160 lines
4.8 KiB
C
Executable File
160 lines
4.8 KiB
C
Executable File
/*
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* Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020, 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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/**
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* @defgroup los_heap Heap
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* @ingroup kernel
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*/
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#ifndef _LOS_HEAP_PRI_H
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#define _LOS_HEAP_PRI_H
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#include "los_heap.h"
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#include "los_slab_pri.h"
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#include "los_memstat_pri.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct tagLosHeapStatus {
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UINT32 totalSize;
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UINT32 usedSize;
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UINT32 freeSize;
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UINT32 allocCount;
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UINT32 freeCount;
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} LosHeapStatus;
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struct LosHeapManager {
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struct LOS_HEAP_NODE *head;
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struct LOS_HEAP_NODE *tail;
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UINT32 size;
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#if (LOSCFG_MEM_MUL_POOL == YES)
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VOID *nextPool;
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#endif
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#if (LOSCFG_KERNEL_MEM_SLAB == YES)
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struct LosSlabControlHeader slabCtrlHdr;
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#endif
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#if (LOSCFG_KERNEL_MEM_STATISTICS == YES)
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TaskMemUsedInfo memStats[LOSCFG_BASE_CORE_TSK_LIMIT + 2];
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#endif
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};
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/**
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* @ingroup los_heap
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* @brief Look up the next memory node according to one memory node in the memory block list.
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*
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* @par Description:
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* This API is used to look up the next memory node according to one memory node in the memory block list.
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* @attention
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* <ul>
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* <li>None.</li>
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* </ul>
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* @param heapMan [IN] Type #LosHeapManager * Pointer to the manager,to distinguish heap.
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* @param node [IN] Type #LOS_HEAP_NODE * Size of memory in bytes to allocate.
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*
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* @retval LOS_HEAP_NODE * Pointer to next memory node.
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*
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* @par Dependency:
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* <ul><li>los_heap_pri.h: the header file that contains the API declaration.</li></ul>
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* @see None.
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*/
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extern struct LOS_HEAP_NODE* OsHeapPrvGetNext(struct LosHeapManager *heapMan, struct LOS_HEAP_NODE* node);
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/**
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* @ingroup los_heap
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* @brief Obtain the heap information.
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*
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* @par Description:
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* This API is used to obtain the heap information.
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* @attention
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* <ul>
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* <li>None.</li>
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* </ul>
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* @param pool [IN] Type #VOID * A pointer pointed to the heap memory pool.
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*
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* @retval None.
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*
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* @par Dependency:
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* <ul><li>los_heap_pri.h: the header file that contains the API declaration.</li></ul>
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* @see None.
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*/
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extern VOID OsAlarmHeapInfo(VOID *pool);
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/**
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* @ingroup los_heap
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* @brief Obtain the heap status.
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*
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* @par Description:
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* This API is used to obtain the heap status.
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* @attention
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* <ul>
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* <li>None.</li>
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* </ul>
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* @param pool [IN] Type #VOID * A pointer pointed to the heap memory pool.
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* @param status [OUT] Type #LosHeapStatus * Heap status.
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*
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* @retval UINT32 Get status result.
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*
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* @par Dependency:
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* <ul><li>los_heap_pri.h: the header file that contains the API declaration.</li></ul>
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* @see None.
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*/
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extern UINT32 OsHeapStatisticsGet(VOID *pool, LosHeapStatus *status);
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/**
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* @ingroup los_heap
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* @brief Get the max free block size.
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*
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* @par Description:
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* This API is used to Get the max free block size.
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* @attention
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* <ul>
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* <li>None.</li>
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* </ul>
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* @param pool [IN] Type #VOID * A pointer pointed to the heap memory pool.
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*
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* @retval UINT32 Max free block size.
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*
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* @par Dependency:
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* <ul><li>los_heap_pri.h: the header file that contains the API declaration.</li></ul>
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* @see None.
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*/
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extern UINT32 OsHeapGetMaxFreeBlkSize(VOID *pool);
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#ifdef __cplusplus
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}
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#endif
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#endif
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