blob: 48e7596922ba5b54a89375b92ca914911107199a [file] [log] [blame]
// Copyright 2018 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.
package poll
import "syscall"
// Fsync invokes SYS_FCNTL with SYS_FULLFSYNC because
// on OS X, SYS_FSYNC doesn't fully flush contents to disk.
// See Issue #26650 as well as the man page for fsync on OS X.
func (fd *FD) Fsync() error {
if err := fd.incref(); err != nil {
return err
defer fd.decref()
return ignoringEINTR(func() error {
_, err := fcntl(fd.Sysfd, syscall.F_FULLFSYNC, 0)
return err