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⚡ Bolt: optimize socket parsing in proc/net.go #176

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⚡ Bolt: optimize socket parsing in proc/net.go #176

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13 changes: 10 additions & 3 deletions proc/net.go
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Original file line number Diff line number Diff line change
Expand Up @@ -58,8 +58,7 @@ func readSockets(src string) ([]Sock, error) {
local, b := nextField(b)
remote, b := nextField(b)
st, b := nextField(b)
state := string(st)
if state != stateEstablished && state != stateListen {
if !isStateEstablished(st) && !isStateListen(st) {
continue
}
_, b = nextField(b)
Expand All @@ -68,11 +67,19 @@ func readSockets(src string) ([]Sock, error) {
_, b = nextField(b)
_, b = nextField(b)
inode, _ := nextField(b)
res = append(res, Sock{SAddr: decodeAddr(local), DAddr: decodeAddr(remote), Listen: state == stateListen, Inode: string(inode)})
res = append(res, Sock{SAddr: decodeAddr(local), DAddr: decodeAddr(remote), Listen: isStateListen(st), Inode: string(inode)})
}
return res, nil
}

func isStateEstablished(s []byte) bool {
return len(s) == 2 && s[0] == '0' && s[1] == '1'
}

func isStateListen(s []byte) bool {
return len(s) == 2 && s[0] == '0' && s[1] == 'A'
}

func nextField(s []byte) ([]byte, []byte) {
for i, b := range s {
if b != ' ' {
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