Minimal zig TCP library that fully comply with zig Writergate. Say no more to blocking socket event by utilizing easy way to ensure the socket readiness.

Prevent blocking on socket read and write

const zignet = @import("../src/zignet.zig");
const std = @import("std");

test {
    const endpoint: zignet.Endpoint = .{
        .addr = .{ .ipv4 = .parse("0.0.0.0") },
        .port = 9001,
    };

    var writer_buf: [4096]u8 = undefined;
    var reader_buf: [4096]u8 = undefined;

    const sock = try zignet.Socket.connect(endpoint, null);
    defer sock.close();
    var writer = sock.writer(&writer_buf);
    var reader = sock.reader(&reader_buf);

    // This call ensure that the socket is ready to write. Pass function with
    // type `fn () anyerror!void` to stop waiting the socket to be ready.
    try sock.waitToWrite();
    try writer.interface.write("Hello, World!");
    try writer.interface.flush();

    try sock.waitToRead();
    while (reader.interface.takeByte()) |byte| {
        std.debug.print("{c}", .{byte});
    } else |e| {
        switch (e) {
            error.EndOfStream => std.debug.print(
                "\nFinished reading\n",
                .{},
            ),
            error.ReadFailed => return e,
        }
    }
}