74 lines
2.5 KiB
C
74 lines
2.5 KiB
C
/*
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* File : mqueue.h
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2012, RT-Thread Development Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Change Logs:
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* Date Author Notes
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*/
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#ifndef __MQUEUE_H__
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#define __MQUEUE_H__
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#include <rtthread.h>
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#include <pthread.h>
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struct mqdes
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{
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/* reference count and unlinked */
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rt_uint16_t refcount;
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rt_uint16_t unlinked;
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/* RT-Thread message queue */
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rt_mq_t mq;
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/* next posix mqueue */
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struct mqdes* next;
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};
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typedef struct mqdes* mqd_t;
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struct mq_attr
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{
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long mq_flags; /* Message queue flags. */
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long mq_maxmsg; /* Maximum number of messages. */
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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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int mq_close(mqd_t mqdes);
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int mq_getattr(mqd_t mqdes, struct mq_attr *mqstat);
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int mq_notify(mqd_t mqdes, const struct sigevent *notification);
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mqd_t mq_open(const char *name, int oflag, ...);
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ssize_t mq_receive(mqd_t mqdes, char *msg_ptr, size_t msg_len, unsigned *msg_prio);
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int mq_send(mqd_t mqdes, const char *msg_ptr, size_t msg_len, unsigned msg_prio);
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int mq_setattr(mqd_t mqdes,
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const struct mq_attr *mqstat,
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struct mq_attr *omqstat);
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ssize_t mq_timedreceive(mqd_t mqdes,
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char *msg_ptr,
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size_t msg_len,
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unsigned *msg_prio,
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const struct timespec *abs_timeout);
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int mq_timedsend(mqd_t mqdes,
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const char *msg_ptr,
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size_t msg_len,
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unsigned msg_prio,
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const struct timespec *abs_timeout);
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int mq_unlink(const char *name);
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#endif
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