sysdeps/unix/sysv/linux/sparc/sparc64/msgrcv.c

   1 /* Copyright (C) 2010-2014 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/msg.h>
  20 #include <ipc_priv.h>
  21
  22 #include <sysdep-cancel.h>
  23 #include <sys/syscall.h>
  24
  25 ssize_t
  26 __libc_msgrcv (msqid, msgp, msgsz, msgtyp, msgflg)
  27      int msqid;
  28      void *msgp;
  29      size_t msgsz;
  30      long int msgtyp;
  31      int msgflg;
  32 {
  33   if (SINGLE_THREAD_P)
  34     return INLINE_SYSCALL (ipc, 6, IPCOP_msgrcv, msqid, msgsz, msgflg,
  35                            msgp, msgtyp);
  36
  37   int oldtype = LIBC_CANCEL_ASYNC ();
  38
  39   ssize_t result = INLINE_SYSCALL (ipc, 6, IPCOP_msgrcv, msqid, msgsz, msgflg,
  40                                    msgp, msgtyp);
  41
  42   LIBC_CANCEL_RESET (oldtype);
  43
  44   return result;
  45 }
  46 weak_alias (__libc_msgrcv, msgrcv)