208 lines
7.0 KiB
C
208 lines
7.0 KiB
C
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" 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 HOLDER 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, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _LOS_QUEUE_PRI_H
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#define _LOS_QUEUE_PRI_H
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#include "los_queue.h"
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#ifdef __cplusplus
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#if __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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typedef enum {
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OS_QUEUE_READ = 0,
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OS_QUEUE_WRITE = 1,
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OS_QUEUE_N_RW = 2
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} QueueReadWrite;
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typedef enum {
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OS_QUEUE_HEAD = 0,
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OS_QUEUE_TAIL = 1
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} QueueHeadTail;
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#define OS_QUEUE_OPERATE_TYPE(ReadOrWrite, HeadOrTail) (((UINT32)(HeadOrTail) << 1) | (ReadOrWrite))
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#define OS_QUEUE_READ_WRITE_GET(type) ((type) & 0x01U)
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#define OS_QUEUE_READ_HEAD (OS_QUEUE_READ | (OS_QUEUE_HEAD << 1))
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#define OS_QUEUE_READ_TAIL (OS_QUEUE_READ | (OS_QUEUE_TAIL << 1))
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#define OS_QUEUE_WRITE_HEAD (OS_QUEUE_WRITE | (OS_QUEUE_HEAD << 1))
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#define OS_QUEUE_WRITE_TAIL (OS_QUEUE_WRITE | (OS_QUEUE_TAIL << 1))
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#define OS_QUEUE_OPERATE_GET(type) ((type) & 0x03U)
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#define OS_QUEUE_IS_READ(type) (OS_QUEUE_READ_WRITE_GET(type) == OS_QUEUE_READ)
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#define OS_QUEUE_IS_WRITE(type) (OS_QUEUE_READ_WRITE_GET(type) == OS_QUEUE_WRITE)
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/**
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* @ingroup los_queue
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* Queue information block structure
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*/
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typedef struct {
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UINT8 *queueHandle; /**< Pointer to a queue handle */
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UINT16 queueState; /**< Queue state */
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UINT16 queueLen; /**< Queue length */
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UINT16 queueSize; /**< Node size */
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UINT32 queueID; /**< queueID */
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UINT16 queueHead; /**< Node head */
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UINT16 queueTail; /**< Node tail */
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UINT16 readWriteableCnt[OS_QUEUE_N_RW]; /**< Count of readable or writable resources, 0:readable, 1:writable */
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LOS_DL_LIST readWriteList[OS_QUEUE_N_RW]; /**< the linked list to be read or written, 0:readlist, 1:writelist */
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LOS_DL_LIST memList; /**< Pointer to the memory linked list */
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} LosQueueCB;
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/* queue state */
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/**
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* @ingroup los_queue
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* Message queue state: not in use.
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*/
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#define OS_QUEUE_UNUSED 0
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/**
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* @ingroup los_queue
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* Message queue state: used.
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*/
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#define OS_QUEUE_INUSED 1
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/**
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* @ingroup los_queue
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* Not in use.
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*/
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#define OS_QUEUE_WAIT_FOR_POOL 1
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/**
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* @ingroup los_queue
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* Normal message queue.
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*/
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#define OS_QUEUE_NORMAL 0
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/**
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* @ingroup los_queue
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* Queue information control block
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*/
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extern LosQueueCB *g_allQueue;
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/**
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* @ingroup los_queue
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* COUNT | INDEX split bit
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*/
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#define QUEUE_SPLIT_BIT 16
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/**
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* @ingroup los_queue
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* Set the queue id
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*/
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#define SET_QUEUE_ID(count, queueID) (((count) << QUEUE_SPLIT_BIT) | (queueID))
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/**
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* @ingroup los_queue
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* get the queue index
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*/
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#define GET_QUEUE_INDEX(queueID) ((queueID) & ((1U << QUEUE_SPLIT_BIT) - 1))
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/**
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* @ingroup los_queue
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* get the queue count
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*/
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#define GET_QUEUE_COUNT(queueID) ((queueID) >> QUEUE_SPLIT_BIT)
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/**
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* @ingroup los_queue
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* Obtain a handle of the queue that has a specified ID.
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*
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*/
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#define GET_QUEUE_HANDLE(queueID) (((LosQueueCB *)g_allQueue) + GET_QUEUE_INDEX(queueID))
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/**
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* @ingroup los_queue
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* Obtain the head node in a queue doubly linked list.
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*/
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#define GET_QUEUE_LIST(ptr) LOS_DL_LIST_ENTRY(ptr, LosQueueCB, readWriteList[OS_QUEUE_WRITE])
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/**
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* @ingroup los_queue
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* @brief Alloc a stationary memory for a mail.
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*
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* @par Description:
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* This API is used to alloc a stationary memory for a mail according to queueID.
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* @attention
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* <ul>
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* <li>Do not alloc memory in unblocking modes such as interrupt.</li>
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* <li>This API cannot be called before the Huawei LiteOS is initialized.</li>
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* <li>The argument timeout is a relative time.</li>
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* </ul>
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*
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* @param queueID [IN] Queue ID. The value range is [1,LOSCFG_BASE_IPC_QUEUE_LIMIT].
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* @param mailPool [IN] The memory poll that stores the mail.
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* @param timeout [IN] Expiry time. The value range is [0,LOS_WAIT_FOREVER].
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*
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* @retval #NULL The memory allocation is failed.
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* @retval #pMem The address of alloc memory.
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* @par Dependency:
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* <ul><li>los_queue_pri.h: the header file that contains the API declaration.</li></ul>
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* @see OsQueueMailFree
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*/
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extern VOID *OsQueueMailAlloc(UINT32 queueID, VOID *mailPool, UINT32 timeout);
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/**
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* @ingroup los_queue
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* @brief Free a stationary memory of a mail.
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*
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* @par Description:
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* This API is used to free a stationary memory for a mail according to queueID.
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* @attention
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* <ul>
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* <li>This API cannot be called before the Huawei LiteOS is initialized.</li>
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* </ul>
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*
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* @param queueID [IN] Queue ID. The value range is [1,LOSCFG_BASE_IPC_QUEUE_LIMIT].
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* @param mailPool [IN] The mail memory poll address.
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* @param mailMem [IN] The mail memory block address.
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*
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* @retval #LOS_OK 0x00000000: The memory free successfully.
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* @retval #OS_ERRNO_QUEUE_MAIL_HANDLE_INVALID 0x02000619: The handle of the queue passed-in when the memory
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* for the queue is being freed is invalid.
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* @retval #OS_ERRNO_QUEUE_MAIL_PTR_INVALID 0x0200061a: The pointer to the memory to be freed is null.
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* @retval #OS_ERRNO_QUEUE_MAIL_FREE_ERROR 0x0200061b: The memory for the queue fails to be freed.
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* @par Dependency:
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* <ul><li>los_queue_pri.h: the header file that contains the API declaration.</li></ul>
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* @see OsQueueMailAlloc
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*/
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extern UINT32 OsQueueMailFree(UINT32 queueID, VOID *mailPool, VOID *mailMem);
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extern UINT32 OsQueueInit(VOID);
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#ifdef __cplusplus
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#if __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __cplusplus */
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#endif /* _LOS_QUEUE_PRI_H */
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