forked from xuos/xiuos
58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
/*
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* Copyright (c) 2020 AIIT XUOS Lab
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* XiUOS is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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/**
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* @file: msgqueue.h
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* @brief: the function definition of posix msg queue
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* @version: 1.0
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* @author: AIIT XUOS Lab
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* @date: 2020/4/20
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*
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*/
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#ifndef MQUEUE_H
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#define MQUEUE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "../../switch_api/user_api.h"
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#include <time.h>
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#define DEFAULT_MQUEUE_SIZE (10 * 1024)
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#define DEFAULT_MAX_MSG_SIZE (1024)
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typedef int mqd_t;
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struct mq_attr {
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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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mqd_t mq_open(const char *name, int oflag, ...);
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int mq_close(mqd_t mqdes);
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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, const struct mq_attr *mqstat, struct mq_attr *omqstat);
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int mq_getattr(mqd_t mqdes, struct mq_attr *mqstat);
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ssize_t mq_timedreceive(mqd_t mqdes, char *msg_ptr, size_t msg_len, unsigned *msg_prio, const struct timespec *abs_timeout);
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int mq_timedsend(mqd_t mqdes, const char *msg_ptr, size_t msg_len, unsigned msg_prio, const struct timespec *abs_timeout);
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int mq_unlink(const char *name);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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