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+/* Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _MQUEUE_H
+#define _MQUEUE_H 1
+
+#include <features.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#define __need_sigevent_t
+#include <bits/siginfo.h>
+#define __need_timespec
+#include <time.h>
+/* Get the definition of mqd_t and struct mq_attr. */
+#include <bits/mqueue.h>
+
+__BEGIN_DECLS
+
+/* Establish connection between a process and a message queue NAME and
+ return message queue descriptor or (mqd_t) -1 on error. OFLAG determines
+ the type of access used. If O_CREAT is on OFLAG, the third argument is
+ taken as a `mode_t', the mode of the created message queue, and the fourth
+ argument is taken as `struct mq_attr *', pointer to message queue
+ attributes. If the fourth argument is NULL, default attributes are
+ used. */
+extern mqd_t mq_open (const char *__name, int __oflag, ...) __THROW;
+
+/* Removes the association between message queue descriptor MQDES and its
+ message queue. */
+extern int mq_close (mqd_t __mqdes) __THROW;
+
+/* Query status and attributes of message queue MQDES. */
+extern int mq_getattr (mqd_t __mqdes, struct mq_attr *__mqstat) __THROW;
+
+/* Set attributes associated with message queue MQDES and if OMQSTAT is
+ not NULL also query its old attributes. */
+extern int mq_setattr (mqd_t __mqdes,
+ const struct mq_attr *__restrict __mqstat,
+ struct mq_attr *__restrict __omqstat) __THROW;
+
+/* Remove message queue named NAME. */
+extern int mq_unlink (const char *__name) __THROW;
+
+/* Register notification upon message arrival to an empty message queue
+ MQDES. */
+extern int mq_notify (mqd_t __mqdes, const struct sigevent *__notification)
+ __THROW;
+
+/* Receive the oldest from highest priority messages in message queue
+ MQDES. */
+extern ssize_t mq_receive (mqd_t __mqdes, char *__msg_ptr, size_t __msg_len,
+ unsigned int *__msg_prio);
+
+/* Add message pointed by MSG_PTR to message queue MQDES. */
+extern int mq_send (mqd_t __mqdes, const char *__msg_ptr, size_t __msg_len,
+ unsigned int __msg_prio);
+
+#ifdef __USE_XOPEN2K
+/* Receive the oldest from highest priority messages in message queue
+ MQDES, stop waiting if ABS_TIMEOUT expires. */
+extern ssize_t mq_timedreceive (mqd_t __mqdes, char *__restrict __msg_ptr,
+ size_t __msg_len,
+ unsigned int *__restrict __msg_prio,
+ const struct timespec *__restrict __abs_timeout);
+
+/* Add message pointed by MSG_PTR to message queue MQDES, stop blocking
+ on full message queue if ABS_TIMEOUT expires. */
+extern int mq_timedsend (mqd_t __mqdes, const char *__msg_ptr,
+ size_t __msg_len, unsigned int __msg_prio,
+ const struct timespec *__abs_timeout);
+#endif
+
+__END_DECLS
+
+#endif /* mqueue.h */