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105 lines
3.8 KiB
C
105 lines
3.8 KiB
C
/*
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* Copyright (c) 2016-2017 Texas Instruments Incorporated - http://www.ti.com
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of Texas Instruments Incorporated nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* ======== mqueue.h ========
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*/
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#ifndef ti_posix_gcc_mqueue__include
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#define ti_posix_gcc_mqueue__include
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/* compiler vendor check */
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#ifndef __GNUC__
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#error Incompatible compiler: use this include path (.../ti/posix/gcc) only with a GNU compiler. You appear to be using a different compiler.
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#endif
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#include <stddef.h>
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#include <stdint.h>
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#include "time.h"
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#include "sys/types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Message queue descriptor */
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typedef void *mqd_t;
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/*
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* ======== mq_attr ========
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*/
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struct mq_attr {
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long mq_flags; /* Message queue description flags: 0 or O_NONBLOCK.
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Initialized from oflag argument of mq_open(). */
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long mq_maxmsg; /* Maximum number of messages on queue. */
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long mq_msgsize; /* Maximum message size. */
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long mq_curmsgs; /* Number of messages currently queued. */
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};
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/* Deprecated. This typedef is for compatibility with old SDKs. It is
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* not part of the POSIX standard. It will be removed in a future
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* release. TIRTOS-1317
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*/
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typedef struct mq_attr mq_attr;
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/* For mq_open() */
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#define O_CREAT 0x200 /* TODO: sys/fcntl.h? */
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#define O_EXCL 0x0800 /* Error on open if queue exists */
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#define O_RDONLY 0
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#define O_WRONLY 1
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#define O_RDWR 2
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#define O_NONBLOCK 0x4000 /* Fail with EAGAIN if resources unavailable */
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typedef uint32_t mode_t; /* TODO: sys/stat.h? */
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extern int mq_close(mqd_t mqdes);
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extern int mq_getattr(mqd_t mqdes, struct mq_attr *mqstat);
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extern mqd_t mq_open(const char *name, int oflags, ...);
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extern ssize_t mq_receive(mqd_t mqdes, char *msg_ptr, size_t msg_len,
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unsigned int *msg_prio);
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extern int mq_send(mqd_t mqdes, const char *msg_ptr, size_t msg_len,
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unsigned int msg_prio);
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extern int mq_setattr(mqd_t mqdes, const struct mq_attr *mqstat,
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struct mq_attr *omqstat);
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extern ssize_t mq_timedreceive(mqd_t mqdes, char *msg_ptr, size_t msg_len,
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unsigned int *msg_prio, const struct timespec *abstime);
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extern int mq_timedsend(mqd_t mqdes, const char *msg_ptr, size_t msg_len,
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unsigned int msg_prio, const struct timespec *abstime);
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extern int mq_unlink(const char *name);
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#ifdef __cplusplus
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}
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#endif
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#endif /* ti_posix_gcc_mqueue__include */
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