lib/librt/mq.c

   1 /*-
   2  * Copyright (c) 2006 David Xu <davidxu@freebsd.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD$
  27  */
  28
  29 #include <sys/types.h>
  30 #include <sys/syscall.h>
  31 #include <sys/sysproto.h>
  32 #include <sys/mqueue.h>
  33
  34 #include <errno.h>
  35 #include <stddef.h>
  36 #include <stdlib.h>
  37 #include <signal.h>
  38
  39 extern int      __sys_mq_open(const char *, int, mode_t,
  40     const struct mq_attr *);
  41 extern int      __sys_mq_close(int fd);
  42 extern int      __sys_mq_getattr(mqd_t mqd, struct mq_attr *attr);
  43 extern int      __sys_mq_notify(int, const struct sigevent *);
  44 extern ssize_t  __sys_mq_receive(mqd_t mqd, char *buf, size_t len,
  45     unsigned *prio);
  46 extern ssize_t  __sys_mq_send(mqd_t mqd, char *buf, size_t len, unsigned prio);
  47 extern int      __sys_mq_setattr(int, const struct mq_attr *__restrict,
  48     struct mq_attr *__restrict);
  49 extern ssize_t  __sys_mq_timedreceive(int, char *__restrict, size_t,
  50     unsigned *__restrict, const struct timespec *__restrict);
  51 extern int      __sys_mq_timedsend(int, const char *, size_t, unsigned,
  52     const struct timespec *);
  53 extern int      __sys_mq_unlink(const char *);
  54
  55 mqd_t
  56 __mq_open(const char *name, int oflag, mode_t mode,
  57         const struct mq_attr *attr)
  58 {
  59         return (__sys_mq_open(name, oflag, mode, attr));
  60 }
  61
  62 int
  63 __mq_close(mqd_t mqd)
  64 {
  65         return (__sys_mq_close(mqd));
  66 }
  67
  68 int
  69 __mq_notify(mqd_t mqd, const struct sigevent *evp)
  70 {
  71         return (__sys_mq_notify(mqd, evp));
  72 }
  73
  74 int
  75 __mq_getattr(mqd_t mqd, struct mq_attr *attr)
  76 {
  77         return (__sys_mq_getattr(mqd, attr));
  78 }
  79
  80 int
  81 __mq_setattr(mqd_t mqd, const struct mq_attr *newattr, struct mq_attr *oldattr)
  82 {
  83         return (__sys_mq_setattr(mqd, newattr, oldattr));
  84 }
  85
  86 ssize_t
  87 __mq_timedreceive(mqd_t mqd, char *buf, size_t len,
  88         unsigned *prio, const struct timespec *timeout)
  89 {
  90         return (__sys_mq_timedreceive(mqd, buf, len, prio, timeout));
  91 }
  92
  93 ssize_t
  94 __mq_receive(mqd_t mqd, char *buf, size_t len, unsigned *prio)
  95 {
  96         return (__sys_mq_receive(mqd, buf, len, prio));
  97 }
  98
  99 ssize_t
 100 __mq_timedsend(mqd_t mqd, char *buf, size_t len,
 101         unsigned prio, const struct timespec *timeout)
 102 {
 103         return (__sys_mq_timedsend(mqd, buf, len, prio, timeout));
 104 }
 105
 106 ssize_t
 107 __mq_send(mqd_t mqd, char *buf, size_t len, unsigned prio)
 108 {
 109         return (__sys_mq_send(mqd, buf, len, prio));
 110 }
 111
 112 int
 113 __mq_unlink(const char *path)
 114 {
 115         return (__sys_mq_unlink(path));
 116 }
 117
 118 __weak_reference(__mq_open, mq_open);
 119 __weak_reference(__mq_open, _mq_open);
 120 __weak_reference(__mq_close, mq_close);
 121 __weak_reference(__mq_close, _mq_close);
 122 __weak_reference(__mq_notify, mq_notify);
 123 __weak_reference(__mq_notify, _mq_notify);
 124 __weak_reference(__mq_getattr, mq_getattr);
 125 __weak_reference(__mq_getattr, _mq_getattr);
 126 __weak_reference(__mq_setattr, mq_setattr);
 127 __weak_reference(__mq_setattr, _mq_setattr);
 128 __weak_reference(__mq_timedreceive, mq_timedreceive);
 129 __weak_reference(__mq_timedreceive, _mq_timedreceive);
 130 __weak_reference(__mq_timedsend, mq_timedsend);
 131 __weak_reference(__mq_timedsend, _mq_timedsend);
 132 __weak_reference(__mq_unlink, mq_unlink);
 133 __weak_reference(__mq_unlink, _mq_unlink);
 134 __weak_reference(__mq_send, mq_send);
 135 __weak_reference(__mq_send, _mq_send);
 136 __weak_reference(__mq_receive, mq_receive);
 137 __weak_reference(__mq_receive, _mq_receive);