1,7 @@
 //! Example to test a recurrent gen_server.
 //!
 //! Just activates periodically and performs an http request
-//! 
+//!
 
 mod messages;
 mod server;
@@ -17,7 +17,8 @@ fn main() {
     rt::run(async {
         let mut update_server = UpdaterServer::start();
 
-        let result = UpdaterServer::check(&mut update_server, "ea".to_string()).await;
+        let result =
+            UpdaterServer::check(&mut update_server, "https://httpbin.org/ip".to_string()).await;
         tracing::info!("Update check done: {result:?}");
         assert_eq!(result, UpdaterOutMessage::Ok);
 
diff --git a/examples/updater/src/server.rs b/examples/updater/src/server.rs
index a362c27..ee68bb4 100644
--- a/examples/updater/src/server.rs
+++ b/examples/updater/src/server.rs
@@ -56,10 +56,10 @@ impl GenServer for UpdaterServer {
                 send_after(
                     Duration::from_millis(1000),
                     tx.clone(),
-                    InMessage::Check("url".to_string()),
+                    InMessage::Check(url.clone()),
                 );
-                tracing::info!("Fetching: {url:?}");
-                let resp = req().await;
+                tracing::info!("Fetching: {url}");
+                let resp = req(url).await;
 
                 tracing::info!("Response: {resp:?}");
 
@@ -69,9 +69,6 @@ impl GenServer for UpdaterServer {
     }
 }
 
-async fn req() -> Result<String, reqwest::Error> {
-    reqwest::get("https://httpbin.org/ip")
-        .await?
-        .text()
-        .await
+async fn req(url: String) -> Result<String, reqwest::Error> {
+    reqwest::get(url).await?.text().await
 }
diff --git a/rt/src/lib.rs b/rt/src/lib.rs
index 19c0126..347f81f 100644
--- a/rt/src/lib.rs
+++ b/rt/src/lib.rs
@@ -16,8 +16,8 @@ use tracing_subscriber::FmtSubscriber;
 use tracing_subscriber::filter::Directive;
 
 pub use crate::tokio::mpsc;
-pub use crate::tokio::sleep;
 pub use crate::tokio::oneshot;
+pub use crate::tokio::sleep;
 pub use crate::tokio::{JoinHandle, Runtime, spawn};
 
 pub fn run<F: Future>(future: F) -> F::Output {
diff --git a/rt/src/tokio/mod.rs b/rt/src/tokio/mod.rs
index 030d282..0ad2c20 100644
--- a/rt/src/tokio/mod.rs
+++ b/rt/src/tokio/mod.rs
@@ -3,7 +3,7 @@ pub mod mpsc;
 pub mod oneshot;
 
 pub use tokio::{
-    time::sleep,
     runtime::Runtime,
     task::{JoinHandle, spawn},
+    time::sleep,
 };

From 05f66b44e7503e0ffb743fbe92f260821c19f62d Mon Sep 17 00:00:00 2001
From: Esteban Dimitroff Hodi <esteban.dimitroff@lambdaclass.com>
Date: Thu, 15 May 2025 11:43:07 -0300
Subject: [PATCH 07/15] removed initial_state from trait and replaced it by
 providing state at start

---
 concurrency/Cargo.toml                        |  5 +++-
 concurrency/src/gen_server.rs                 | 11 +++-----
 examples/bank/src/main.rs                     |  4 ++-
 examples/bank/src/server.rs                   |  4 ---
 examples/name_server/src/main.rs              |  4 ++-
 examples/name_server/src/server.rs            |  4 ---
 examples/name_server_with_error/src/main.rs   |  4 ++-
 examples/name_server_with_error/src/server.rs |  4 ---
 examples/updater/src/main.rs                  | 10 ++++---
 examples/updater/src/messages.rs              |  2 +-
 examples/updater/src/server.rs                | 27 +++++++++----------
 rt/Cargo.toml                                 |  5 +++-
 12 files changed, 40 insertions(+), 44 deletions(-)

diff --git a/concurrency/Cargo.toml b/concurrency/Cargo.toml
index 7e9f20c..cfbf997 100644
--- a/concurrency/Cargo.toml
+++ b/concurrency/Cargo.toml
@@ -6,4 +6,7 @@ edition = "2024"
 [dependencies]
 spawned-rt = { workspace = true }
 tracing = { workspace = true }
-futures = "0.3.1"
\ No newline at end of file
+futures = "0.3.1"
+
+[lib]
+path = "./src/lib.rs"
\ No newline at end of file
diff --git a/concurrency/src/gen_server.rs b/concurrency/src/gen_server.rs
index e353be0..685cccd 100644
--- a/concurrency/src/gen_server.rs
+++ b/concurrency/src/gen_server.rs
@@ -14,14 +14,13 @@ pub struct GenServerHandle<G: GenServer + 'static> {
 }
 
 impl<G: GenServer> GenServerHandle<G> {
-    pub(crate) fn new() -> Self {
+    pub(crate) fn new(mut initial_state: G::State) -> Self {
         let (tx, mut rx) = mpsc::channel::<GenServerInMsg<G>>();
         let tx_clone = tx.clone();
         let mut gen_server: G = GenServer::new();
-        let mut state = gen_server.initial_state();
         let handle = rt::spawn(async move {
             if gen_server
-                .run(&tx_clone, &mut rx, &mut state)
+                .run(&tx_clone, &mut rx, &mut initial_state)
                 .await
                 .is_err()
             {
@@ -85,8 +84,8 @@ where
 
     fn new() -> Self;
 
-    fn start() -> GenServerHandle<Self> {
-        GenServerHandle::new()
+    fn start(initial_state: Self::State) -> GenServerHandle<Self> {
+        GenServerHandle::new(initial_state)
     }
 
     fn run(
@@ -177,8 +176,6 @@ where
         }
     }
 
-    fn initial_state(&self) -> Self::State;
-
     fn handle_call(
         &mut self,
         message: Self::InMsg,
diff --git a/examples/bank/src/main.rs b/examples/bank/src/main.rs
index 54f7275..db6e7a0 100644
--- a/examples/bank/src/main.rs
+++ b/examples/bank/src/main.rs
@@ -22,6 +22,8 @@
 mod messages;
 mod server;
 
+use std::collections::HashMap;
+
 use messages::{BankError, BankOutMessage};
 use server::Bank;
 use spawned_concurrency::GenServer as _;
@@ -29,7 +31,7 @@ use spawned_rt as rt;
 
 fn main() {
     rt::run(async {
-        let mut name_server = Bank::start();
+        let mut name_server = Bank::start(HashMap::new());
 
         let joe = "Joe".to_string();
 
diff --git a/examples/bank/src/server.rs b/examples/bank/src/server.rs
index feab27a..d5e43bc 100644
--- a/examples/bank/src/server.rs
+++ b/examples/bank/src/server.rs
@@ -48,10 +48,6 @@ impl GenServer for Bank {
     type Error = BankError;
     type State = BankState;
 
-    fn initial_state(&self) -> Self::State {
-        HashMap::new()
-    }
-
     fn new() -> Self {
         Self {}
     }
diff --git a/examples/name_server/src/main.rs b/examples/name_server/src/main.rs
index 7acd3e0..8eb69d8 100644
--- a/examples/name_server/src/main.rs
+++ b/examples/name_server/src/main.rs
@@ -14,6 +14,8 @@
 mod messages;
 mod server;
 
+use std::collections::HashMap;
+
 use messages::NameServerOutMessage;
 use server::NameServer;
 use spawned_concurrency::GenServer as _;
@@ -21,7 +23,7 @@ use spawned_rt as rt;
 
 fn main() {
     rt::run(async {
-        let mut name_server = NameServer::start();
+        let mut name_server = NameServer::start(HashMap::new());
 
         let result =
             NameServer::add(&mut name_server, "Joe".to_string(), "At Home".to_string()).await;
diff --git a/examples/name_server/src/server.rs b/examples/name_server/src/server.rs
index 4a2671f..d282251 100644
--- a/examples/name_server/src/server.rs
+++ b/examples/name_server/src/server.rs
@@ -37,10 +37,6 @@ impl GenServer for NameServer {
         Self {}
     }
 
-    fn initial_state(&self) -> Self::State {
-        HashMap::new()
-    }
-
     async fn handle_call(
         &mut self,
         message: InMessage,
diff --git a/examples/name_server_with_error/src/main.rs b/examples/name_server_with_error/src/main.rs
index f8329c0..ae4aae2 100644
--- a/examples/name_server_with_error/src/main.rs
+++ b/examples/name_server_with_error/src/main.rs
@@ -14,6 +14,8 @@
 mod messages;
 mod server;
 
+use std::collections::HashMap;
+
 use messages::NameServerOutMessage;
 use server::NameServer;
 use spawned_concurrency::GenServer as _;
@@ -21,7 +23,7 @@ use spawned_rt as rt;
 
 fn main() {
     rt::run(async {
-        let mut name_server = NameServer::start();
+        let mut name_server = NameServer::start(HashMap::new());
 
         let result =
             NameServer::add(&mut name_server, "Joe".to_string(), "At Home".to_string()).await;
diff --git a/examples/name_server_with_error/src/server.rs b/examples/name_server_with_error/src/server.rs
index c1dcbf5..134c7c8 100644
--- a/examples/name_server_with_error/src/server.rs
+++ b/examples/name_server_with_error/src/server.rs
@@ -36,10 +36,6 @@ impl GenServer for NameServer {
     type Error = std::fmt::Error;
     type State = NameServerState;
 
-    fn initial_state(&self) -> NameServerState {
-        HashMap::new()
-    }
-
     fn new() -> Self {
         NameServer {}
     }
diff --git a/examples/updater/src/main.rs b/examples/updater/src/main.rs
index c94ec68..4b3aa50 100644
--- a/examples/updater/src/main.rs
+++ b/examples/updater/src/main.rs
@@ -9,16 +9,18 @@ mod server;
 use std::{thread, time::Duration};
 
 use messages::UpdaterOutMessage;
-use server::UpdaterServer;
+use server::{UpdateServerState, UpdaterServer};
 use spawned_concurrency::GenServer as _;
 use spawned_rt as rt;
 
 fn main() {
     rt::run(async {
-        let mut update_server = UpdaterServer::start();
+        let mut update_server = UpdaterServer::start(UpdateServerState {
+            url: "https://httpbin.org/ip".to_string(),
+            periodicity: Duration::from_millis(1000),
+        });
 
-        let result =
-            UpdaterServer::check(&mut update_server, "https://httpbin.org/ip".to_string()).await;
+        let result = UpdaterServer::check(&mut update_server).await;
         tracing::info!("Update check done: {result:?}");
         assert_eq!(result, UpdaterOutMessage::Ok);
 
diff --git a/examples/updater/src/messages.rs b/examples/updater/src/messages.rs
index beed32d..daa0589 100644
--- a/examples/updater/src/messages.rs
+++ b/examples/updater/src/messages.rs
@@ -1,6 +1,6 @@
 #[derive(Debug, Clone)]
 pub enum UpdaterInMessage {
-    Check(String),
+    Check,
 }
 
 #[allow(dead_code)]
diff --git a/examples/updater/src/server.rs b/examples/updater/src/server.rs
index ee68bb4..31e817e 100644
--- a/examples/updater/src/server.rs
+++ b/examples/updater/src/server.rs
@@ -1,4 +1,4 @@
-use std::{collections::HashMap, time::Duration};
+use std::time::Duration;
 
 use spawned_concurrency::{
     CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg, send_after,
@@ -9,13 +9,17 @@ use crate::messages::{UpdaterInMessage as InMessage, UpdaterOutMessage as OutMes
 
 type UpdateServerHandle = GenServerHandle<UpdaterServer>;
 type UpdateServerMessage = GenServerInMsg<UpdaterServer>;
-type UpdateServerState = HashMap<String, String>;
 
+#[derive(Clone)]
+pub struct UpdateServerState {
+    pub url: String,
+    pub periodicity: Duration,
+}
 pub struct UpdaterServer {}
 
 impl UpdaterServer {
-    pub async fn check(server: &mut UpdateServerHandle, url: String) -> OutMessage {
-        match server.cast(InMessage::Check(url)).await {
+    pub async fn check(server: &mut UpdateServerHandle) -> OutMessage {
+        match server.cast(InMessage::Check).await {
             Ok(_) => OutMessage::Ok,
             Err(_) => OutMessage::Error,
         }
@@ -32,10 +36,6 @@ impl GenServer for UpdaterServer {
         Self {}
     }
 
-    fn initial_state(&self) -> Self::State {
-        HashMap::new()
-    }
-
     async fn handle_call(
         &mut self,
         _message: InMessage,
@@ -49,15 +49,12 @@ impl GenServer for UpdaterServer {
         &mut self,
         message: InMessage,
         tx: &Sender<UpdateServerMessage>,
-        _state: &mut Self::State,
+        state: &mut Self::State,
     ) -> CastResponse {
         match message {
-            Self::InMsg::Check(url) => {
-                send_after(
-                    Duration::from_millis(1000),
-                    tx.clone(),
-                    InMessage::Check(url.clone()),
-                );
+            Self::InMsg::Check => {
+                send_after(state.periodicity, tx.clone(), InMessage::Check);
+                let url = state.url.clone();
                 tracing::info!("Fetching: {url}");
                 let resp = req(url).await;
 
diff --git a/rt/Cargo.toml b/rt/Cargo.toml
index 7c455d8..679ba98 100644
--- a/rt/Cargo.toml
+++ b/rt/Cargo.toml
@@ -6,4 +6,7 @@ edition = "2024"
 [dependencies]
 tokio = { version = "1", features = ["full"] }
 tracing = { workspace = true }
-tracing-subscriber = { workspace = true }
\ No newline at end of file
+tracing-subscriber = { workspace = true }
+
+[lib]
+path = "./src/lib.rs"
\ No newline at end of file

From 07881413fa162600bfe0a9c663843b386a76d5ea Mon Sep 17 00:00:00 2001
From: Esteban Dimitroff Hodi <esteban.dimitroff@lambdaclass.com>
Date: Thu, 15 May 2025 14:39:34 -0300
Subject: [PATCH 08/15] cargo fmt

---
 concurrency/src/async/time.rs  | 8 +++-----
 concurrency/src/lib.rs         | 4 +++-
 examples/bank-sync/src/main.rs | 2 +-
 rt/src/async/mod.rs            | 2 +-
 rt/src/lib.rs                  | 6 +++---
 rt/src/sync/mod.rs             | 7 ++-----
 rt/src/sync/mpsc.rs            | 4 +---
 rt/src/tracing/mod.rs          | 2 +-
 8 files changed, 15 insertions(+), 20 deletions(-)

diff --git a/concurrency/src/async/time.rs b/concurrency/src/async/time.rs
index 5b9b9dc..a85392f 100644
--- a/concurrency/src/async/time.rs
+++ b/concurrency/src/async/time.rs
@@ -1,11 +1,9 @@
 use std::time::Duration;
 
-use spawned_rt::r#async::{self as rt, mpsc::Sender, JoinHandle};
+use spawned_rt::r#async::{self as rt, JoinHandle, mpsc::Sender};
 
 use crate::{GenServer, GenServerInMsg};
 
-
-
 // Sends a message after a given period to the specified GenServer. The task terminates
 // once the send has completed
 pub fn send_after<T>(
@@ -18,6 +16,6 @@ where
 {
     rt::spawn(async move {
         rt::sleep(period).await;
-        let _ = tx.send(GenServerInMsg::Cast { message } );
+        let _ = tx.send(GenServerInMsg::Cast { message });
     })
-}
\ No newline at end of file
+}
diff --git a/concurrency/src/lib.rs b/concurrency/src/lib.rs
index a2b6408..2345086 100644
--- a/concurrency/src/lib.rs
+++ b/concurrency/src/lib.rs
@@ -4,6 +4,8 @@
 mod r#async;
 
 pub use r#async::error::GenServerError;
-pub use r#async::gen_server::{CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg};
+pub use r#async::gen_server::{
+    CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg,
+};
 pub use r#async::process::{Process, ProcessInfo, send};
 pub use r#async::time::send_after;
diff --git a/examples/bank-sync/src/main.rs b/examples/bank-sync/src/main.rs
index 3a254c3..b8ef9cd 100644
--- a/examples/bank-sync/src/main.rs
+++ b/examples/bank-sync/src/main.rs
@@ -87,4 +87,4 @@ fn execution() {
     let result = Bank::stop(&mut name_server);
     tracing::info!("Stop result {result:?}");
     assert_eq!(result, Ok(BankOutMessage::Stopped));
-}
\ No newline at end of file
+}
diff --git a/rt/src/async/mod.rs b/rt/src/async/mod.rs
index 8a3f8d1..a582b05 100644
--- a/rt/src/async/mod.rs
+++ b/rt/src/async/mod.rs
@@ -12,8 +12,8 @@ mod tokio;
 use crate::tracing::init_tracing;
 
 pub use crate::r#async::tokio::mpsc;
-pub use crate::r#async::tokio::sleep;
 pub use crate::r#async::tokio::oneshot;
+pub use crate::r#async::tokio::sleep;
 pub use crate::r#async::tokio::{JoinHandle, Runtime, spawn};
 
 pub fn run<F: Future>(future: F) -> F::Output {
diff --git a/rt/src/lib.rs b/rt/src/lib.rs
index b8071ca..5f383c7 100644
--- a/rt/src/lib.rs
+++ b/rt/src/lib.rs
@@ -7,11 +7,11 @@
 //! Currently, only a very limited set of tokio functionality is reexported. We may want to
 //! extend this functionality as needed.
 
-mod tracing;
-pub mod sync;
 pub mod r#async;
+pub mod sync;
+mod tracing;
 
 pub use crate::sync::mpsc;
-pub use crate::sync::sleep;
 pub use crate::sync::oneshot;
+pub use crate::sync::sleep;
 pub use crate::sync::spawn;
diff --git a/rt/src/sync/mod.rs b/rt/src/sync/mod.rs
index 3ffa1e2..c07e103 100644
--- a/rt/src/sync/mod.rs
+++ b/rt/src/sync/mod.rs
@@ -1,10 +1,7 @@
 pub mod mpsc;
 pub mod oneshot;
 
-pub use std::thread::{
-    sleep,
-    spawn,
-};
+pub use std::thread::{sleep, spawn};
 
 use crate::tracing::init_tracing;
 
@@ -12,4 +9,4 @@ pub fn run(f: fn()) -> () {
     init_tracing();
 
     f()
-}
\ No newline at end of file
+}
diff --git a/rt/src/sync/mpsc.rs b/rt/src/sync/mpsc.rs
index 2d7065b..fb8fda2 100644
--- a/rt/src/sync/mpsc.rs
+++ b/rt/src/sync/mpsc.rs
@@ -1,5 +1,3 @@
 //! Tokio.rs reexports to prevent tokio dependencies within external code
 
-pub use std::sync::mpsc::{
-    Receiver, Sender, channel,
-};
+pub use std::sync::mpsc::{Receiver, Sender, channel};
diff --git a/rt/src/tracing/mod.rs b/rt/src/tracing/mod.rs
index 93886b5..dde973f 100644
--- a/rt/src/tracing/mod.rs
+++ b/rt/src/tracing/mod.rs
@@ -1,5 +1,5 @@
 //! Tracing initializer
-//! 
+//!
 
 use std::str::FromStr;
 

From a30dfd8165617b8fa84b897b66f6b0f4ed9fabca Mon Sep 17 00:00:00 2001
From: Esteban Dimitroff Hodi <esteban.dimitroff@lambdaclass.com>
Date: Thu, 15 May 2025 17:42:27 -0300
Subject: [PATCH 09/15] Added sync (std::thead::spawn) version with examples

---
 Cargo.lock                                    | 1105 ++++++++++++++++-
 Cargo.toml                                    |    7 +-
 concurrency/src/async/gen_server.rs           |    2 +-
 concurrency/src/async/mod.rs                  |   13 +-
 concurrency/src/async/time.rs                 |    2 +-
 concurrency/src/lib.rs                        |   10 +-
 concurrency/src/sync/error.rs                 |   11 +
 concurrency/src/sync/gen_server.rs            |  179 +++
 concurrency/src/sync/mod.rs                   |   11 +
 concurrency/src/sync/process.rs               |   71 ++
 concurrency/src/sync/time.rs                  |   21 +
 examples/bank-sync/src/main.rs                |   90 --
 examples/bank/src/main.rs                     |    6 +-
 examples/bank/src/server.rs                   |    4 +-
 examples/{bank-sync => bank_sync}/Cargo.toml  |    4 +-
 examples/bank_sync/src/main.rs                |   90 ++
 .../{bank-sync => bank_sync}/src/messages.rs  |    0
 .../{bank-sync => bank_sync}/src/server.rs    |   22 +-
 examples/name_server/src/main.rs              |    4 +-
 examples/name_server/src/server.rs            |    6 +-
 examples/name_server_with_error/src/main.rs   |    4 +-
 examples/name_server_with_error/src/server.rs |    4 +-
 examples/ping_pong/Cargo.toml                 |    2 +-
 examples/ping_pong/src/consumer.rs            |    4 +-
 examples/ping_pong/src/main.rs                |    2 +-
 examples/ping_pong/src/messages.rs            |    2 +-
 examples/ping_pong/src/producer.rs            |    4 +-
 examples/ping_pong_sync/Cargo.toml            |   13 +
 examples/ping_pong_sync/src/consumer.rs       |   26 +
 examples/ping_pong_sync/src/main.rs           |   55 +
 examples/ping_pong_sync/src/messages.rs       |    7 +
 examples/ping_pong_sync/src/producer.rs       |   32 +
 examples/updater/src/main.rs                  |   18 +-
 examples/updater/src/messages.rs              |    4 -
 examples/updater/src/server.rs                |   54 +-
 rt/src/lib.rs                                 |    5 -
 rt/src/sync/mod.rs                            |    4 +-
 rt/src/sync/mpsc.rs                           |    2 +-
 rt/src/sync/oneshot.rs                        |    2 +-
 39 files changed, 1665 insertions(+), 237 deletions(-)
 create mode 100644 concurrency/src/sync/error.rs
 create mode 100644 concurrency/src/sync/gen_server.rs
 create mode 100644 concurrency/src/sync/mod.rs
 create mode 100644 concurrency/src/sync/process.rs
 create mode 100644 concurrency/src/sync/time.rs
 delete mode 100644 examples/bank-sync/src/main.rs
 rename examples/{bank-sync => bank_sync}/Cargo.toml (83%)
 create mode 100644 examples/bank_sync/src/main.rs
 rename examples/{bank-sync => bank_sync}/src/messages.rs (100%)
 rename examples/{bank-sync => bank_sync}/src/server.rs (83%)
 create mode 100644 examples/ping_pong_sync/Cargo.toml
 create mode 100644 examples/ping_pong_sync/src/consumer.rs
 create mode 100644 examples/ping_pong_sync/src/main.rs
 create mode 100644 examples/ping_pong_sync/src/messages.rs
 create mode 100644 examples/ping_pong_sync/src/producer.rs

diff --git a/Cargo.lock b/Cargo.lock
index 5fc26c6..ce22125 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -44,7 +44,7 @@ dependencies = [
  "miniz_oxide",
  "object",
  "rustc-demangle",
- "windows-targets",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -57,7 +57,7 @@ dependencies = [
 ]
 
 [[package]]
-name = "bank-sync"
+name = "bank_sync"
 version = "0.1.0"
 dependencies = [
  "spawned-concurrency",
@@ -65,18 +65,45 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "base64"
+version = "0.21.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
+
+[[package]]
+name = "bitflags"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+
 [[package]]
 name = "bitflags"
 version = "2.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1b8e56985ec62d17e9c1001dc89c88ecd7dc08e47eba5ec7c29c7b5eeecde967"
 
+[[package]]
+name = "bumpalo"
+version = "3.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1628fb46dfa0b37568d12e5edd512553eccf6a22a78e8bde00bb4aed84d5bdbf"
+
 [[package]]
 name = "bytes"
 version = "1.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d71b6127be86fdcfddb610f7182ac57211d4b18a3e9c82eb2d17662f2227ad6a"
 
+[[package]]
+name = "cc"
+version = "1.2.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32db95edf998450acc7881c932f94cd9b05c87b4b2599e8bab064753da4acfd1"
+dependencies = [
+ "shlex",
+]
+
 [[package]]
 name = "cfg-if"
 version = "0.1.10"
@@ -89,6 +116,22 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "core-foundation"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91e195e091a93c46f7102ec7818a2aa394e1e1771c3ab4825963fa03e45afb8f"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
+[[package]]
+name = "core-foundation-sys"
+version = "0.8.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "773648b94d0e5d620f64f280777445740e61fe701025087ec8b57f45c791888b"
+
 [[package]]
 name = "crossbeam"
 version = "0.7.3"
@@ -161,6 +204,78 @@ dependencies = [
  "lazy_static",
 ]
 
+[[package]]
+name = "displaydoc"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "97369cbbc041bc366949bc74d34658d6cda5621039731c6310521892a3a20ae0"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "encoding_rs"
+version = "0.8.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75030f3c4f45dafd7586dd6780965a8c7e8e285a5ecb86713e63a79c5b2766f3"
+dependencies = [
+ "cfg-if 1.0.0",
+]
+
+[[package]]
+name = "equivalent"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
+
+[[package]]
+name = "errno"
+version = "0.3.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cea14ef9355e3beab063703aa9dab15afd25f0667c341310c1e5274bb1d0da18"
+dependencies = [
+ "libc",
+ "windows-sys 0.52.0",
+]
+
+[[package]]
+name = "fastrand"
+version = "2.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "37909eebbb50d72f9059c3b6d82c0463f2ff062c9e95845c43a6c9c0355411be"
+
+[[package]]
+name = "fnv"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
+
+[[package]]
+name = "foreign-types"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
+dependencies = [
+ "foreign-types-shared",
+]
+
+[[package]]
+name = "foreign-types-shared"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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+ "openssl",
+ "openssl-probe",
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+version = "0.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a05eb080e015ba39cc9e23bbe5e7fb04d5fb040350f99f34e338d5fdd294428"
+dependencies = [
+ "yoke",
+ "zerofrom",
+ "zerovec-derive",
+]
+
+[[package]]
+name = "zerovec-derive"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b96237efa0c878c64bd89c436f661be4e46b2f3eff1ebb976f7ef2321d2f58f"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
diff --git a/Cargo.toml b/Cargo.toml
index d0e700b..84fa9de 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,12 @@
 members = [
     "rt",
     "examples/bank",
-    "examples/bank-sync",
+    "examples/bank_sync",
+    "examples/name_server",
+    "examples/name_server_with_error",
+    "examples/ping_pong",
+    "examples/ping_pong_sync",
+    "examples/updater",
 ]
 
 [workspace.dependencies]
diff --git a/concurrency/src/async/gen_server.rs b/concurrency/src/async/gen_server.rs
index 1e7883f..22a40ca 100644
--- a/concurrency/src/async/gen_server.rs
+++ b/concurrency/src/async/gen_server.rs
@@ -4,7 +4,7 @@ use futures::future::FutureExt as _;
 use spawned_rt::r#async::{self as rt, JoinHandle, mpsc, oneshot};
 use std::{fmt::Debug, panic::AssertUnwindSafe};
 
-use crate::r#async::error::GenServerError;
+use super::error::GenServerError;
 
 #[derive(Debug)]
 pub struct GenServerHandle<G: GenServer + 'static> {
diff --git a/concurrency/src/async/mod.rs b/concurrency/src/async/mod.rs
index 6cd41b3..ab6d8b0 100644
--- a/concurrency/src/async/mod.rs
+++ b/concurrency/src/async/mod.rs
@@ -1,7 +1,12 @@
 //! λ-kit concurrency
 //! Some basic traits and structs to implement À-la-Erlang concurrent code.
 
-pub(crate) mod error;
-pub(crate) mod gen_server;
-pub(crate) mod process;
-pub(crate) mod time;
+mod error;
+mod gen_server;
+mod process;
+mod time;
+
+pub use error::GenServerError;
+pub use gen_server::{CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg};
+pub use process::{Process, ProcessInfo, send};
+pub use time::send_after;
diff --git a/concurrency/src/async/time.rs b/concurrency/src/async/time.rs
index a85392f..7751a77 100644
--- a/concurrency/src/async/time.rs
+++ b/concurrency/src/async/time.rs
@@ -2,7 +2,7 @@ use std::time::Duration;
 
 use spawned_rt::r#async::{self as rt, JoinHandle, mpsc::Sender};
 
-use crate::{GenServer, GenServerInMsg};
+use super::{GenServer, GenServerInMsg};
 
 // Sends a message after a given period to the specified GenServer. The task terminates
 // once the send has completed
diff --git a/concurrency/src/lib.rs b/concurrency/src/lib.rs
index 2345086..3c4f575 100644
--- a/concurrency/src/lib.rs
+++ b/concurrency/src/lib.rs
@@ -1,11 +1,5 @@
 //! λ-kit concurrency
 //! Some basic traits and structs to implement À-la-Erlang concurrent code.
 
-mod r#async;
-
-pub use r#async::error::GenServerError;
-pub use r#async::gen_server::{
-    CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg,
-};
-pub use r#async::process::{Process, ProcessInfo, send};
-pub use r#async::time::send_after;
+pub mod r#async;
+pub mod sync;
diff --git a/concurrency/src/sync/error.rs b/concurrency/src/sync/error.rs
new file mode 100644
index 0000000..8e4b3b7
--- /dev/null
+++ b/concurrency/src/sync/error.rs
@@ -0,0 +1,11 @@
+#[derive(Debug)]
+pub enum GenServerError {
+    CallbackError,
+    ServerError,
+}
+
+impl<T> From<spawned_rt::sync::mpsc::SendError<T>> for GenServerError {
+    fn from(_value: spawned_rt::sync::mpsc::SendError<T>) -> Self {
+        Self::ServerError
+    }
+}
diff --git a/concurrency/src/sync/gen_server.rs b/concurrency/src/sync/gen_server.rs
new file mode 100644
index 0000000..3fed99f
--- /dev/null
+++ b/concurrency/src/sync/gen_server.rs
@@ -0,0 +1,179 @@
+//! GernServer trait and structs to create an abstraction similar to Erlang gen_server.
+//! See examples/name_server for a usage example.
+use spawned_rt::sync::{self as rt, JoinHandle, mpsc, oneshot};
+use std::{
+    fmt::Debug,
+    panic::{AssertUnwindSafe, catch_unwind},
+};
+
+use super::error::GenServerError;
+
+#[derive(Debug)]
+pub struct GenServerHandle<G: GenServer + 'static> {
+    pub tx: mpsc::Sender<GenServerInMsg<G>>,
+    #[allow(unused)]
+    handle: JoinHandle<()>,
+}
+
+impl<G: GenServer> GenServerHandle<G> {
+    pub(crate) fn new(mut initial_state: G::State) -> Self {
+        let (tx, mut rx) = mpsc::channel::<GenServerInMsg<G>>();
+        let tx_clone = tx.clone();
+        let mut gen_server: G = GenServer::new();
+        let handle = rt::spawn(move || {
+            if gen_server
+                .run(&tx_clone, &mut rx, &mut initial_state)
+                .is_err()
+            {
+                tracing::trace!("GenServer crashed")
+            };
+        });
+        GenServerHandle { tx, handle }
+    }
+
+    pub fn sender(&self) -> mpsc::Sender<GenServerInMsg<G>> {
+        self.tx.clone()
+    }
+
+    pub fn call(&mut self, message: G::InMsg) -> Result<G::OutMsg, GenServerError> {
+        let (oneshot_tx, oneshot_rx) = oneshot::channel::<Result<G::OutMsg, GenServerError>>();
+        self.tx.send(GenServerInMsg::Call {
+            sender: oneshot_tx,
+            message,
+        })?;
+        match oneshot_rx.recv() {
+            Ok(result) => result,
+            Err(_) => Err(GenServerError::ServerError),
+        }
+    }
+
+    pub fn cast(&mut self, message: G::InMsg) -> Result<(), GenServerError> {
+        self.tx
+            .send(GenServerInMsg::Cast { message })
+            .map_err(|_error| GenServerError::ServerError)
+    }
+}
+
+pub enum GenServerInMsg<A: GenServer> {
+    Call {
+        sender: oneshot::Sender<Result<A::OutMsg, GenServerError>>,
+        message: A::InMsg,
+    },
+    Cast {
+        message: A::InMsg,
+    },
+}
+
+pub enum CallResponse<U> {
+    Reply(U),
+    Stop(U),
+}
+
+pub enum CastResponse {
+    NoReply,
+    Stop,
+}
+
+pub trait GenServer
+where
+    Self: Send + Sized,
+{
+    type InMsg: Send + Sized;
+    type OutMsg: Send + Sized;
+    type State: Clone + Send;
+    type Error: Debug;
+
+    fn new() -> Self;
+
+    fn start(initial_state: Self::State) -> GenServerHandle<Self> {
+        GenServerHandle::new(initial_state)
+    }
+
+    fn run(
+        &mut self,
+        tx: &mpsc::Sender<GenServerInMsg<Self>>,
+        rx: &mut mpsc::Receiver<GenServerInMsg<Self>>,
+        state: &mut Self::State,
+    ) -> Result<(), GenServerError> {
+        self.main_loop(tx, rx, state)?;
+        Ok(())
+    }
+
+    fn main_loop(
+        &mut self,
+        tx: &mpsc::Sender<GenServerInMsg<Self>>,
+        rx: &mut mpsc::Receiver<GenServerInMsg<Self>>,
+        state: &mut Self::State,
+    ) -> Result<(), GenServerError> {
+        loop {
+            if !self.receive(tx, rx, state)? {
+                break;
+            }
+        }
+        tracing::trace!("Stopping GenServer");
+        Ok(())
+    }
+
+    fn receive(
+        &mut self,
+        tx: &mpsc::Sender<GenServerInMsg<Self>>,
+        rx: &mut mpsc::Receiver<GenServerInMsg<Self>>,
+        state: &mut Self::State,
+    ) -> Result<bool, GenServerError> {
+        let message = rx.recv().ok();
+
+        // Save current state in case of a rollback
+        let state_clone = state.clone();
+
+        let (keep_running, error) = match message {
+            Some(GenServerInMsg::Call { sender, message }) => {
+                let (keep_running, error, response) =
+                    match catch_unwind(AssertUnwindSafe(|| self.handle_call(message, tx, state))) {
+                        Ok(response) => match response {
+                            CallResponse::Reply(response) => (true, None, Ok(response)),
+                            CallResponse::Stop(response) => (false, None, Ok(response)),
+                        },
+                        Err(error) => (true, Some(error), Err(GenServerError::CallbackError)),
+                    };
+                // Send response back
+                if sender.send(response).is_err() {
+                    tracing::trace!("GenServer failed to send response back, client must have died")
+                };
+                (keep_running, error)
+            }
+            Some(GenServerInMsg::Cast { message }) => {
+                match catch_unwind(AssertUnwindSafe(|| self.handle_cast(message, tx, state))) {
+                    Ok(response) => match response {
+                        CastResponse::NoReply => (true, None),
+                        CastResponse::Stop => (false, None),
+                    },
+                    Err(error) => (true, Some(error)),
+                }
+            }
+            None => {
+                // Channel has been closed; won't receive further messages. Stop the server.
+                (false, None)
+            }
+        };
+        if let Some(error) = error {
+            tracing::trace!("Error in callback, reverting state - Error: '{error:?}'");
+            // Restore initial state (ie. dismiss any change)
+            *state = state_clone;
+        };
+        Ok(keep_running)
+    }
+
+    fn handle_call(
+        &mut self,
+        message: Self::InMsg,
+        tx: &mpsc::Sender<GenServerInMsg<Self>>,
+        state: &mut Self::State,
+    ) -> CallResponse<Self::OutMsg>;
+
+    fn handle_cast(
+        &mut self,
+        _message: Self::InMsg,
+        _tx: &mpsc::Sender<GenServerInMsg<Self>>,
+        state: &mut Self::State,
+    ) -> CastResponse;
+}
diff --git a/concurrency/src/sync/mod.rs b/concurrency/src/sync/mod.rs
new file mode 100644
index 0000000..b50c10f
--- /dev/null
+++ b/concurrency/src/sync/mod.rs
@@ -0,0 +1,11 @@
+//! λ-kit concurrency
+//! Some basic traits and structs to implement À-la-Erlang concurrent code.
+
+mod error;
+mod gen_server;
+mod process;
+mod time;
+
+pub use gen_server::{CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg};
+pub use process::{Process, ProcessInfo, send};
+pub use time::send_after;
diff --git a/concurrency/src/sync/process.rs b/concurrency/src/sync/process.rs
new file mode 100644
index 0000000..56c7b8d
--- /dev/null
+++ b/concurrency/src/sync/process.rs
@@ -0,0 +1,71 @@
+//! Process trait and struct to create a process abstraction similar to Erlang processes.
+//! See examples/ping_pong for a usage example.
+
+use spawned_rt::sync::{self as rt, JoinHandle, mpsc};
+
+#[derive(Debug)]
+pub struct ProcessInfo<T> {
+    pub tx: mpsc::Sender<T>,
+    pub handle: JoinHandle<()>,
+}
+
+impl<T> ProcessInfo<T> {
+    pub fn sender(&self) -> mpsc::Sender<T> {
+        self.tx.clone()
+    }
+
+    pub fn handle(self) -> JoinHandle<()> {
+        self.handle
+    }
+}
+
+pub trait Process<T: Send + 'static>
+where
+    Self: Send + Sync + Sized + 'static,
+{
+    fn spawn(mut self) -> ProcessInfo<T> {
+        let (tx, mut rx) = mpsc::channel::<T>();
+        let tx_clone = tx.clone();
+        let handle = rt::spawn(move || self.run(&tx_clone, &mut rx));
+        ProcessInfo { tx, handle }
+    }
+
+    fn run(&mut self, tx: &mpsc::Sender<T>, rx: &mut mpsc::Receiver<T>) {
+        self.init(tx);
+        self.main_loop(tx, rx);
+    }
+
+    fn main_loop(&mut self, tx: &mpsc::Sender<T>, rx: &mut mpsc::Receiver<T>) {
+        loop {
+            if self.should_stop() {
+                break;
+            }
+
+            self.receive(tx, rx);
+        }
+    }
+
+    fn should_stop(&self) -> bool {
+        false
+    }
+
+    fn init(&mut self, _tx: &mpsc::Sender<T>) {
+        {}
+    }
+
+    fn receive(&mut self, tx: &mpsc::Sender<T>, rx: &mut mpsc::Receiver<T>) -> T {
+        match rx.recv().ok() {
+            Some(message) => self.handle(message, tx),
+            None => todo!(),
+        }
+    }
+
+    fn handle(&mut self, message: T, tx: &mpsc::Sender<T>) -> T;
+}
+
+pub fn send<T>(tx: &mpsc::Sender<T>, message: T)
+where
+    T: Send,
+{
+    let _ = tx.send(message);
+}
diff --git a/concurrency/src/sync/time.rs b/concurrency/src/sync/time.rs
new file mode 100644
index 0000000..6ea613f
--- /dev/null
+++ b/concurrency/src/sync/time.rs
@@ -0,0 +1,21 @@
+use std::time::Duration;
+
+use spawned_rt::sync::{self as rt, JoinHandle, mpsc::Sender};
+
+use super::gen_server::{GenServer, GenServerInMsg};
+
+// Sends a message after a given period to the specified GenServer. The task terminates
+// once the send has completed
+pub fn send_after<T>(
+    period: Duration,
+    tx: Sender<GenServerInMsg<T>>,
+    message: T::InMsg,
+) -> JoinHandle<()>
+where
+    T: GenServer + 'static,
+{
+    rt::spawn(move || {
+        rt::sleep(period);
+        let _ = tx.send(GenServerInMsg::Cast { message });
+    })
+}
diff --git a/examples/bank-sync/src/main.rs b/examples/bank-sync/src/main.rs
deleted file mode 100644
index b8ef9cd..0000000
--- a/examples/bank-sync/src/main.rs
+++ /dev/null
@@ -1,90 +0,0 @@
-//! Simple example to test concurrency/Process abstraction.
-//!
-//! Based on Joe's Armstrong book: Programming Erlang, Second edition
-//! Section 22.1 - The Road to the Generic Server
-//!
-//! Erlang usage example:
-//! 1> my_bank:start().
-//! {ok,<0.33.0>}
-//! 2> my_bank:deposit("joe", 10).
-//! not_a_customer
-//! 3> my_bank:new_account("joe").
-//! {welcome,"joe"}
-//! 4> my_bank:deposit("joe", 10).
-//! {thanks,"joe",your_balance_is,10}
-//! 5> my_bank:deposit("joe", 30).
-//! {thanks,"joe",your_balance_is,40}
-//! 6> my_bank:withdraw("joe", 15).
-//! {thanks,"joe",your_balance_is,25}
-//! 7> my_bank:withdraw("joe", 45).
-//! {sorry,"joe",you_only_have,25,in_the_bank
-
-mod messages;
-mod server;
-
-use messages::{BankError, BankOutMessage};
-use server::Bank;
-use spawned_concurrency::GenServer as _;
-use spawned_rt as rt;
-
-fn main() {
-    rt::sync::run(execution);
-}
-
-fn execution() {
-    let mut name_server = Bank::start();
-
-    let joe = "Joe".to_string();
-
-    let result = Bank::deposit(&mut name_server, joe.clone(), 10);
-    tracing::info!("Deposit result {result:?}");
-    assert_eq!(result, Err(BankError::NotACustomer { who: joe.clone() }));
-
-    let result = Bank::new_account(&mut name_server, "Joe".to_string());
-    tracing::info!("New account result {result:?}");
-    assert_eq!(result, Ok(BankOutMessage::Welcome { who: joe.clone() }));
-
-    let result = Bank::deposit(&mut name_server, "Joe".to_string(), 10);
-    tracing::info!("Deposit result {result:?}");
-    assert_eq!(
-        result,
-        Ok(BankOutMessage::Balance {
-            who: joe.clone(),
-            amount: 10
-        })
-    );
-
-    let result = Bank::deposit(&mut name_server, "Joe".to_string(), 30);
-    tracing::info!("Deposit result {result:?}");
-    assert_eq!(
-        result,
-        Ok(BankOutMessage::Balance {
-            who: joe.clone(),
-            amount: 40
-        })
-    );
-
-    let result = Bank::withdraw(&mut name_server, "Joe".to_string(), 15);
-    tracing::info!("Withdraw result {result:?}");
-    assert_eq!(
-        result,
-        Ok(BankOutMessage::WidrawOk {
-            who: joe.clone(),
-            amount: 25
-        })
-    );
-
-    let result = Bank::withdraw(&mut name_server, "Joe".to_string(), 45);
-    tracing::info!("Withdraw result {result:?}");
-    assert_eq!(
-        result,
-        Err(BankError::InsufficientBalance {
-            who: joe,
-            amount: 25
-        })
-    );
-
-    let result = Bank::stop(&mut name_server);
-    tracing::info!("Stop result {result:?}");
-    assert_eq!(result, Ok(BankOutMessage::Stopped));
-}
diff --git a/examples/bank/src/main.rs b/examples/bank/src/main.rs
index e5592df..3cfa634 100644
--- a/examples/bank/src/main.rs
+++ b/examples/bank/src/main.rs
@@ -26,11 +26,11 @@ use std::collections::HashMap;
 
 use messages::{BankError, BankOutMessage};
 use server::Bank;
-use spawned_concurrency::GenServer as _;
-use spawned_rt as rt;
+use spawned_concurrency::r#async::GenServer as _;
+use spawned_rt::r#async as rt;
 
 fn main() {
-    rt::r#async::run(async {
+    rt::run(async {
         let mut name_server = Bank::start(HashMap::new());
 
         let joe = "Joe".to_string();
diff --git a/examples/bank/src/server.rs b/examples/bank/src/server.rs
index 15fe939..dacd92e 100644
--- a/examples/bank/src/server.rs
+++ b/examples/bank/src/server.rs
@@ -1,6 +1,8 @@
 use std::collections::HashMap;
 
-use spawned_concurrency::{CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg};
+use spawned_concurrency::r#async::{
+    CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg,
+};
 use spawned_rt::r#async::mpsc::Sender;
 
 use crate::messages::{BankError, BankInMessage as InMessage, BankOutMessage as OutMessage};
diff --git a/examples/bank-sync/Cargo.toml b/examples/bank_sync/Cargo.toml
similarity index 83%
rename from examples/bank-sync/Cargo.toml
rename to examples/bank_sync/Cargo.toml
index 3903760..be313c7 100644
--- a/examples/bank-sync/Cargo.toml
+++ b/examples/bank_sync/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-name = "bank-sync"
+name = "bank_sync"
 version = "0.1.0"
 edition = "2024"
 
@@ -9,5 +9,5 @@ spawned-concurrency = { workspace = true }
 tracing = { workspace = true }
 
 [[bin]]
-name = "bank-sync"
+name = "bank_sync"
 path = "src/main.rs"
\ No newline at end of file
diff --git a/examples/bank_sync/src/main.rs b/examples/bank_sync/src/main.rs
new file mode 100644
index 0000000..cfc4d57
--- /dev/null
+++ b/examples/bank_sync/src/main.rs
@@ -0,0 +1,90 @@
+//! Simple example to test concurrency/Process abstraction.
+//!
+//! Based on Joe's Armstrong book: Programming Erlang, Second edition
+//! Section 22.1 - The Road to the Generic Server
+//!
+//! Erlang usage example:
+//! 1> my_bank:start().
+//! {ok,<0.33.0>}
+//! 2> my_bank:deposit("joe", 10).
+//! not_a_customer
+//! 3> my_bank:new_account("joe").
+//! {welcome,"joe"}
+//! 4> my_bank:deposit("joe", 10).
+//! {thanks,"joe",your_balance_is,10}
+//! 5> my_bank:deposit("joe", 30).
+//! {thanks,"joe",your_balance_is,40}
+//! 6> my_bank:withdraw("joe", 15).
+//! {thanks,"joe",your_balance_is,25}
+//! 7> my_bank:withdraw("joe", 45).
+//! {sorry,"joe",you_only_have,25,in_the_bank
+
+mod messages;
+mod server;
+
+use std::collections::HashMap;
+
+use messages::{BankError, BankOutMessage};
+use server::Bank;
+use spawned_concurrency::sync::GenServer as _;
+use spawned_rt::sync as rt;
+
+fn main() {
+    rt::run(|| {
+        let mut name_server = Bank::start(HashMap::new());
+
+        let joe = "Joe".to_string();
+
+        let result = Bank::deposit(&mut name_server, joe.clone(), 10);
+        tracing::info!("Deposit result {result:?}");
+        assert_eq!(result, Err(BankError::NotACustomer { who: joe.clone() }));
+
+        let result = Bank::new_account(&mut name_server, "Joe".to_string());
+        tracing::info!("New account result {result:?}");
+        assert_eq!(result, Ok(BankOutMessage::Welcome { who: joe.clone() }));
+
+        let result = Bank::deposit(&mut name_server, "Joe".to_string(), 10);
+        tracing::info!("Deposit result {result:?}");
+        assert_eq!(
+            result,
+            Ok(BankOutMessage::Balance {
+                who: joe.clone(),
+                amount: 10
+            })
+        );
+
+        let result = Bank::deposit(&mut name_server, "Joe".to_string(), 30);
+        tracing::info!("Deposit result {result:?}");
+        assert_eq!(
+            result,
+            Ok(BankOutMessage::Balance {
+                who: joe.clone(),
+                amount: 40
+            })
+        );
+
+        let result = Bank::withdraw(&mut name_server, "Joe".to_string(), 15);
+        tracing::info!("Withdraw result {result:?}");
+        assert_eq!(
+            result,
+            Ok(BankOutMessage::WidrawOk {
+                who: joe.clone(),
+                amount: 25
+            })
+        );
+
+        let result = Bank::withdraw(&mut name_server, "Joe".to_string(), 45);
+        tracing::info!("Withdraw result {result:?}");
+        assert_eq!(
+            result,
+            Err(BankError::InsufficientBalance {
+                who: joe,
+                amount: 25
+            })
+        );
+
+        let result = Bank::stop(&mut name_server);
+        tracing::info!("Stop result {result:?}");
+        assert_eq!(result, Ok(BankOutMessage::Stopped));
+    })
+}
diff --git a/examples/bank-sync/src/messages.rs b/examples/bank_sync/src/messages.rs
similarity index 100%
rename from examples/bank-sync/src/messages.rs
rename to examples/bank_sync/src/messages.rs
diff --git a/examples/bank-sync/src/server.rs b/examples/bank_sync/src/server.rs
similarity index 83%
rename from examples/bank-sync/src/server.rs
rename to examples/bank_sync/src/server.rs
index 44fe376..6a5449a 100644
--- a/examples/bank-sync/src/server.rs
+++ b/examples/bank_sync/src/server.rs
@@ -1,7 +1,9 @@
 use std::collections::HashMap;
 
-use spawned_concurrency::{CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg};
-use spawned_rt::mpsc::Sender;
+use spawned_concurrency::sync::{
+    CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg,
+};
+use spawned_rt::sync::mpsc::Sender;
 
 use crate::messages::{BankError, BankInMessage as InMessage, BankOutMessage as OutMessage};
 
@@ -13,31 +15,27 @@ type BankState = HashMap<String, i32>;
 pub struct Bank {}
 
 impl Bank {
-    pub async fn stop(server: &mut BankHandle) -> MsgResult {
+    pub fn stop(server: &mut BankHandle) -> MsgResult {
         server
             .call(InMessage::Stop)
-            .await
             .unwrap_or(Err(BankError::ServerError))
     }
 
-    pub async fn new_account(server: &mut BankHandle, who: String) -> MsgResult {
+    pub fn new_account(server: &mut BankHandle, who: String) -> MsgResult {
         server
             .call(InMessage::New { who })
-            .await
             .unwrap_or(Err(BankError::ServerError))
     }
 
-    pub async fn deposit(server: &mut BankHandle, who: String, amount: i32) -> MsgResult {
+    pub fn deposit(server: &mut BankHandle, who: String, amount: i32) -> MsgResult {
         server
             .call(InMessage::Add { who, amount })
-            .await
             .unwrap_or(Err(BankError::ServerError))
     }
 
-    pub async fn withdraw(server: &mut BankHandle, who: String, amount: i32) -> MsgResult {
+    pub fn withdraw(server: &mut BankHandle, who: String, amount: i32) -> MsgResult {
         server
             .call(InMessage::Remove { who, amount })
-            .await
             .unwrap_or(Err(BankError::ServerError))
     }
 }
@@ -48,10 +46,6 @@ impl GenServer for Bank {
     type Error = BankError;
     type State = BankState;
 
-    fn initial_state(&self) -> Self::State {
-        HashMap::new()
-    }
-
     fn new() -> Self {
         Self {}
     }
diff --git a/examples/name_server/src/main.rs b/examples/name_server/src/main.rs
index 8eb69d8..e021952 100644
--- a/examples/name_server/src/main.rs
+++ b/examples/name_server/src/main.rs
@@ -18,8 +18,8 @@ use std::collections::HashMap;
 
 use messages::NameServerOutMessage;
 use server::NameServer;
-use spawned_concurrency::GenServer as _;
-use spawned_rt as rt;
+use spawned_concurrency::r#async::GenServer as _;
+use spawned_rt::r#async as rt;
 
 fn main() {
     rt::run(async {
diff --git a/examples/name_server/src/server.rs b/examples/name_server/src/server.rs
index d282251..5d4a9a3 100644
--- a/examples/name_server/src/server.rs
+++ b/examples/name_server/src/server.rs
@@ -1,7 +1,9 @@
 use std::collections::HashMap;
 
-use spawned_concurrency::{CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg};
-use spawned_rt::mpsc::Sender;
+use spawned_concurrency::r#async::{
+    CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg,
+};
+use spawned_rt::r#async::mpsc::Sender;
 
 use crate::messages::{NameServerInMessage as InMessage, NameServerOutMessage as OutMessage};
 
diff --git a/examples/name_server_with_error/src/main.rs b/examples/name_server_with_error/src/main.rs
index ae4aae2..9fa5099 100644
--- a/examples/name_server_with_error/src/main.rs
+++ b/examples/name_server_with_error/src/main.rs
@@ -18,8 +18,8 @@ use std::collections::HashMap;
 
 use messages::NameServerOutMessage;
 use server::NameServer;
-use spawned_concurrency::GenServer as _;
-use spawned_rt as rt;
+use spawned_concurrency::r#async::GenServer as _;
+use spawned_rt::r#async as rt;
 
 fn main() {
     rt::run(async {
diff --git a/examples/name_server_with_error/src/server.rs b/examples/name_server_with_error/src/server.rs
index 134c7c8..b6c595d 100644
--- a/examples/name_server_with_error/src/server.rs
+++ b/examples/name_server_with_error/src/server.rs
@@ -1,9 +1,9 @@
 use std::collections::HashMap;
 
-use spawned_concurrency::{
+use spawned_concurrency::r#async::{
     CallResponse, CastResponse, GenServer, GenServerError, GenServerHandle, GenServerInMsg,
 };
-use spawned_rt::mpsc::Sender;
+use spawned_rt::r#async::mpsc::Sender;
 
 use crate::messages::{NameServerInMessage as InMessage, NameServerOutMessage as OutMessage};
 
diff --git a/examples/ping_pong/Cargo.toml b/examples/ping_pong/Cargo.toml
index 9cbc292..71105a3 100644
--- a/examples/ping_pong/Cargo.toml
+++ b/examples/ping_pong/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
-spawned-rt-sync = { workspace = true }
+spawned-rt = { workspace = true }
 spawned-concurrency = { workspace = true }
 tracing = { workspace = true }
 
diff --git a/examples/ping_pong/src/consumer.rs b/examples/ping_pong/src/consumer.rs
index 9a2b57c..06609d3 100644
--- a/examples/ping_pong/src/consumer.rs
+++ b/examples/ping_pong/src/consumer.rs
@@ -1,5 +1,5 @@
-use spawned_concurrency::{self as concurrency, Process, ProcessInfo};
-use spawned_rt::mpsc::Sender;
+use spawned_concurrency::r#async::{self as concurrency, Process, ProcessInfo};
+use spawned_rt::r#async::mpsc::Sender;
 
 use crate::messages::Message;
 
diff --git a/examples/ping_pong/src/main.rs b/examples/ping_pong/src/main.rs
index 57cc655..2cca61d 100644
--- a/examples/ping_pong/src/main.rs
+++ b/examples/ping_pong/src/main.rs
@@ -41,7 +41,7 @@ use std::{thread, time::Duration};
 
 use consumer::Consumer;
 use producer::Producer;
-use spawned_rt as rt;
+use spawned_rt::r#async as rt;
 
 fn main() {
     rt::run(async {
diff --git a/examples/ping_pong/src/messages.rs b/examples/ping_pong/src/messages.rs
index e72ccfa..e7a6a58 100644
--- a/examples/ping_pong/src/messages.rs
+++ b/examples/ping_pong/src/messages.rs
@@ -1,4 +1,4 @@
-use spawned_rt::mpsc::Sender;
+use spawned_rt::r#async::mpsc::Sender;
 
 #[derive(Debug, Clone)]
 pub enum Message {
diff --git a/examples/ping_pong/src/producer.rs b/examples/ping_pong/src/producer.rs
index 6b950a1..ac888d4 100644
--- a/examples/ping_pong/src/producer.rs
+++ b/examples/ping_pong/src/producer.rs
@@ -1,5 +1,5 @@
-use spawned_concurrency::{self as concurrency, Process, ProcessInfo};
-use spawned_rt::mpsc::Sender;
+use spawned_concurrency::r#async::{self as concurrency, Process, ProcessInfo};
+use spawned_rt::r#async::mpsc::Sender;
 
 use crate::messages::Message;
 
diff --git a/examples/ping_pong_sync/Cargo.toml b/examples/ping_pong_sync/Cargo.toml
new file mode 100644
index 0000000..acb1146
--- /dev/null
+++ b/examples/ping_pong_sync/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "ping_pong_sync"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+spawned-rt = { workspace = true }
+spawned-concurrency = { workspace = true }
+tracing = { workspace = true }
+
+[[bin]]
+name = "ping_pong_sync"
+path = "src/main.rs"
\ No newline at end of file
diff --git a/examples/ping_pong_sync/src/consumer.rs b/examples/ping_pong_sync/src/consumer.rs
new file mode 100644
index 0000000..7e10bd0
--- /dev/null
+++ b/examples/ping_pong_sync/src/consumer.rs
@@ -0,0 +1,26 @@
+use spawned_concurrency::sync::{self as concurrency, Process, ProcessInfo};
+use spawned_rt::sync::mpsc::Sender;
+
+use crate::messages::Message;
+
+pub struct Consumer {}
+
+impl Consumer {
+    pub fn spawn_new() -> ProcessInfo<Message> {
+        Self {}.spawn()
+    }
+}
+
+impl Process<Message> for Consumer {
+    fn handle(&mut self, message: Message, _tx: &Sender<Message>) -> Message {
+        tracing::info!("Consumer received {message:?}");
+        match message.clone() {
+            Message::Ping { from } => {
+                tracing::info!("Consumer sent Pong");
+                concurrency::send(&from, Message::Pong);
+            }
+            Message::Pong => (),
+        };
+        message
+    }
+}
diff --git a/examples/ping_pong_sync/src/main.rs b/examples/ping_pong_sync/src/main.rs
new file mode 100644
index 0000000..99c0987
--- /dev/null
+++ b/examples/ping_pong_sync/src/main.rs
@@ -0,0 +1,55 @@
+//! Simple example to test concurrency/Process abstraction
+//!
+//! Based on an Erlang example:
+//! -module(ping).
+//!
+//! -export([ping/1, pong/0, spawn_consumer/0, spawn_producer/1, start/0]).
+//!
+//! ping(Pid) ->
+//!     Pid ! {ping, self()},
+//!     receive
+//!         pong ->
+//!             io:format("Received pong!!!~n"),
+//!             ping(Pid)
+//!     end.
+//!
+//! pong() ->
+//!     receive
+//!         {ping, Pid} ->
+//!             io:format("Received ping!!~n"),
+//!             Pid ! pong,
+//!             pong();
+//!         die ->
+//!             ok
+//!         end.
+//!
+//! spawn_consumer() ->
+//!     spawn(ping, pong, []).
+//!
+//! spawn_producer(Pid) ->
+//!     spawn(ping, ping, [Pid]).
+//!
+//! start() ->
+//!     Pid = spawn_consumer(),
+//!     spawn_producer(Pid).
+
+mod consumer;
+mod messages;
+mod producer;
+
+use std::{thread, time::Duration};
+
+use consumer::Consumer;
+use producer::Producer;
+use spawned_rt::sync as rt;
+
+fn main() {
+    rt::run(|| {
+        let consumer = Consumer::spawn_new();
+
+        Producer::spawn_new(consumer.sender());
+
+        // giving it some time before ending
+        thread::sleep(Duration::from_millis(1));
+    })
+}
diff --git a/examples/ping_pong_sync/src/messages.rs b/examples/ping_pong_sync/src/messages.rs
new file mode 100644
index 0000000..2d705ec
--- /dev/null
+++ b/examples/ping_pong_sync/src/messages.rs
@@ -0,0 +1,7 @@
+use spawned_rt::sync::mpsc::Sender;
+
+#[derive(Debug, Clone)]
+pub enum Message {
+    Ping { from: Sender<Message> },
+    Pong,
+}
diff --git a/examples/ping_pong_sync/src/producer.rs b/examples/ping_pong_sync/src/producer.rs
new file mode 100644
index 0000000..500305f
--- /dev/null
+++ b/examples/ping_pong_sync/src/producer.rs
@@ -0,0 +1,32 @@
+use spawned_concurrency::sync::{self as concurrency, Process, ProcessInfo};
+use spawned_rt::sync::mpsc::Sender;
+
+use crate::messages::Message;
+
+pub struct Producer {
+    consumer: Sender<Message>,
+}
+
+impl Producer {
+    pub fn spawn_new(consumer: Sender<Message>) -> ProcessInfo<Message> {
+        Self { consumer }.spawn()
+    }
+
+    fn send_ping(&self, tx: &Sender<Message>, consumer: &Sender<Message>) {
+        let message = Message::Ping { from: tx.clone() };
+        tracing::info!("Producer sent Ping");
+        concurrency::send(consumer, message);
+    }
+}
+
+impl Process<Message> for Producer {
+    fn init(&mut self, tx: &Sender<Message>) {
+        self.send_ping(tx, &self.consumer);
+    }
+
+    fn handle(&mut self, message: Message, tx: &Sender<Message>) -> Message {
+        tracing::info!("Producer received {message:?}");
+        self.send_ping(tx, &self.consumer);
+        message
+    }
+}
diff --git a/examples/updater/src/main.rs b/examples/updater/src/main.rs
index 7a9e568..0c04d11 100644
--- a/examples/updater/src/main.rs
+++ b/examples/updater/src/main.rs
@@ -1,11 +1,7 @@
 //! Example to test a recurrent gen_server.
 //!
 //! Just activates periodically and performs an http request
-<<<<<<< HEAD
-//! 
-=======
 //!
->>>>>>> async_handlers
 
 mod messages;
 mod server;
@@ -13,28 +9,18 @@ mod server;
 use std::{thread, time::Duration};
 
 use messages::UpdaterOutMessage;
-<<<<<<< HEAD
-use server::UpdaterServer;
-=======
 use server::{UpdateServerState, UpdaterServer};
->>>>>>> async_handlers
-use spawned_concurrency::GenServer as _;
+use spawned_concurrency::r#async::GenServer as _;
 use spawned_rt as rt;
 
 fn main() {
-    rt::run(async {
-<<<<<<< HEAD
-        let mut update_server = UpdaterServer::start();
-
-        let result = UpdaterServer::check(&mut update_server, "ea".to_string()).await;
-=======
+    rt::r#async::run(async {
         let mut update_server = UpdaterServer::start(UpdateServerState {
             url: "https://httpbin.org/ip".to_string(),
             periodicity: Duration::from_millis(1000),
         });
 
         let result = UpdaterServer::check(&mut update_server).await;
->>>>>>> async_handlers
         tracing::info!("Update check done: {result:?}");
         assert_eq!(result, UpdaterOutMessage::Ok);
 
diff --git a/examples/updater/src/messages.rs b/examples/updater/src/messages.rs
index 7901b01..daa0589 100644
--- a/examples/updater/src/messages.rs
+++ b/examples/updater/src/messages.rs
@@ -1,10 +1,6 @@
 #[derive(Debug, Clone)]
 pub enum UpdaterInMessage {
-<<<<<<< HEAD
-    Check(String),
-=======
     Check,
->>>>>>> async_handlers
 }
 
 #[allow(dead_code)]
diff --git a/examples/updater/src/server.rs b/examples/updater/src/server.rs
index 2760675..087f532 100644
--- a/examples/updater/src/server.rs
+++ b/examples/updater/src/server.rs
@@ -1,27 +1,14 @@
-<<<<<<< HEAD
-use std::{collections::HashMap, time::Duration};
-=======
 use std::time::Duration;
->>>>>>> async_handlers
 
-use spawned_concurrency::{
+use spawned_concurrency::r#async::{
     CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg, send_after,
 };
-use spawned_rt::mpsc::Sender;
+use spawned_rt::r#async::mpsc::Sender;
 
 use crate::messages::{UpdaterInMessage as InMessage, UpdaterOutMessage as OutMessage};
 
 type UpdateServerHandle = GenServerHandle<UpdaterServer>;
 type UpdateServerMessage = GenServerInMsg<UpdaterServer>;
-<<<<<<< HEAD
-type UpdateServerState = HashMap<String, String>;
-
-pub struct UpdaterServer {}
-
-impl UpdaterServer {
-    pub async fn check(server: &mut UpdateServerHandle, url: String) -> OutMessage {
-        match server.cast(InMessage::Check(url)).await {
-=======
 
 #[derive(Clone)]
 pub struct UpdateServerState {
@@ -33,7 +20,6 @@ pub struct UpdaterServer {}
 impl UpdaterServer {
     pub async fn check(server: &mut UpdateServerHandle) -> OutMessage {
         match server.cast(InMessage::Check).await {
->>>>>>> async_handlers
             Ok(_) => OutMessage::Ok,
             Err(_) => OutMessage::Error,
         }
@@ -50,15 +36,7 @@ impl GenServer for UpdaterServer {
         Self {}
     }
 
-<<<<<<< HEAD
-    fn initial_state(&self) -> Self::State {
-        HashMap::new()
-    }
-
-    fn handle_call(
-=======
     async fn handle_call(
->>>>>>> async_handlers
         &mut self,
         _message: InMessage,
         _tx: &Sender<UpdateServerMessage>,
@@ -67,25 +45,6 @@ impl GenServer for UpdaterServer {
         CallResponse::Reply(OutMessage::Ok)
     }
 
-<<<<<<< HEAD
-    fn handle_cast(
-        &mut self,
-        message: InMessage,
-        tx: &Sender<UpdateServerMessage>,
-        _state: &mut Self::State,
-    ) -> CastResponse {
-        match message {
-            Self::InMsg::Check(url) => {
-                send_after(
-                    Duration::from_millis(1000),
-                    tx.clone(),
-                    InMessage::Check("url".to_string()),
-                );
-                tracing::info!("Fetching: {url:?}");
-                //let enter = futures::executor::enter();
-                let resp = futures::executor::block_on(req());
-                //drop(enter);
-=======
     async fn handle_cast(
         &mut self,
         message: InMessage,
@@ -99,7 +58,6 @@ impl GenServer for UpdaterServer {
                 tracing::info!("Fetching: {url}");
                 let resp = req(url).await;
 
->>>>>>> async_handlers
                 tracing::info!("Response: {resp:?}");
 
                 CastResponse::NoReply
@@ -108,14 +66,6 @@ impl GenServer for UpdaterServer {
     }
 }
 
-<<<<<<< HEAD
-async fn req() -> Result<String, reqwest::Error> {
-    reqwest::get("https://httpbin.org/ip")
-        .await?
-        .text()
-        .await
-=======
 async fn req(url: String) -> Result<String, reqwest::Error> {
     reqwest::get(url).await?.text().await
->>>>>>> async_handlers
 }
diff --git a/rt/src/lib.rs b/rt/src/lib.rs
index 5f383c7..b5e318e 100644
--- a/rt/src/lib.rs
+++ b/rt/src/lib.rs
@@ -10,8 +10,3 @@
 pub mod r#async;
 pub mod sync;
 mod tracing;
-
-pub use crate::sync::mpsc;
-pub use crate::sync::oneshot;
-pub use crate::sync::sleep;
-pub use crate::sync::spawn;
diff --git a/rt/src/sync/mod.rs b/rt/src/sync/mod.rs
index c07e103..24160ee 100644
--- a/rt/src/sync/mod.rs
+++ b/rt/src/sync/mod.rs
@@ -1,11 +1,11 @@
 pub mod mpsc;
 pub mod oneshot;
 
-pub use std::thread::{sleep, spawn};
+pub use std::thread::{JoinHandle, sleep, spawn};
 
 use crate::tracing::init_tracing;
 
-pub fn run(f: fn()) -> () {
+pub fn run(f: fn()) {
     init_tracing();
 
     f()
diff --git a/rt/src/sync/mpsc.rs b/rt/src/sync/mpsc.rs
index fb8fda2..aca5b22 100644
--- a/rt/src/sync/mpsc.rs
+++ b/rt/src/sync/mpsc.rs
@@ -1,3 +1,3 @@
 //! Tokio.rs reexports to prevent tokio dependencies within external code
 
-pub use std::sync::mpsc::{Receiver, Sender, channel};
+pub use std::sync::mpsc::{Receiver, SendError, Sender, channel};
diff --git a/rt/src/sync/oneshot.rs b/rt/src/sync/oneshot.rs
index 352c546..f70098c 100644
--- a/rt/src/sync/oneshot.rs
+++ b/rt/src/sync/oneshot.rs
@@ -1,3 +1,3 @@
 //! Tokio.rs reexports to prevent tokio dependencies within external code
 
-pub use crossbeam::{Receiver, Sender, crossbeam_channel as channel};
+pub use crossbeam::{Receiver, Sender, crossbeam_channel::unbounded as channel};

From 2b6ba2b86a8856aeca1535cb782d5d55670b693b Mon Sep 17 00:00:00 2001
From: Esteban Dimitroff Hodi <esteban.dimitroff@lambdaclass.com>
Date: Fri, 16 May 2025 12:39:13 -0300
Subject: [PATCH 10/15] Added sync version of updater example

---
 Cargo.lock                            | 11 ++++
 Cargo.toml                            |  1 +
 examples/updater/src/main.rs          |  4 +-
 examples/updater_sync/Cargo.toml      | 15 ++++++
 examples/updater_sync/src/main.rs     | 30 +++++++++++
 examples/updater_sync/src/messages.rs | 11 ++++
 examples/updater_sync/src/server.rs   | 72 +++++++++++++++++++++++++++
 7 files changed, 142 insertions(+), 2 deletions(-)
 create mode 100644 examples/updater_sync/Cargo.toml
 create mode 100644 examples/updater_sync/src/main.rs
 create mode 100644 examples/updater_sync/src/messages.rs
 create mode 100644 examples/updater_sync/src/server.rs

diff --git a/Cargo.lock b/Cargo.lock
index ce22125..8799d75 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1436,6 +1436,17 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "updater_sync"
+version = "0.1.0"
+dependencies = [
+ "futures",
+ "reqwest",
+ "spawned-concurrency",
+ "spawned-rt",
+ "tracing",
+]
+
 [[package]]
 name = "url"
 version = "2.5.4"
diff --git a/Cargo.toml b/Cargo.toml
index 84fa9de..cdc2048 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,6 +8,7 @@ members = [
     "examples/ping_pong",
     "examples/ping_pong_sync",
     "examples/updater",
+    "examples/updater_sync",
 ]
 
 [workspace.dependencies]
diff --git a/examples/updater/src/main.rs b/examples/updater/src/main.rs
index 0c04d11..fa63627 100644
--- a/examples/updater/src/main.rs
+++ b/examples/updater/src/main.rs
@@ -11,10 +11,10 @@ use std::{thread, time::Duration};
 use messages::UpdaterOutMessage;
 use server::{UpdateServerState, UpdaterServer};
 use spawned_concurrency::r#async::GenServer as _;
-use spawned_rt as rt;
+use spawned_rt::r#async as rt;
 
 fn main() {
-    rt::r#async::run(async {
+    rt::run(async {
         let mut update_server = UpdaterServer::start(UpdateServerState {
             url: "https://httpbin.org/ip".to_string(),
             periodicity: Duration::from_millis(1000),
diff --git a/examples/updater_sync/Cargo.toml b/examples/updater_sync/Cargo.toml
new file mode 100644
index 0000000..426637e
--- /dev/null
+++ b/examples/updater_sync/Cargo.toml
@@ -0,0 +1,15 @@
+[package]
+name = "updater_sync"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+spawned-rt = { workspace = true }
+spawned-concurrency = { workspace = true }
+tracing = { workspace = true }
+reqwest = { version = "0.11", features = ["blocking"] }
+futures = "0.3.1"
+
+[[bin]]
+name = "updater_sync"
+path = "src/main.rs"
\ No newline at end of file
diff --git a/examples/updater_sync/src/main.rs b/examples/updater_sync/src/main.rs
new file mode 100644
index 0000000..441968a
--- /dev/null
+++ b/examples/updater_sync/src/main.rs
@@ -0,0 +1,30 @@
+//! Example to test a recurrent gen_server.
+//!
+//! Just activates periodically and performs an http request
+//!
+
+mod messages;
+mod server;
+
+use std::{thread, time::Duration};
+
+use messages::UpdaterOutMessage;
+use server::{UpdateServerState, UpdaterServer};
+use spawned_concurrency::sync::GenServer as _;
+use spawned_rt::sync as rt;
+
+fn main() {
+    rt::run(|| {
+        let mut update_server = UpdaterServer::start(UpdateServerState {
+            url: "https://httpbin.org/ip".to_string(),
+            periodicity: Duration::from_millis(1000),
+        });
+
+        let result = UpdaterServer::check(&mut update_server);
+        tracing::info!("Update check done: {result:?}");
+        assert_eq!(result, UpdaterOutMessage::Ok);
+
+        // giving it some time before ending
+        thread::sleep(Duration::from_secs(10));
+    })
+}
diff --git a/examples/updater_sync/src/messages.rs b/examples/updater_sync/src/messages.rs
new file mode 100644
index 0000000..daa0589
--- /dev/null
+++ b/examples/updater_sync/src/messages.rs
@@ -0,0 +1,11 @@
+#[derive(Debug, Clone)]
+pub enum UpdaterInMessage {
+    Check,
+}
+
+#[allow(dead_code)]
+#[derive(Debug, Clone, PartialEq)]
+pub enum UpdaterOutMessage {
+    Ok,
+    Error,
+}
diff --git a/examples/updater_sync/src/server.rs b/examples/updater_sync/src/server.rs
new file mode 100644
index 0000000..95f734e
--- /dev/null
+++ b/examples/updater_sync/src/server.rs
@@ -0,0 +1,72 @@
+use std::time::Duration;
+
+use spawned_concurrency::sync::{
+    CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg, send_after,
+};
+use spawned_rt::sync::mpsc::Sender;
+
+use crate::messages::{UpdaterInMessage as InMessage, UpdaterOutMessage as OutMessage};
+
+type UpdateServerHandle = GenServerHandle<UpdaterServer>;
+type UpdateServerMessage = GenServerInMsg<UpdaterServer>;
+
+#[derive(Clone)]
+pub struct UpdateServerState {
+    pub url: String,
+    pub periodicity: Duration,
+}
+pub struct UpdaterServer {}
+
+impl UpdaterServer {
+    pub fn check(server: &mut UpdateServerHandle) -> OutMessage {
+        match server.cast(InMessage::Check) {
+            Ok(_) => OutMessage::Ok,
+            Err(_) => OutMessage::Error,
+        }
+    }
+}
+
+impl GenServer for UpdaterServer {
+    type InMsg = InMessage;
+    type OutMsg = OutMessage;
+    type Error = std::fmt::Error;
+    type State = UpdateServerState;
+
+    fn new() -> Self {
+        Self {}
+    }
+
+    fn handle_call(
+        &mut self,
+        _message: InMessage,
+        _tx: &Sender<UpdateServerMessage>,
+        _state: &mut Self::State,
+    ) -> CallResponse<Self::OutMsg> {
+        CallResponse::Reply(OutMessage::Ok)
+    }
+
+    fn handle_cast(
+        &mut self,
+        message: InMessage,
+        tx: &Sender<UpdateServerMessage>,
+        state: &mut Self::State,
+    ) -> CastResponse {
+        match message {
+            Self::InMsg::Check => {
+                send_after(state.periodicity, tx.clone(), InMessage::Check);
+                let url = state.url.clone();
+                tracing::info!("Fetching: {url}");
+                let resp = req(url);
+
+                tracing::info!("Response: {resp:?}");
+
+                CastResponse::NoReply
+            }
+        }
+    }
+}
+
+fn req(url: String) -> Result<String, reqwest::Error> {
+    let rt = spawned_rt::r#async::Runtime::new().unwrap();
+    rt.block_on(async { reqwest::get(url).await?.text().await })
+}

From c4725ec634512bd6788f68d9b071f765af08f727 Mon Sep 17 00:00:00 2001
From: Esteban Dimitroff Hodi <esteban.dimitroff@lambdaclass.com>
Date: Fri, 16 May 2025 15:22:21 -0300
Subject: [PATCH 11/15] block_on function for async usage within sync code

---
 examples/updater_sync/src/server.rs | 9 ++++-----
 rt/src/sync/mod.rs                  | 7 ++++++-
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/examples/updater_sync/src/server.rs b/examples/updater_sync/src/server.rs
index 95f734e..545dce6 100644
--- a/examples/updater_sync/src/server.rs
+++ b/examples/updater_sync/src/server.rs
@@ -3,7 +3,7 @@ use std::time::Duration;
 use spawned_concurrency::sync::{
     CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg, send_after,
 };
-use spawned_rt::sync::mpsc::Sender;
+use spawned_rt::sync::{block_on, mpsc::Sender};
 
 use crate::messages::{UpdaterInMessage as InMessage, UpdaterOutMessage as OutMessage};
 
@@ -56,7 +56,7 @@ impl GenServer for UpdaterServer {
                 send_after(state.periodicity, tx.clone(), InMessage::Check);
                 let url = state.url.clone();
                 tracing::info!("Fetching: {url}");
-                let resp = req(url);
+                let resp = block_on(req(url));
 
                 tracing::info!("Response: {resp:?}");
 
@@ -66,7 +66,6 @@ impl GenServer for UpdaterServer {
     }
 }
 
-fn req(url: String) -> Result<String, reqwest::Error> {
-    let rt = spawned_rt::r#async::Runtime::new().unwrap();
-    rt.block_on(async { reqwest::get(url).await?.text().await })
+async fn req(url: String) -> Result<String, reqwest::Error> {
+    reqwest::get(url).await?.text().await
 }
diff --git a/rt/src/sync/mod.rs b/rt/src/sync/mod.rs
index 24160ee..a7647bb 100644
--- a/rt/src/sync/mod.rs
+++ b/rt/src/sync/mod.rs
@@ -3,10 +3,15 @@ pub mod oneshot;
 
 pub use std::thread::{JoinHandle, sleep, spawn};
 
-use crate::tracing::init_tracing;
+use crate::{r#async::Runtime, tracing::init_tracing};
 
 pub fn run(f: fn()) {
     init_tracing();
 
     f()
 }
+
+pub fn block_on<F: Future>(future: F) -> F::Output {
+    let rt = Runtime::new().unwrap();
+    rt.block_on(future)
+}
\ No newline at end of file

From 91fa96ef9a8b280c26c8d06cac47ca68ab83343a Mon Sep 17 00:00:00 2001
From: Esteban Dimitroff Hodi <esteban.dimitroff@lambdaclass.com>
Date: Tue, 20 May 2025 10:59:59 -0300
Subject: [PATCH 12/15] Typo fix

---
 concurrency/src/async/gen_server.rs | 2 +-
 concurrency/src/sync/gen_server.rs  | 2 +-
 rt/src/sync/mod.rs                  | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/concurrency/src/async/gen_server.rs b/concurrency/src/async/gen_server.rs
index 22a40ca..ab41797 100644
--- a/concurrency/src/async/gen_server.rs
+++ b/concurrency/src/async/gen_server.rs
@@ -1,4 +1,4 @@
-//! GernServer trait and structs to create an abstraction similar to Erlang gen_server.
+//! GenServer trait and structs to create an abstraction similar to Erlang gen_server.
 //! See examples/name_server for a usage example.
 use futures::future::FutureExt as _;
 use spawned_rt::r#async::{self as rt, JoinHandle, mpsc, oneshot};
diff --git a/concurrency/src/sync/gen_server.rs b/concurrency/src/sync/gen_server.rs
index 3fed99f..321e59d 100644
--- a/concurrency/src/sync/gen_server.rs
+++ b/concurrency/src/sync/gen_server.rs
@@ -1,4 +1,4 @@
-//! GernServer trait and structs to create an abstraction similar to Erlang gen_server.
+//! GenServer trait and structs to create an abstraction similar to Erlang gen_server.
 //! See examples/name_server for a usage example.
 use spawned_rt::sync::{self as rt, JoinHandle, mpsc, oneshot};
 use std::{
diff --git a/rt/src/sync/mod.rs b/rt/src/sync/mod.rs
index a7647bb..9040fa7 100644
--- a/rt/src/sync/mod.rs
+++ b/rt/src/sync/mod.rs
@@ -14,4 +14,4 @@ pub fn run(f: fn()) {
 pub fn block_on<F: Future>(future: F) -> F::Output {
     let rt = Runtime::new().unwrap();
     rt.block_on(future)
-}
\ No newline at end of file
+}

From 3843b145224a6725165ffe00994801ef5f7286d5 Mon Sep 17 00:00:00 2001
From: Esteban Dimitroff Hodi <esteban.dimitroff@lambdaclass.com>
Date: Tue, 20 May 2025 18:21:00 -0300
Subject: [PATCH 13/15] Changed edition in Cargo.toml

---
 examples/bank_sync/Cargo.toml      | 2 +-
 examples/ping_pong_sync/Cargo.toml | 2 +-
 examples/updater_sync/Cargo.toml   | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/examples/bank_sync/Cargo.toml b/examples/bank_sync/Cargo.toml
index be313c7..7564f8d 100644
--- a/examples/bank_sync/Cargo.toml
+++ b/examples/bank_sync/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "bank_sync"
 version = "0.1.0"
-edition = "2024"
+edition = "2021"
 
 [dependencies]
 spawned-rt = { workspace = true }
diff --git a/examples/ping_pong_sync/Cargo.toml b/examples/ping_pong_sync/Cargo.toml
index acb1146..94c9776 100644
--- a/examples/ping_pong_sync/Cargo.toml
+++ b/examples/ping_pong_sync/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "ping_pong_sync"
 version = "0.1.0"
-edition = "2024"
+edition = "2021"
 
 [dependencies]
 spawned-rt = { workspace = true }
diff --git a/examples/updater_sync/Cargo.toml b/examples/updater_sync/Cargo.toml
index 426637e..76ae699 100644
--- a/examples/updater_sync/Cargo.toml
+++ b/examples/updater_sync/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "updater_sync"
 version = "0.1.0"
-edition = "2024"
+edition = "2021"
 
 [dependencies]
 spawned-rt = { workspace = true }

From 0e89d5214ebf14013c24ccde73be4b87fcfce7b4 Mon Sep 17 00:00:00 2001
From: Esteban Dimitroff Hodi <esteban.dimitroff@lambdaclass.com>
Date: Tue, 27 May 2025 09:40:34 -0300
Subject: [PATCH 14/15] Renamed async/sync for tasks/threads

---
 Cargo.lock                                            |  6 +++---
 Cargo.toml                                            |  6 +++---
 concurrency/src/lib.rs                                |  4 ++--
 concurrency/src/sync/error.rs                         | 11 -----------
 concurrency/src/tasks/error.rs                        | 11 +++++++++++
 concurrency/src/{async => tasks}/gen_server.rs        |  2 +-
 concurrency/src/{async => tasks}/mod.rs               |  0
 concurrency/src/{async => tasks}/process.rs           |  2 +-
 concurrency/src/{async => tasks}/time.rs              |  2 +-
 concurrency/src/{async => threads}/error.rs           |  4 ++--
 concurrency/src/{sync => threads}/gen_server.rs       |  2 +-
 concurrency/src/{sync => threads}/mod.rs              |  0
 concurrency/src/{sync => threads}/process.rs          |  2 +-
 concurrency/src/{sync => threads}/time.rs             |  2 +-
 examples/bank/src/main.rs                             |  4 ++--
 examples/bank/src/server.rs                           |  4 ++--
 examples/{bank_sync => bank_threads}/Cargo.toml       |  4 ++--
 examples/{bank_sync => bank_threads}/src/main.rs      |  4 ++--
 examples/{bank_sync => bank_threads}/src/messages.rs  |  0
 examples/{bank_sync => bank_threads}/src/server.rs    |  4 ++--
 examples/name_server/src/main.rs                      |  4 ++--
 examples/name_server/src/server.rs                    |  4 ++--
 examples/name_server_with_error/src/main.rs           |  4 ++--
 examples/name_server_with_error/src/server.rs         |  4 ++--
 examples/ping_pong/src/consumer.rs                    |  4 ++--
 examples/ping_pong/src/main.rs                        |  2 +-
 examples/ping_pong/src/messages.rs                    |  2 +-
 examples/ping_pong/src/producer.rs                    |  4 ++--
 .../{ping_pong_sync => ping_pong_threads}/Cargo.toml  |  4 ++--
 .../src/consumer.rs                                   |  4 ++--
 .../{ping_pong_sync => ping_pong_threads}/src/main.rs |  2 +-
 .../src/messages.rs                                   |  2 +-
 .../src/producer.rs                                   |  4 ++--
 examples/updater/src/main.rs                          |  4 ++--
 examples/updater/src/server.rs                        |  4 ++--
 examples/{updater_sync => updater_threads}/Cargo.toml |  4 ++--
 .../{updater_sync => updater_threads}/src/main.rs     |  4 ++--
 .../{updater_sync => updater_threads}/src/messages.rs |  0
 .../{updater_sync => updater_threads}/src/server.rs   |  4 ++--
 rt/src/lib.rs                                         |  4 ++--
 rt/src/{async => tasks}/mod.rs                        |  8 ++++----
 rt/src/{async => tasks}/tokio/mod.rs                  |  0
 rt/src/{async => tasks}/tokio/mpsc.rs                 |  0
 rt/src/{async => tasks}/tokio/oneshot.rs              |  0
 rt/src/{sync => threads}/mod.rs                       |  2 +-
 rt/src/{sync => threads}/mpsc.rs                      |  0
 rt/src/{sync => threads}/oneshot.rs                   |  0
 47 files changed, 76 insertions(+), 76 deletions(-)
 delete mode 100644 concurrency/src/sync/error.rs
 create mode 100644 concurrency/src/tasks/error.rs
 rename concurrency/src/{async => tasks}/gen_server.rs (98%)
 rename concurrency/src/{async => tasks}/mod.rs (100%)
 rename concurrency/src/{async => tasks}/process.rs (97%)
 rename concurrency/src/{async => tasks}/time.rs (87%)
 rename concurrency/src/{async => threads}/error.rs (51%)
 rename concurrency/src/{sync => threads}/gen_server.rs (98%)
 rename concurrency/src/{sync => threads}/mod.rs (100%)
 rename concurrency/src/{sync => threads}/process.rs (96%)
 rename concurrency/src/{sync => threads}/time.rs (87%)
 rename examples/{bank_sync => bank_threads}/Cargo.toml (81%)
 rename examples/{bank_sync => bank_threads}/src/main.rs (97%)
 rename examples/{bank_sync => bank_threads}/src/messages.rs (100%)
 rename examples/{bank_sync => bank_threads}/src/server.rs (97%)
 rename examples/{ping_pong_sync => ping_pong_threads}/Cargo.toml (78%)
 rename examples/{ping_pong_sync => ping_pong_threads}/src/consumer.rs (83%)
 rename examples/{ping_pong_sync => ping_pong_threads}/src/main.rs (97%)
 rename examples/{ping_pong_sync => ping_pong_threads}/src/messages.rs (70%)
 rename examples/{ping_pong_sync => ping_pong_threads}/src/producer.rs (87%)
 rename examples/{updater_sync => updater_threads}/Cargo.toml (84%)
 rename examples/{updater_sync => updater_threads}/src/main.rs (90%)
 rename examples/{updater_sync => updater_threads}/src/messages.rs (100%)
 rename examples/{updater_sync => updater_threads}/src/server.rs (95%)
 rename rt/src/{async => tasks}/mod.rs (79%)
 rename rt/src/{async => tasks}/tokio/mod.rs (100%)
 rename rt/src/{async => tasks}/tokio/mpsc.rs (100%)
 rename rt/src/{async => tasks}/tokio/oneshot.rs (100%)
 rename rt/src/{sync => threads}/mod.rs (83%)
 rename rt/src/{sync => threads}/mpsc.rs (100%)
 rename rt/src/{sync => threads}/oneshot.rs (100%)

diff --git a/Cargo.lock b/Cargo.lock
index bf734d2..c4bb721 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -57,7 +57,7 @@ dependencies = [
 ]
 
 [[package]]
-name = "bank_sync"
+name = "bank_threads"
 version = "0.1.0"
 dependencies = [
  "spawned-concurrency",
@@ -875,7 +875,7 @@ dependencies = [
 ]
 
 [[package]]
-name = "ping_pong_sync"
+name = "ping_pong_threads"
 version = "0.1.0"
 dependencies = [
  "spawned-concurrency",
@@ -1437,7 +1437,7 @@ dependencies = [
 ]
 
 [[package]]
-name = "updater_sync"
+name = "updater_threads"
 version = "0.1.0"
 dependencies = [
  "futures",
diff --git a/Cargo.toml b/Cargo.toml
index cdc2048..a6f68bf 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,13 +2,13 @@
 members = [
     "rt",
     "examples/bank",
-    "examples/bank_sync",
+    "examples/bank_threads",
     "examples/name_server",
     "examples/name_server_with_error",
     "examples/ping_pong",
-    "examples/ping_pong_sync",
+    "examples/ping_pong_threads",
     "examples/updater",
-    "examples/updater_sync",
+    "examples/updater_threads",
 ]
 
 [workspace.dependencies]
diff --git a/concurrency/src/lib.rs b/concurrency/src/lib.rs
index 3c4f575..ca158a2 100644
--- a/concurrency/src/lib.rs
+++ b/concurrency/src/lib.rs
@@ -1,5 +1,5 @@
 //! λ-kit concurrency
 //! Some basic traits and structs to implement À-la-Erlang concurrent code.
 
-pub mod r#async;
-pub mod sync;
+pub mod tasks;
+pub mod threads;
diff --git a/concurrency/src/sync/error.rs b/concurrency/src/sync/error.rs
deleted file mode 100644
index 8e4b3b7..0000000
--- a/concurrency/src/sync/error.rs
+++ /dev/null
@@ -1,11 +0,0 @@
-#[derive(Debug)]
-pub enum GenServerError {
-    CallbackError,
-    ServerError,
-}
-
-impl<T> From<spawned_rt::sync::mpsc::SendError<T>> for GenServerError {
-    fn from(_value: spawned_rt::sync::mpsc::SendError<T>) -> Self {
-        Self::ServerError
-    }
-}
diff --git a/concurrency/src/tasks/error.rs b/concurrency/src/tasks/error.rs
new file mode 100644
index 0000000..05653fa
--- /dev/null
+++ b/concurrency/src/tasks/error.rs
@@ -0,0 +1,11 @@
+#[derive(Debug)]
+pub enum GenServerError {
+    CallbackError,
+    ServerError,
+}
+
+impl<T> From<spawned_rt::tasks::mpsc::SendError<T>> for GenServerError {
+    fn from(_value: spawned_rt::tasks::mpsc::SendError<T>) -> Self {
+        Self::ServerError
+    }
+}
diff --git a/concurrency/src/async/gen_server.rs b/concurrency/src/tasks/gen_server.rs
similarity index 98%
rename from concurrency/src/async/gen_server.rs
rename to concurrency/src/tasks/gen_server.rs
index 0de60bb..1723d3c 100644
--- a/concurrency/src/async/gen_server.rs
+++ b/concurrency/src/tasks/gen_server.rs
@@ -1,7 +1,7 @@
 //! GenServer trait and structs to create an abstraction similar to Erlang gen_server.
 //! See examples/name_server for a usage example.
 use futures::future::FutureExt as _;
-use spawned_rt::r#async::{self as rt, mpsc, oneshot, JoinHandle};
+use spawned_rt::tasks::{self as rt, mpsc, oneshot, JoinHandle};
 use std::{fmt::Debug, future::Future, panic::AssertUnwindSafe};
 
 use super::error::GenServerError;
diff --git a/concurrency/src/async/mod.rs b/concurrency/src/tasks/mod.rs
similarity index 100%
rename from concurrency/src/async/mod.rs
rename to concurrency/src/tasks/mod.rs
diff --git a/concurrency/src/async/process.rs b/concurrency/src/tasks/process.rs
similarity index 97%
rename from concurrency/src/async/process.rs
rename to concurrency/src/tasks/process.rs
index cd5d222..b623d2b 100644
--- a/concurrency/src/async/process.rs
+++ b/concurrency/src/tasks/process.rs
@@ -1,7 +1,7 @@
 //! Process trait and struct to create a process abstraction similar to Erlang processes.
 //! See examples/ping_pong for a usage example.
 
-use spawned_rt::r#async::{self as rt, mpsc, JoinHandle};
+use spawned_rt::tasks::{self as rt, mpsc, JoinHandle};
 use std::future::Future;
 
 #[derive(Debug)]
diff --git a/concurrency/src/async/time.rs b/concurrency/src/tasks/time.rs
similarity index 87%
rename from concurrency/src/async/time.rs
rename to concurrency/src/tasks/time.rs
index 07ceee3..79752c8 100644
--- a/concurrency/src/async/time.rs
+++ b/concurrency/src/tasks/time.rs
@@ -1,6 +1,6 @@
 use std::time::Duration;
 
-use spawned_rt::r#async::{self as rt, mpsc::Sender, JoinHandle};
+use spawned_rt::tasks::{self as rt, mpsc::Sender, JoinHandle};
 
 use super::{GenServer, GenServerInMsg};
 
diff --git a/concurrency/src/async/error.rs b/concurrency/src/threads/error.rs
similarity index 51%
rename from concurrency/src/async/error.rs
rename to concurrency/src/threads/error.rs
index b2ceff4..735e37e 100644
--- a/concurrency/src/async/error.rs
+++ b/concurrency/src/threads/error.rs
@@ -4,8 +4,8 @@ pub enum GenServerError {
     ServerError,
 }
 
-impl<T> From<spawned_rt::r#async::mpsc::SendError<T>> for GenServerError {
-    fn from(_value: spawned_rt::r#async::mpsc::SendError<T>) -> Self {
+impl<T> From<spawned_rt::threads::mpsc::SendError<T>> for GenServerError {
+    fn from(_value: spawned_rt::threads::mpsc::SendError<T>) -> Self {
         Self::ServerError
     }
 }
diff --git a/concurrency/src/sync/gen_server.rs b/concurrency/src/threads/gen_server.rs
similarity index 98%
rename from concurrency/src/sync/gen_server.rs
rename to concurrency/src/threads/gen_server.rs
index d1d72d7..e759a0d 100644
--- a/concurrency/src/sync/gen_server.rs
+++ b/concurrency/src/threads/gen_server.rs
@@ -1,6 +1,6 @@
 //! GenServer trait and structs to create an abstraction similar to Erlang gen_server.
 //! See examples/name_server for a usage example.
-use spawned_rt::sync::{self as rt, mpsc, oneshot, JoinHandle};
+use spawned_rt::threads::{self as rt, mpsc, oneshot, JoinHandle};
 use std::{
     fmt::Debug,
     panic::{catch_unwind, AssertUnwindSafe},
diff --git a/concurrency/src/sync/mod.rs b/concurrency/src/threads/mod.rs
similarity index 100%
rename from concurrency/src/sync/mod.rs
rename to concurrency/src/threads/mod.rs
diff --git a/concurrency/src/sync/process.rs b/concurrency/src/threads/process.rs
similarity index 96%
rename from concurrency/src/sync/process.rs
rename to concurrency/src/threads/process.rs
index 6919ea6..3dfd87d 100644
--- a/concurrency/src/sync/process.rs
+++ b/concurrency/src/threads/process.rs
@@ -1,7 +1,7 @@
 //! Process trait and struct to create a process abstraction similar to Erlang processes.
 //! See examples/ping_pong for a usage example.
 
-use spawned_rt::sync::{self as rt, mpsc, JoinHandle};
+use spawned_rt::threads::{self as rt, mpsc, JoinHandle};
 
 #[derive(Debug)]
 pub struct ProcessInfo<T> {
diff --git a/concurrency/src/sync/time.rs b/concurrency/src/threads/time.rs
similarity index 87%
rename from concurrency/src/sync/time.rs
rename to concurrency/src/threads/time.rs
index 861f7e1..034295f 100644
--- a/concurrency/src/sync/time.rs
+++ b/concurrency/src/threads/time.rs
@@ -1,6 +1,6 @@
 use std::time::Duration;
 
-use spawned_rt::sync::{self as rt, mpsc::Sender, JoinHandle};
+use spawned_rt::threads::{self as rt, mpsc::Sender, JoinHandle};
 
 use super::gen_server::{GenServer, GenServerInMsg};
 
diff --git a/examples/bank/src/main.rs b/examples/bank/src/main.rs
index 3cfa634..90f97eb 100644
--- a/examples/bank/src/main.rs
+++ b/examples/bank/src/main.rs
@@ -26,8 +26,8 @@ use std::collections::HashMap;
 
 use messages::{BankError, BankOutMessage};
 use server::Bank;
-use spawned_concurrency::r#async::GenServer as _;
-use spawned_rt::r#async as rt;
+use spawned_concurrency::tasks::GenServer as _;
+use spawned_rt::tasks as rt;
 
 fn main() {
     rt::run(async {
diff --git a/examples/bank/src/server.rs b/examples/bank/src/server.rs
index dacd92e..3218e00 100644
--- a/examples/bank/src/server.rs
+++ b/examples/bank/src/server.rs
@@ -1,9 +1,9 @@
 use std::collections::HashMap;
 
-use spawned_concurrency::r#async::{
+use spawned_concurrency::tasks::{
     CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg,
 };
-use spawned_rt::r#async::mpsc::Sender;
+use spawned_rt::tasks::mpsc::Sender;
 
 use crate::messages::{BankError, BankInMessage as InMessage, BankOutMessage as OutMessage};
 
diff --git a/examples/bank_sync/Cargo.toml b/examples/bank_threads/Cargo.toml
similarity index 81%
rename from examples/bank_sync/Cargo.toml
rename to examples/bank_threads/Cargo.toml
index 7564f8d..0f4f4e0 100644
--- a/examples/bank_sync/Cargo.toml
+++ b/examples/bank_threads/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-name = "bank_sync"
+name = "bank_threads"
 version = "0.1.0"
 edition = "2021"
 
@@ -9,5 +9,5 @@ spawned-concurrency = { workspace = true }
 tracing = { workspace = true }
 
 [[bin]]
-name = "bank_sync"
+name = "bank_threads"
 path = "src/main.rs"
\ No newline at end of file
diff --git a/examples/bank_sync/src/main.rs b/examples/bank_threads/src/main.rs
similarity index 97%
rename from examples/bank_sync/src/main.rs
rename to examples/bank_threads/src/main.rs
index cfc4d57..c04a6ac 100644
--- a/examples/bank_sync/src/main.rs
+++ b/examples/bank_threads/src/main.rs
@@ -26,8 +26,8 @@ use std::collections::HashMap;
 
 use messages::{BankError, BankOutMessage};
 use server::Bank;
-use spawned_concurrency::sync::GenServer as _;
-use spawned_rt::sync as rt;
+use spawned_concurrency::threads::GenServer as _;
+use spawned_rt::threads as rt;
 
 fn main() {
     rt::run(|| {
diff --git a/examples/bank_sync/src/messages.rs b/examples/bank_threads/src/messages.rs
similarity index 100%
rename from examples/bank_sync/src/messages.rs
rename to examples/bank_threads/src/messages.rs
diff --git a/examples/bank_sync/src/server.rs b/examples/bank_threads/src/server.rs
similarity index 97%
rename from examples/bank_sync/src/server.rs
rename to examples/bank_threads/src/server.rs
index 6a5449a..8faf775 100644
--- a/examples/bank_sync/src/server.rs
+++ b/examples/bank_threads/src/server.rs
@@ -1,9 +1,9 @@
 use std::collections::HashMap;
 
-use spawned_concurrency::sync::{
+use spawned_concurrency::threads::{
     CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg,
 };
-use spawned_rt::sync::mpsc::Sender;
+use spawned_rt::threads::mpsc::Sender;
 
 use crate::messages::{BankError, BankInMessage as InMessage, BankOutMessage as OutMessage};
 
diff --git a/examples/name_server/src/main.rs b/examples/name_server/src/main.rs
index e021952..713d41c 100644
--- a/examples/name_server/src/main.rs
+++ b/examples/name_server/src/main.rs
@@ -18,8 +18,8 @@ use std::collections::HashMap;
 
 use messages::NameServerOutMessage;
 use server::NameServer;
-use spawned_concurrency::r#async::GenServer as _;
-use spawned_rt::r#async as rt;
+use spawned_concurrency::tasks::GenServer as _;
+use spawned_rt::tasks as rt;
 
 fn main() {
     rt::run(async {
diff --git a/examples/name_server/src/server.rs b/examples/name_server/src/server.rs
index 5d4a9a3..5e77401 100644
--- a/examples/name_server/src/server.rs
+++ b/examples/name_server/src/server.rs
@@ -1,9 +1,9 @@
 use std::collections::HashMap;
 
-use spawned_concurrency::r#async::{
+use spawned_concurrency::tasks::{
     CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg,
 };
-use spawned_rt::r#async::mpsc::Sender;
+use spawned_rt::tasks::mpsc::Sender;
 
 use crate::messages::{NameServerInMessage as InMessage, NameServerOutMessage as OutMessage};
 
diff --git a/examples/name_server_with_error/src/main.rs b/examples/name_server_with_error/src/main.rs
index 9fa5099..7cc5f67 100644
--- a/examples/name_server_with_error/src/main.rs
+++ b/examples/name_server_with_error/src/main.rs
@@ -18,8 +18,8 @@ use std::collections::HashMap;
 
 use messages::NameServerOutMessage;
 use server::NameServer;
-use spawned_concurrency::r#async::GenServer as _;
-use spawned_rt::r#async as rt;
+use spawned_concurrency::tasks::GenServer as _;
+use spawned_rt::tasks as rt;
 
 fn main() {
     rt::run(async {
diff --git a/examples/name_server_with_error/src/server.rs b/examples/name_server_with_error/src/server.rs
index b6c595d..c72028d 100644
--- a/examples/name_server_with_error/src/server.rs
+++ b/examples/name_server_with_error/src/server.rs
@@ -1,9 +1,9 @@
 use std::collections::HashMap;
 
-use spawned_concurrency::r#async::{
+use spawned_concurrency::tasks::{
     CallResponse, CastResponse, GenServer, GenServerError, GenServerHandle, GenServerInMsg,
 };
-use spawned_rt::r#async::mpsc::Sender;
+use spawned_rt::tasks::mpsc::Sender;
 
 use crate::messages::{NameServerInMessage as InMessage, NameServerOutMessage as OutMessage};
 
diff --git a/examples/ping_pong/src/consumer.rs b/examples/ping_pong/src/consumer.rs
index 06609d3..8ead269 100644
--- a/examples/ping_pong/src/consumer.rs
+++ b/examples/ping_pong/src/consumer.rs
@@ -1,5 +1,5 @@
-use spawned_concurrency::r#async::{self as concurrency, Process, ProcessInfo};
-use spawned_rt::r#async::mpsc::Sender;
+use spawned_concurrency::tasks::{self as concurrency, Process, ProcessInfo};
+use spawned_rt::tasks::mpsc::Sender;
 
 use crate::messages::Message;
 
diff --git a/examples/ping_pong/src/main.rs b/examples/ping_pong/src/main.rs
index 2cca61d..1b1599b 100644
--- a/examples/ping_pong/src/main.rs
+++ b/examples/ping_pong/src/main.rs
@@ -41,7 +41,7 @@ use std::{thread, time::Duration};
 
 use consumer::Consumer;
 use producer::Producer;
-use spawned_rt::r#async as rt;
+use spawned_rt::tasks as rt;
 
 fn main() {
     rt::run(async {
diff --git a/examples/ping_pong/src/messages.rs b/examples/ping_pong/src/messages.rs
index e7a6a58..a22ae6c 100644
--- a/examples/ping_pong/src/messages.rs
+++ b/examples/ping_pong/src/messages.rs
@@ -1,4 +1,4 @@
-use spawned_rt::r#async::mpsc::Sender;
+use spawned_rt::tasks::mpsc::Sender;
 
 #[derive(Debug, Clone)]
 pub enum Message {
diff --git a/examples/ping_pong/src/producer.rs b/examples/ping_pong/src/producer.rs
index ac888d4..71829a1 100644
--- a/examples/ping_pong/src/producer.rs
+++ b/examples/ping_pong/src/producer.rs
@@ -1,5 +1,5 @@
-use spawned_concurrency::r#async::{self as concurrency, Process, ProcessInfo};
-use spawned_rt::r#async::mpsc::Sender;
+use spawned_concurrency::tasks::{self as concurrency, Process, ProcessInfo};
+use spawned_rt::tasks::mpsc::Sender;
 
 use crate::messages::Message;
 
diff --git a/examples/ping_pong_sync/Cargo.toml b/examples/ping_pong_threads/Cargo.toml
similarity index 78%
rename from examples/ping_pong_sync/Cargo.toml
rename to examples/ping_pong_threads/Cargo.toml
index 94c9776..fb2b28a 100644
--- a/examples/ping_pong_sync/Cargo.toml
+++ b/examples/ping_pong_threads/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-name = "ping_pong_sync"
+name = "ping_pong_threads"
 version = "0.1.0"
 edition = "2021"
 
@@ -9,5 +9,5 @@ spawned-concurrency = { workspace = true }
 tracing = { workspace = true }
 
 [[bin]]
-name = "ping_pong_sync"
+name = "ping_pong_threads"
 path = "src/main.rs"
\ No newline at end of file
diff --git a/examples/ping_pong_sync/src/consumer.rs b/examples/ping_pong_threads/src/consumer.rs
similarity index 83%
rename from examples/ping_pong_sync/src/consumer.rs
rename to examples/ping_pong_threads/src/consumer.rs
index 7e10bd0..44777c4 100644
--- a/examples/ping_pong_sync/src/consumer.rs
+++ b/examples/ping_pong_threads/src/consumer.rs
@@ -1,5 +1,5 @@
-use spawned_concurrency::sync::{self as concurrency, Process, ProcessInfo};
-use spawned_rt::sync::mpsc::Sender;
+use spawned_concurrency::threads::{self as concurrency, Process, ProcessInfo};
+use spawned_rt::threads::mpsc::Sender;
 
 use crate::messages::Message;
 
diff --git a/examples/ping_pong_sync/src/main.rs b/examples/ping_pong_threads/src/main.rs
similarity index 97%
rename from examples/ping_pong_sync/src/main.rs
rename to examples/ping_pong_threads/src/main.rs
index 99c0987..73fc4d6 100644
--- a/examples/ping_pong_sync/src/main.rs
+++ b/examples/ping_pong_threads/src/main.rs
@@ -41,7 +41,7 @@ use std::{thread, time::Duration};
 
 use consumer::Consumer;
 use producer::Producer;
-use spawned_rt::sync as rt;
+use spawned_rt::threads as rt;
 
 fn main() {
     rt::run(|| {
diff --git a/examples/ping_pong_sync/src/messages.rs b/examples/ping_pong_threads/src/messages.rs
similarity index 70%
rename from examples/ping_pong_sync/src/messages.rs
rename to examples/ping_pong_threads/src/messages.rs
index 2d705ec..e8a07ef 100644
--- a/examples/ping_pong_sync/src/messages.rs
+++ b/examples/ping_pong_threads/src/messages.rs
@@ -1,4 +1,4 @@
-use spawned_rt::sync::mpsc::Sender;
+use spawned_rt::threads::mpsc::Sender;
 
 #[derive(Debug, Clone)]
 pub enum Message {
diff --git a/examples/ping_pong_sync/src/producer.rs b/examples/ping_pong_threads/src/producer.rs
similarity index 87%
rename from examples/ping_pong_sync/src/producer.rs
rename to examples/ping_pong_threads/src/producer.rs
index 500305f..01dd564 100644
--- a/examples/ping_pong_sync/src/producer.rs
+++ b/examples/ping_pong_threads/src/producer.rs
@@ -1,5 +1,5 @@
-use spawned_concurrency::sync::{self as concurrency, Process, ProcessInfo};
-use spawned_rt::sync::mpsc::Sender;
+use spawned_concurrency::threads::{self as concurrency, Process, ProcessInfo};
+use spawned_rt::threads::mpsc::Sender;
 
 use crate::messages::Message;
 
diff --git a/examples/updater/src/main.rs b/examples/updater/src/main.rs
index fa63627..5119b9e 100644
--- a/examples/updater/src/main.rs
+++ b/examples/updater/src/main.rs
@@ -10,8 +10,8 @@ use std::{thread, time::Duration};
 
 use messages::UpdaterOutMessage;
 use server::{UpdateServerState, UpdaterServer};
-use spawned_concurrency::r#async::GenServer as _;
-use spawned_rt::r#async as rt;
+use spawned_concurrency::tasks::GenServer as _;
+use spawned_rt::tasks as rt;
 
 fn main() {
     rt::run(async {
diff --git a/examples/updater/src/server.rs b/examples/updater/src/server.rs
index d530497..c600ed9 100644
--- a/examples/updater/src/server.rs
+++ b/examples/updater/src/server.rs
@@ -1,9 +1,9 @@
 use std::time::Duration;
 
-use spawned_concurrency::r#async::{
+use spawned_concurrency::tasks::{
     send_after, CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg,
 };
-use spawned_rt::r#async::mpsc::Sender;
+use spawned_rt::tasks::mpsc::Sender;
 
 use crate::messages::{UpdaterInMessage as InMessage, UpdaterOutMessage as OutMessage};
 
diff --git a/examples/updater_sync/Cargo.toml b/examples/updater_threads/Cargo.toml
similarity index 84%
rename from examples/updater_sync/Cargo.toml
rename to examples/updater_threads/Cargo.toml
index 76ae699..7266750 100644
--- a/examples/updater_sync/Cargo.toml
+++ b/examples/updater_threads/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-name = "updater_sync"
+name = "updater_threads"
 version = "0.1.0"
 edition = "2021"
 
@@ -11,5 +11,5 @@ reqwest = { version = "0.11", features = ["blocking"] }
 futures = "0.3.1"
 
 [[bin]]
-name = "updater_sync"
+name = "updater_threads"
 path = "src/main.rs"
\ No newline at end of file
diff --git a/examples/updater_sync/src/main.rs b/examples/updater_threads/src/main.rs
similarity index 90%
rename from examples/updater_sync/src/main.rs
rename to examples/updater_threads/src/main.rs
index 441968a..64236be 100644
--- a/examples/updater_sync/src/main.rs
+++ b/examples/updater_threads/src/main.rs
@@ -10,8 +10,8 @@ use std::{thread, time::Duration};
 
 use messages::UpdaterOutMessage;
 use server::{UpdateServerState, UpdaterServer};
-use spawned_concurrency::sync::GenServer as _;
-use spawned_rt::sync as rt;
+use spawned_concurrency::threads::GenServer as _;
+use spawned_rt::threads as rt;
 
 fn main() {
     rt::run(|| {
diff --git a/examples/updater_sync/src/messages.rs b/examples/updater_threads/src/messages.rs
similarity index 100%
rename from examples/updater_sync/src/messages.rs
rename to examples/updater_threads/src/messages.rs
diff --git a/examples/updater_sync/src/server.rs b/examples/updater_threads/src/server.rs
similarity index 95%
rename from examples/updater_sync/src/server.rs
rename to examples/updater_threads/src/server.rs
index 48bbfa3..cbd9643 100644
--- a/examples/updater_sync/src/server.rs
+++ b/examples/updater_threads/src/server.rs
@@ -1,9 +1,9 @@
 use std::time::Duration;
 
-use spawned_concurrency::sync::{
+use spawned_concurrency::threads::{
     send_after, CallResponse, CastResponse, GenServer, GenServerHandle, GenServerInMsg,
 };
-use spawned_rt::sync::{block_on, mpsc::Sender};
+use spawned_rt::threads::{block_on, mpsc::Sender};
 
 use crate::messages::{UpdaterInMessage as InMessage, UpdaterOutMessage as OutMessage};
 
diff --git a/rt/src/lib.rs b/rt/src/lib.rs
index b5e318e..dc56e81 100644
--- a/rt/src/lib.rs
+++ b/rt/src/lib.rs
@@ -7,6 +7,6 @@
 //! Currently, only a very limited set of tokio functionality is reexported. We may want to
 //! extend this functionality as needed.
 
-pub mod r#async;
-pub mod sync;
+pub mod tasks;
+pub mod threads;
 mod tracing;
diff --git a/rt/src/async/mod.rs b/rt/src/tasks/mod.rs
similarity index 79%
rename from rt/src/async/mod.rs
rename to rt/src/tasks/mod.rs
index 2a4f974..5cb9a41 100644
--- a/rt/src/async/mod.rs
+++ b/rt/src/tasks/mod.rs
@@ -11,10 +11,10 @@ mod tokio;
 
 use crate::tracing::init_tracing;
 
-pub use crate::r#async::tokio::mpsc;
-pub use crate::r#async::tokio::oneshot;
-pub use crate::r#async::tokio::sleep;
-pub use crate::r#async::tokio::{spawn, JoinHandle, Runtime};
+pub use crate::tasks::tokio::mpsc;
+pub use crate::tasks::tokio::oneshot;
+pub use crate::tasks::tokio::sleep;
+pub use crate::tasks::tokio::{spawn, JoinHandle, Runtime};
 use std::future::Future;
 
 pub fn run<F: Future>(future: F) -> F::Output {
diff --git a/rt/src/async/tokio/mod.rs b/rt/src/tasks/tokio/mod.rs
similarity index 100%
rename from rt/src/async/tokio/mod.rs
rename to rt/src/tasks/tokio/mod.rs
diff --git a/rt/src/async/tokio/mpsc.rs b/rt/src/tasks/tokio/mpsc.rs
similarity index 100%
rename from rt/src/async/tokio/mpsc.rs
rename to rt/src/tasks/tokio/mpsc.rs
diff --git a/rt/src/async/tokio/oneshot.rs b/rt/src/tasks/tokio/oneshot.rs
similarity index 100%
rename from rt/src/async/tokio/oneshot.rs
rename to rt/src/tasks/tokio/oneshot.rs
diff --git a/rt/src/sync/mod.rs b/rt/src/threads/mod.rs
similarity index 83%
rename from rt/src/sync/mod.rs
rename to rt/src/threads/mod.rs
index 30c0217..d7c8f7d 100644
--- a/rt/src/sync/mod.rs
+++ b/rt/src/threads/mod.rs
@@ -6,7 +6,7 @@ pub use std::{
     thread::{sleep, spawn, JoinHandle},
 };
 
-use crate::{r#async::Runtime, tracing::init_tracing};
+use crate::{tasks::Runtime, tracing::init_tracing};
 
 pub fn run(f: fn()) {
     init_tracing();
diff --git a/rt/src/sync/mpsc.rs b/rt/src/threads/mpsc.rs
similarity index 100%
rename from rt/src/sync/mpsc.rs
rename to rt/src/threads/mpsc.rs
diff --git a/rt/src/sync/oneshot.rs b/rt/src/threads/oneshot.rs
similarity index 100%
rename from rt/src/sync/oneshot.rs
rename to rt/src/threads/oneshot.rs

From fbf2ef4ac12080fcfe719c8b5049ca90a1110227 Mon Sep 17 00:00:00 2001
From: Esteban Dimitroff Hodi <esteban.dimitroff@lambdaclass.com>
Date: Tue, 27 May 2025 11:48:23 -0300
Subject: [PATCH 15/15] Modules documentation and README improvements

---
 README.md                      |  9 ++++++++-
 concurrency/README.md          |  4 ++++
 concurrency/src/lib.rs         |  4 ++--
 concurrency/src/tasks/mod.rs   |  4 ++--
 concurrency/src/threads/mod.rs |  4 ++--
 examples/README.md             | 12 ++++++++----
 rt/src/threads/mod.rs          |  2 ++
 rt/src/threads/mpsc.rs         |  2 +-
 rt/src/threads/oneshot.rs      |  2 +-
 9 files changed, 30 insertions(+), 13 deletions(-)

diff --git a/README.md b/README.md
index 9037298..74cc3ae 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # Spawned
-Simple library for concurrent Rust.
+Library for concurrent Rust.
 
 # Goals:
 
@@ -7,10 +7,17 @@ Simple library for concurrent Rust.
 - Set coding guidelines to apply along LambdaClass repositories and codebase.
 - Starting point to ideate what we want for Concrete.
 
+# Versions:
+
+Two versions exist in their own submodules:
+- threads: no use of async/await. Just IO threads code.
+- tasks: a runtime is required to run async/await code. The runtime is selected in `spawned_rt::tasks` module that abstracts it.
+
 # Inspiration:
 
 - [Erlang](https://www.erlang.org/)
 - [Commonware.xyz](https://commonware.xyz)
 - [Ractor](https://slawlor.github.io/ractor/)
+- [Actors with Tokio](https://ryhl.io/blog/actors-with-tokio/)
 - [Vale.dev](https://vale.dev/)
 - [Gleam](https://gleam.run/)
\ No newline at end of file
diff --git a/concurrency/README.md b/concurrency/README.md
index ff74e4d..ef8799e 100644
--- a/concurrency/README.md
+++ b/concurrency/README.md
@@ -1,3 +1,7 @@
 # Spawned concurrency
 Some basic traits and structs to implement à-la-Erlang concurrent code.
 
+Currently two versions:
+
+- threads: no use of async/await. Just IO threads code
+- tasks: a runtime is required to run async/await code. It uses `spawned_rt::tasks` module that abstracts the runtime.
diff --git a/concurrency/src/lib.rs b/concurrency/src/lib.rs
index ca158a2..28c3ee2 100644
--- a/concurrency/src/lib.rs
+++ b/concurrency/src/lib.rs
@@ -1,5 +1,5 @@
-//! λ-kit concurrency
-//! Some basic traits and structs to implement À-la-Erlang concurrent code.
+//! spawned concurrency
+//! Some basic traits and structs to implement concurrent code à-la-Erlang.
 
 pub mod tasks;
 pub mod threads;
diff --git a/concurrency/src/tasks/mod.rs b/concurrency/src/tasks/mod.rs
index 38a3174..93bcedb 100644
--- a/concurrency/src/tasks/mod.rs
+++ b/concurrency/src/tasks/mod.rs
@@ -1,5 +1,5 @@
-//! λ-kit concurrency
-//! Some basic traits and structs to implement À-la-Erlang concurrent code.
+//! spawned concurrency
+//! Runtime tasks-based traits and structs to implement concurrent code à-la-Erlang.
 
 mod error;
 mod gen_server;
diff --git a/concurrency/src/threads/mod.rs b/concurrency/src/threads/mod.rs
index e826566..858dd52 100644
--- a/concurrency/src/threads/mod.rs
+++ b/concurrency/src/threads/mod.rs
@@ -1,5 +1,5 @@
-//! λ-kit concurrency
-//! Some basic traits and structs to implement À-la-Erlang concurrent code.
+//! spawned concurrency
+//! IO threads-based traits and structs to implement concurrent code à-la-Erlang.
 
 mod error;
 mod gen_server;
diff --git a/examples/README.md b/examples/README.md
index d944f56..97b021d 100644
--- a/examples/README.md
+++ b/examples/README.md
@@ -1,7 +1,11 @@
 # Spawned examples
 Some examples to test runtime and concurrency:
 
-- ping_pong: Simple example to test Process abstraction.
-- name_server: Simple example to test GenServer abstraction.
-- bank: A bit more complex example for GenServer.
- 
+- ping_pong: Simple example to test Process abstraction using `tasks` implementation.
+- ping_pong_threads: ping_pong example on `threads` implementation.
+- name_server: Simple example to test GenServer abstraction using `tasks` implementation.
+- name_server_with_error: Same name_server example with a deliverate error to check catching mechanism to prevent panicking on callback code.
+- bank: A bit more complex example for GenServer using `tasks` implementation.
+- bank_threads: bank example on `threads` implementation.
+- updater: A "live" process that checks an url periodicaly using `tasks` implementation.
+- updater_threads: updater example on `threads` implementation.
\ No newline at end of file
diff --git a/rt/src/threads/mod.rs b/rt/src/threads/mod.rs
index d7c8f7d..cd8b543 100644
--- a/rt/src/threads/mod.rs
+++ b/rt/src/threads/mod.rs
@@ -1,3 +1,5 @@
+//! IO-threads based module to support shared behavior with task based version.
+
 pub mod mpsc;
 pub mod oneshot;
 
diff --git a/rt/src/threads/mpsc.rs b/rt/src/threads/mpsc.rs
index c486472..c5b140a 100644
--- a/rt/src/threads/mpsc.rs
+++ b/rt/src/threads/mpsc.rs
@@ -1,3 +1,3 @@
-//! Tokio.rs reexports to prevent tokio dependencies within external code
+//! non-async replacement for mpsc channels
 
 pub use std::sync::mpsc::{channel, Receiver, SendError, Sender};
diff --git a/rt/src/threads/oneshot.rs b/rt/src/threads/oneshot.rs
index 973f250..ba0accb 100644
--- a/rt/src/threads/oneshot.rs
+++ b/rt/src/threads/oneshot.rs
@@ -1,3 +1,3 @@
-//! Tokio.rs reexports to prevent tokio dependencies within external code
+//! non-async replacement for oneshot channels
 
 pub use crossbeam::{crossbeam_channel::unbounded as channel, Receiver, Sender};