文件操作 - wait_wait6.go
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文件: /usr/share/go-1.23/src/os/wait_wait6.go
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// Copyright 2016 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. //go:build dragonfly || freebsd || netbsd package os import ( "runtime" "syscall" ) // blockUntilWaitable attempts to block until a call to p.Wait will // succeed immediately, and reports whether it has done so. // It does not actually call p.Wait. func (p *Process) blockUntilWaitable() (bool, error) { var errno syscall.Errno for { _, errno = wait6(_P_PID, p.Pid, syscall.WEXITED|syscall.WNOWAIT) if errno != syscall.EINTR { break } } runtime.KeepAlive(p) if errno == syscall.ENOSYS { return false, nil } else if errno != 0 { return false, NewSyscallError("wait6", errno) } return true, nil }
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