Adding upstream version 1.21.8.upstream/1.21.8

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 30 insertions, 0 deletions

diff --git a/src/syscall/forkpipe.go b/src/syscall/forkpipe.go
new file mode 100644
index 0000000..1f4292f
--- /dev/null
+++ b/src/syscall/forkpipe.go
@@ -0,0 +1,30 @@
+// Copyright 2011 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 aix || darwin
+
+package syscall
+
+// forkExecPipe opens a pipe and non-atomically sets O_CLOEXEC on both file
+// descriptors.
+func forkExecPipe(p []int) error {
+	err := Pipe(p)
+	if err != nil {
+		return err
+	}
+	_, err = fcntl(p[0], F_SETFD, FD_CLOEXEC)
+	if err != nil {
+		return err
+	}
+	_, err = fcntl(p[1], F_SETFD, FD_CLOEXEC)
+	return err
+}
+
+func acquireForkLock() {
+	ForkLock.Lock()
+}
+
+func releaseForkLock() {
+	ForkLock.Unlock()
+}