flock_aix.mx raw

   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 syscall
   6  
   7  import "unsafe"
   8  
   9  // On AIX, there is no flock() system call.
  10  
  11  // FcntlFlock performs a fcntl syscall for the [F_GETLK], [F_SETLK] or [F_SETLKW] command.
  12  func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) (err error) {
  13  	_, _, e1 := syscall6(uintptr(unsafe.Pointer(&libc_fcntl)), 3, uintptr(fd), uintptr(cmd), uintptr(unsafe.Pointer(lk)), 0, 0, 0)
  14  	if e1 != 0 {
  15  		err = errnoErr(e1)
  16  	}
  17  	return
  18  }
  19