30 lines
516 B
Go
30 lines
516 B
Go
//go:build !darwin
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package utils
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import (
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"os"
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"time"
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"golang.org/x/sys/unix"
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)
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func Select(nfd int, r *unix.FdSet, w *unix.FdSet, e *unix.FdSet, timeout time.Duration) (n int, err error) {
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deadline := time.Now().Add(timeout)
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for {
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t := deadline.Sub(time.Now())
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if t < 0 {
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t = 0
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}
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ts := NsecToTimespec(t)
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q, qerr := unix.Pselect(nfd, r, w, w, &ts, nil)
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if qerr == unix.EINTR {
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if time.Now().After(deadline) {
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return 0, os.ErrDeadlineExceeded
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}
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continue
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}
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return q, qerr
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}
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}
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