142 lines
4.3 KiB
C
142 lines
4.3 KiB
C
/*
|
|
* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
|
|
* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
|
* are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this list of
|
|
* conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
|
|
* of conditions and the following disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the copyright holder nor the names of its contributors may be used
|
|
* to endorse or promote products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
|
|
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
|
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
|
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _MQUEUE_IMPL_H
|
|
#define _MQUEUE_IMPL_H
|
|
|
|
#define _GNU_SOURCE
|
|
|
|
#include <mqueue.h>
|
|
#include <errno.h>
|
|
#include <pthread.h>
|
|
#include <unistd.h>
|
|
#include <securec.h>
|
|
#include <fcntl.h>
|
|
#include <limits.h>
|
|
#include <sys/select.h>
|
|
#include "los_queue.h"
|
|
#include "los_memory.h"
|
|
#include "los_task.h"
|
|
#include "los_compiler.h"
|
|
|
|
#define OS_QUEUE_OPERATE_TYPE(ReadOrWrite, HeadOrTail, PointOrNot) \
|
|
(((UINT32)(PointOrNot) << 2) | ((UINT32)(HeadOrTail) << 1) | (ReadOrWrite))
|
|
#define OS_QUEUE_READ_WRITE_GET(type) ((type) & (0x01))
|
|
#define OS_QUEUE_READ_HEAD (OS_QUEUE_READ | (OS_QUEUE_HEAD << 1))
|
|
#define OS_QUEUE_READ_TAIL (OS_QUEUE_READ | (OS_QUEUE_TAIL << 1))
|
|
#define OS_QUEUE_WRITE_HEAD (OS_QUEUE_WRITE | (OS_QUEUE_HEAD << 1))
|
|
#define OS_QUEUE_WRITE_TAIL (OS_QUEUE_WRITE | (OS_QUEUE_TAIL << 1))
|
|
#define OS_QUEUE_OPERATE_GET(type) ((type) & (0x03))
|
|
#define OS_QUEUE_IS_POINT(type) ((type) & (0x04))
|
|
#define OS_QUEUE_IS_READ(type) (OS_QUEUE_READ_WRITE_GET(type) == OS_QUEUE_READ)
|
|
#define OS_QUEUE_IS_WRITE(type) (OS_QUEUE_READ_WRITE_GET(type) == OS_QUEUE_WRITE)
|
|
#define OS_READWRITE_LEN 2
|
|
|
|
/**
|
|
* @ingroup mqueue
|
|
* Maximum number of messages in a message queue
|
|
*/
|
|
#define MQ_MAX_MSG_NUM 16
|
|
|
|
/**
|
|
* @ingroup mqueue
|
|
* Maximum size of a single message in a message queue
|
|
*/
|
|
#define MQ_MAX_MSG_LEN 64
|
|
|
|
#define ENOERR 0
|
|
|
|
/* CONSTANTS */
|
|
|
|
#define MQ_USE_MAGIC 0x89abcdef
|
|
#define MQ_PRIO_MAX 1
|
|
|
|
|
|
#define FNONBLOCK O_NONBLOCK
|
|
|
|
#define QUEUE_SPLIT_BIT 16
|
|
|
|
#define SET_QUEUE_ID(count, queueID) (((count) << QUEUE_SPLIT_BIT) | (queueID))
|
|
|
|
/**
|
|
* @ingroup los_queue
|
|
* get the queue index
|
|
*/
|
|
#define GET_QUEUE_INDEX(queueID) ((queueID) & ((1U << QUEUE_SPLIT_BIT) - 1))
|
|
|
|
/**
|
|
* @ingroup los_queue
|
|
* get the queue count
|
|
*/
|
|
#define GET_QUEUE_COUNT(queueID) ((queueID) >> QUEUE_SPLIT_BIT)
|
|
|
|
|
|
/**
|
|
* @ingroup los_queue
|
|
* Obtain the head node in a queue doubly linked list.
|
|
*/
|
|
#define GET_QUEUE_LIST(ptr) LOS_DL_LIST_ENTRY(ptr, LosQueueCB, readWriteList[OS_QUEUE_WRITE])
|
|
|
|
#define STATIC static
|
|
#define INLINE inline
|
|
|
|
typedef union send_receive_t {
|
|
unsigned oth : 3;
|
|
unsigned grp : 6;
|
|
unsigned usr : 9;
|
|
short data;
|
|
} mode_s;
|
|
|
|
/* TYPE DEFINITIONS */
|
|
struct mqarray {
|
|
UINT32 mq_id : 31;
|
|
UINT32 unlinkflag : 1;
|
|
char *mq_name;
|
|
UINT32 unlink_ref;
|
|
mode_s mode_data; /* mode data of mqueue */
|
|
uid_t euid; /* euid of mqueue */
|
|
gid_t egid; /* egid of mqueue */
|
|
fd_set mq_fdset; /* mqueue sysFd bit map */
|
|
LosQueueCB *mqcb;
|
|
struct mqpersonal *mq_personal;
|
|
};
|
|
|
|
struct mqpersonal {
|
|
struct mqarray *mq_posixdes;
|
|
struct mqpersonal *mq_next;
|
|
int mq_flags;
|
|
int mq_mode; /* Mode of mqueue */
|
|
UINT32 mq_status;
|
|
UINT32 mq_refcount;
|
|
};
|
|
|
|
#endif
|