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Diffstat (limited to 'sys/posix4/mqueue.h')
| -rw-r--r-- | sys/posix4/mqueue.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/sys/posix4/mqueue.h b/sys/posix4/mqueue.h new file mode 100644 index 000000000000..0872ddf6266d --- /dev/null +++ b/sys/posix4/mqueue.h @@ -0,0 +1,71 @@ +#ifndef _MQUEUE_H_ +#define _MQUEUE_H_ + +/* mqueue.h: POSIX.4 Message Queues */ + +/*- + * Copyright (c) 1996, 1997 + * HD Associates, Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by HD Associates, Inc + * 4. Neither the name of the author nor the names of any co-contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL HD ASSOCIATES OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +#ifdef POSIX4_INCLUDE_MAYBES +#include <sys/types.h> +#include <fcntl.h> +#include <time.h> +#include <signal.h> +#else +struct sigevent; +#endif + +typedef int mqd_t; /* message queue descriptors */ + +struct mq_attr { + long mq_flags; /* message queue flags */ + long mq_maxmsg; /* maximum number of messages */ + long mq_msgsize; /* maximum message size */ + long mq_curmsgs; /* number of messages currently queued */ +}; + +#ifndef KERNEL +#include <sys/cdefs.h> + +mqd_t mq_open __P((const char *, int oflag, ...)); +int mq_close __P((mqd_t)); +int mq_unlink __P((const char *)); +int mq_send __P((mqd_t, const char *, size_t, unsigned int)); +ssize_t mq_receive __P((mqd_t, char *, size_t, unsigned int *)); +int mq_notify __P((mqd_t, const struct sigevent *)); +int mq_setattr __P((mqd_t, const struct mq_attr *, struct mq_attr *)); +int mq_getattr __P((mqd_t, struct mq_attr *)); + +#endif /* KERNEL */ + +#endif /* _MQUEUE_H_ */ |