sysdeps/posix/shm_unlink.c

   1 /* shm_unlink -- remove a POSIX shared memory object.  Generic POSIX version.
   2    Copyright (C) 2001-2019 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <unistd.h>
  20
  21 #if ! _POSIX_MAPPED_FILES
  22 #include <rt/shm_unlink.c>
  23
  24 #else
  25
  26 #include <errno.h>
  27 #include <string.h>
  28 #include "shm-directory.h"
  29
  30
  31 /* Remove shared memory object.  */
  32 int
  33 shm_unlink (const char *name)
  34 {
  35   SHM_GET_NAME (ENOENT, -1, "");
  36
  37   int result = unlink (shm_name);
  38   if (result < 0 && errno == EPERM)
  39     __set_errno (EACCES);
  40   return result;
  41 }
  42
  43 #endif