sysdeps/unix/sysv/linux/msgrcv.c

   1 /* Copyright (C) 1995-2023 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 <ipc_priv.h>
  19 #include <sysdep-cancel.h>
  20
  21 ssize_t
  22 __libc_msgrcv (int msqid, void *msgp, size_t msgsz, long int msgtyp,
  23                int msgflg)
  24 {
  25 #ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
  26   return SYSCALL_CANCEL (msgrcv, msqid, msgp, msgsz, msgtyp, msgflg);
  27 #else
  28   return SYSCALL_CANCEL (ipc, IPCOP_msgrcv, msqid, msgsz, msgflg,
  29                          MSGRCV_ARGS (msgp, msgtyp));
  30 #endif
  31 }
  32 weak_alias (__libc_msgrcv, msgrcv)