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/cdefs.h>
  30 #include <sys/types.h>
  31 #include <sys/syscall.h>
  32 #include <sys/sysproto.h>
  33 #include <sys/mqueue.h>
  34
  35 #include <errno.h>
  36 #include <stddef.h>
  37 #include <stdlib.h>
  38 #include <signal.h>
  39
  40 extern int      __sys_mq_open(const char *, int, mode_t,
  41     const struct mq_attr *);
  42 extern int      __sys_mq_close(int fd);
  43 extern int      __sys_mq_getattr(mqd_t mqd, struct mq_attr *attr);
  44 extern int      __sys_mq_notify(int, const struct sigevent *);
  45 extern ssize_t  __sys_mq_receive(mqd_t mqd, char *buf, size_t len,
  46     unsigned *prio);
  47 extern ssize_t  __sys_mq_send(mqd_t mqd, char *buf, size_t len, unsigned prio);
  48 extern int      __sys_mq_setattr(int, const struct mq_attr *__restrict,
  49     struct mq_attr *__restrict);
  50 extern ssize_t  __sys_mq_timedreceive(int, char *__restrict, size_t,
  51     unsigned *__restrict, const struct timespec *__restrict);
  52 extern int      __sys_mq_timedsend(int, const char *, size_t, unsigned,
  53     const struct timespec *);
  54 extern int      __sys_mq_unlink(const char *);
  55
  56 __weak_reference(__mq_open, mq_open);
  57 __weak_reference(__mq_open, _mq_open);
  58 __weak_reference(__mq_close, mq_close);
  59 __weak_reference(__mq_close, _mq_close);
  60 __weak_reference(__mq_notify, mq_notify);
  61 __weak_reference(__mq_notify, _mq_notify);
  62 __weak_reference(__mq_getattr, mq_getattr);
  63 __weak_reference(__mq_getattr, _mq_getattr);
  64 __weak_reference(__mq_setattr, mq_setattr);
  65 __weak_reference(__mq_setattr, _mq_setattr);
  66 __weak_reference(__mq_timedreceive, mq_timedreceive);
  67 __weak_reference(__mq_timedreceive, _mq_timedreceive);
  68 __weak_reference(__mq_timedsend, mq_timedsend);
  69 __weak_reference(__mq_timedsend, _mq_timedsend);
  70 __weak_reference(__mq_unlink, mq_unlink);
  71 __weak_reference(__mq_unlink, _mq_unlink);
  72 __weak_reference(__mq_send, mq_send);
  73 __weak_reference(__mq_send, _mq_send);
  74 __weak_reference(__mq_receive, mq_receive);
  75 __weak_reference(__mq_receive, _mq_receive);
  76
  77 mqd_t
  78 __mq_open(const char *name, int oflag, mode_t mode,
  79         const struct mq_attr *attr)
  80 {
  81         return (__sys_mq_open(name, oflag, mode, attr));
  82 }
  83
  84 int
  85 __mq_close(mqd_t mqd)
  86 {
  87         return (__sys_mq_close(mqd));
  88 }
  89
  90 int
  91 __mq_notify(mqd_t mqd, const struct sigevent *evp)
  92 {
  93         return (__sys_mq_notify(mqd, evp));
  94 }
  95
  96 int
  97 __mq_getattr(mqd_t mqd, struct mq_attr *attr)
  98 {
  99         return (__sys_mq_getattr(mqd, attr));
 100 }
 101
 102 int
 103 __mq_setattr(mqd_t mqd, const struct mq_attr *newattr, struct mq_attr *oldattr)
 104 {
 105         return (__sys_mq_setattr(mqd, newattr, oldattr));
 106 }
 107
 108 ssize_t
 109 __mq_timedreceive(mqd_t mqd, char *buf, size_t len,
 110         unsigned *prio, const struct timespec *timeout)
 111 {
 112         return (__sys_mq_timedreceive(mqd, buf, len, prio, timeout));
 113 }
 114
 115 ssize_t
 116 __mq_receive(mqd_t mqd, char *buf, size_t len, unsigned *prio)
 117 {
 118         return (__sys_mq_receive(mqd, buf, len, prio));
 119 }
 120
 121 ssize_t
 122 __mq_timedsend(mqd_t mqd, char *buf, size_t len,
 123         unsigned prio, const struct timespec *timeout)
 124 {
 125         return (__sys_mq_timedsend(mqd, buf, len, prio, timeout));
 126 }
 127
 128 ssize_t
 129 __mq_send(mqd_t mqd, char *buf, size_t len, unsigned prio)
 130 {
 131         return (__sys_mq_send(mqd, buf, len, prio));
 132 }
 133
 134 int
 135 __mq_unlink(const char *path)
 136 {
 137         return (__sys_mq_unlink(path));
 138 }