glibc/sysdeps/unix/sysv/linux/msgsnd.c

49 lines
1.5 KiB
C

/* Copyright (C) 1995-2013 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, August 1995.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <sys/msg.h>
#include <ipc_priv.h>
#include <sysdep-cancel.h>
#include <sys/syscall.h>
#include <bp-checks.h>
int
__libc_msgsnd (msqid, msgp, msgsz, msgflg)
int msqid;
const void *msgp;
size_t msgsz;
int msgflg;
{
if (SINGLE_THREAD_P)
return INLINE_SYSCALL (ipc, 5, IPCOP_msgsnd, msqid, msgsz,
msgflg, (void *) CHECK_N (msgp, msgsz));
int oldtype = LIBC_CANCEL_ASYNC ();
int result = INLINE_SYSCALL (ipc, 5, IPCOP_msgsnd, msqid, msgsz,
msgflg, (void *) CHECK_N (msgp, msgsz));
LIBC_CANCEL_RESET (oldtype);
return result;
}
weak_alias (__libc_msgsnd, msgsnd)