Source file src/internal/poll/fd_fsync_darwin.go

Documentation: internal/poll

     1  // Copyright 2018 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package poll
     6  
     7  import "syscall"
     8  
     9  // Fsync invokes SYS_FCNTL with SYS_FULLFSYNC because
    10  // on OS X, SYS_FSYNC doesn't fully flush contents to disk.
    11  // See Issue #26650 as well as the man page for fsync on OS X.
    12  func (fd *FD) Fsync() error {
    13  	if err := fd.incref(); err != nil {
    14  		return err
    15  	}
    16  	defer fd.decref()
    17  	return ignoringEINTR(func() error {
    18  		_, err := fcntl(fd.Sysfd, syscall.F_FULLFSYNC, 0)
    19  		return err
    20  	})
    21  }
    22  

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