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27 lines
798 B
Go
27 lines
798 B
Go
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// Copyright 2021 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
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// +build darwin dragonfly freebsd linux netbsd openbsd solaris
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package socket
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import (
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"syscall"
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)
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// ioComplete checks the flags and result of a syscall, to be used as return
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// value in a syscall.RawConn.Read or Write callback.
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func ioComplete(flags int, operr error) bool {
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if flags&syscall.MSG_DONTWAIT != 0 {
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// Caller explicitly said don't wait, so always return immediately.
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return true
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}
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if operr == syscall.EAGAIN || operr == syscall.EWOULDBLOCK {
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// No data available, block for I/O and try again.
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return false
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}
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return true
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}
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