go/src/runtime/export_unix_test.go

var NonblockingPipe …

var Fcntl …

var Closeonexec …

func sigismember(mask *sigset, i int) bool { … }

func Sigisblocked(i int) bool { … }

type M …

var waitForSigusr1 …

// WaitForSigusr1 blocks until a SIGUSR1 is received. It calls ready
// when it is set up to receive SIGUSR1. The ready function should
// cause a SIGUSR1 to be sent. The r and w arguments are a pipe that
// the signal handler can use to report when the signal is received.
//
// Once SIGUSR1 is received, it returns the ID of the current M and
// the ID of the M the SIGUSR1 was received on. If the caller writes
// a non-zero byte to w, WaitForSigusr1 returns immediately with -1, -1.
func WaitForSigusr1(r, w int32, ready func(mp *M)) (int64, int64) { … }

// waitForSigusr1Callback is called from the signal handler during
// WaitForSigusr1. It must not have write barriers because there may
// not be a P.
//
//go:nowritebarrierrec
func waitForSigusr1Callback(gp *g) bool { … }

// SendSigusr1 sends SIGUSR1 to mp.
func SendSigusr1(mp *M) { … }

const O_WRONLY …

const O_CREAT …

const O_TRUNC …