Add comment to clarify how the test can fail
[glibc.git] / rt / mq_timedreceive.c
blobc476c686968f17252c130fe8a9245b40ab848c69
1 /* Copyright (C) 2004-2015 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
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.
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.
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/>. */
18 #include <errno.h>
19 #include <mqueue.h>
21 /* Receive the oldest from highest priority messages in message queue
22 MQDES, stop waiting if ABS_TIMEOUT expires. */
23 ssize_t
24 __mq_timedreceive (mqd_t mqdes, char *__restrict msg_ptr, size_t msg_len,
25 unsigned int *__restrict msg_prio,
26 const struct timespec *__restrict abs_timeout)
28 __set_errno (ENOSYS);
29 return -1;
31 hidden_def (__mq_timedreceive)
32 weak_alias (__mq_timedreceive, mq_timedreceive)
33 hidden_weak (mq_timedreceive)
34 stub_warning (mq_timedreceive)