include/mqueue.h

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause
   3  *
   4  * Copyright (c) 2005 David Xu <davidxu@freebsd.org>
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #ifndef _MQUEUE_H_
  30 #define _MQUEUE_H_
  31
  32 #include <sys/types.h>
  33 #include <sys/mqueue.h>
  34 #include <sys/signal.h>
  35
  36 struct timespec;
  37
  38 __BEGIN_DECLS
  39 int     mq_close(mqd_t);
  40 int     mq_getattr(mqd_t, struct mq_attr *);
  41 int     mq_notify(mqd_t, const struct sigevent *);
  42 mqd_t   mq_open(const char *, int, ...);
  43 ssize_t mq_receive(mqd_t, char *, size_t, unsigned *);
  44 int     mq_send(mqd_t, const char *, size_t, unsigned);
  45 int     mq_setattr(mqd_t, const struct mq_attr *__restrict,
  46                 struct mq_attr *__restrict);
  47 ssize_t mq_timedreceive(mqd_t, char *__restrict, size_t,
  48                 unsigned *__restrict, const struct timespec *__restrict);
  49 int     mq_timedsend(mqd_t, const char *, size_t, unsigned,
  50                 const struct timespec *);
  51 int     mq_unlink(const char *);
  52 #if __BSD_VISIBLE
  53 int     mq_getfd_np(mqd_t mqd);
  54 #endif /* __BSD_VISIBLE */
  55
  56 __END_DECLS
  57 #endif