sysdeps/unix/sysv/linux/mq_receive.c

   1 /* Copyright (C) 2004-2014 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 <mqueue.h>
  20 #include <stddef.h>
  21 #include <sysdep.h>
  22
  23 #ifdef __NR_mq_timedreceive
  24
  25 /* Receive the oldest from highest priority messages in message queue
  26    MQDES.  */
  27 ssize_t
  28 mq_receive (mqd_t mqdes, char *msg_ptr, size_t msg_len,
  29             unsigned int *msg_prio)
  30 {
  31   return mq_timedreceive (mqdes, msg_ptr, msg_len, msg_prio, NULL);
  32 }
  33
  34 #else
  35 # include <rt/mq_receive.c>
  36 #endif