sysdeps/unix/sysv/linux/shmget.c

   1 /* Copyright (C) 1995-2024 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    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <sys/msg.h>
  19 #include <stddef.h>
  20 #include <ipc_priv.h>
  21 #include <sysdep.h>
  22
  23 /* Return an identifier for an shared memory segment of at least size SIZE
  24    which is associated with KEY.  */
  25
  26 int
  27 shmget (key_t key, size_t size, int shmflg)
  28 {
  29 #ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
  30   return INLINE_SYSCALL_CALL (shmget, key, size, shmflg, NULL);
  31 #else
  32   return INLINE_SYSCALL_CALL (ipc, IPCOP_shmget, key, size, shmflg, NULL);
  33 #endif
  34 }