sysdeps/mach/hurd/flock.c

   1 /* Copyright (C) 1992-2013 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <errno.h>
  19 #include <sys/file.h>
  20 #include <hurd/fd.h>
  21 #include <hurd/fs.h>
  22
  23 /* Apply or remove an advisory lock, according to OPERATION,
  24    on the file FD refers to.  */
  25 int
  26 __flock (fd, operation)
  27      int fd;
  28      int operation;
  29 {
  30   error_t err;
  31
  32   if (err = HURD_DPORT_USE (fd, __file_lock (port, operation)))
  33     return __hurd_dfail (fd, err);
  34
  35   return 0;
  36 }
  37
  38 weak_alias (__flock, flock)