447 lines
15 KiB
C
447 lines
15 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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/**
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* @defgroup los_memory Dynamic memory
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* @ingroup kernel
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*/
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#ifndef _LOS_MEMORY_H
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#define _LOS_MEMORY_H
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#include "los_config.h"
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#include "los_base.h"
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#include "los_toolchain.h"
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#include "los_membox.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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#ifdef LOSCFG_MEM_LEAKCHECK
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/**
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* @ingroup los_memory
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* The omit layers of function call from call kernel memory interfaces
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* such as LOS_MemAlloc/LOS_MemAllocAlign/LOS_MemRealloc/LOS_MemFree.
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*/
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#define LOS_OMIT_LR_CNT 2
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/**
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* @ingroup los_memory
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* The recored layes of function call.
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*/
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#define LOS_RECORD_LR_CNT 3
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#endif
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/**
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* @ingroup los_memory
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* The start address of exc interaction dynamic memory pool address, when the exc
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* interaction feature not support, m_aucSysMem0 equals to m_aucSysMem1.
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*/
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extern UINT8 *m_aucSysMem0;
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/**
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* @ingroup los_memory
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* The start address of system dynamic memory pool address.
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*/
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extern UINT8 *m_aucSysMem1;
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/**
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* @ingroup los_memory
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* The memory Maximum memory usage statistics.
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* @attention
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* <ul> <li>If running as debug mode, it will affect the performance of memory malloc and free.</li>
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* <li> OS_MEM_WATERLINE=YES: open the function for Maximum memory usage statistics </li>
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* <li> OS_MEM_WATERLINE=NO: close the function for Maximum memory usage statistics, it set to NO as usual </li>
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* </ul>
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*/
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#ifdef LOSCFG_MEM_WATERLINE
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#define OS_MEM_WATERLINE YES
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#endif
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#ifdef LOSCFG_MEM_MUL_POOL
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/**
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* @ingroup los_memory
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* @brief Deinitialize dynamic memory.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to deinitialize the dynamic memory of a doubly linked list.</li>
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* </ul>
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*
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* @param pool [IN] Starting address of memory.
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*
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* @retval #OS_ERROR The dynamic memory fails to be deinitialized.
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* @retval #LOS_OK The dynamic memory is successfully deinitialized.
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* @par Dependency:
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* <ul>
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* <li>los_memory.h: the header file that contains the API declaration.</li>
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* </ul>
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* @see None.
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*/
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extern UINT32 LOS_MemDeInit(VOID *pool);
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/**
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* @ingroup los_memory
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* @brief Print infomation about all pools.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to print infomation about all pools.</li>
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* </ul>
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*
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* @retval #UINT32 The pool number.
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* @par Dependency:
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* <ul>
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* <li>los_memory.h: the header file that contains the API declaration.</li>
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* </ul>
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* @see None.
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*/
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extern UINT32 LOS_MemPoolList(VOID);
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#endif
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/**
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* @ingroup los_memory
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* Memory pool extern information structure
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*/
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typedef struct {
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UINT32 totalUsedSize;
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UINT32 totalFreeSize;
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UINT32 maxFreeNodeSize;
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UINT32 usedNodeNum;
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UINT32 freeNodeNum;
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#if defined(OS_MEM_WATERLINE) && (OS_MEM_WATERLINE == YES)
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UINT32 usageWaterLine;
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#endif
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} LOS_MEM_POOL_STATUS;
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/**
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* @ingroup los_memory
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* @brief Initialize dynamic memory.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to initialize the dynamic memory of a doubly linked list.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The size parameter value should match the following two conditions :
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* 1) Be less than or equal to the Memory pool size;
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* 2) Be greater than the size of OS_MEM_MIN_POOL_SIZE.</li>
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* <li>Call this API when dynamic memory needs to be initialized during the startup of Huawei LiteOS.</li>
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* <li>The parameter input must be four byte-aligned.</li>
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* <li>The init area [pool, pool + size] should not conflict with other pools.</li>
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* </ul>
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*
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* @param pool [IN] Starting address of memory.
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* @param size [IN] Memory size.
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*
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* @retval #OS_ERROR The dynamic memory fails to be initialized.
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* @retval #LOS_OK The dynamic memory is successfully initialized.
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* @par Dependency:
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* <ul>
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* <li>los_memory.h: the header file that contains the API declaration.</li>
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* </ul>
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* @see None.
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*/
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extern UINT32 LOS_MemInit(VOID *pool, UINT32 size);
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/**
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* @ingroup los_memory
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* @brief Enable memory pool to support dynamic expansion.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to enable the dynamic memory to expand size dynamically.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The memory pool is default diabled dynamic expansion.
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* </ul>
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*
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* @param pool [IN] Starting address of memory.
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*
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* @retval node.
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* @par Dependency:
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* <ul>
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* <li>los_memory.h: the header file that contains the API declaration.</li>
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* </ul>
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* @see None.
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*/
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extern VOID LOS_MemExpandEnable(VOID *pool);
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/**
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* @ingroup los_memory
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* @brief Allocate dynamic memory.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to allocate a memory block of which the size is specified.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* <li>The size of the input parameter size can not be greater than the memory pool size that specified at the second
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* input parameter of LOS_MemInit.</li>
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* <li>The size of the input parameter size must be four byte-aligned.</li>
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* </ul>
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*
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* @param pool [IN] Pointer to the memory pool that contains the memory block to be allocated.
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* @param size [IN] Size of the memory block to be allocated (unit: byte).
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*
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* @retval #NULL The memory fails to be allocated.
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* @retval #VOID* The memory is successfully allocated with the starting address of the allocated memory block
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* returned.
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* @par Dependency:
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* <ul><li>los_memory.h: the header file that contains the API declaration.</li></ul>
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* @see LOS_MemRealloc | LOS_MemAllocAlign | LOS_MemFree
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*/
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extern VOID *LOS_MemAlloc(VOID *pool, UINT32 size);
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/**
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* @ingroup los_memory
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* @brief Free dynamic memory.
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*
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* @par Description:
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* <li>This API is used to free specified dynamic memory that has been allocated.</li>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* <li>The input ptr parameter must be allocated by LOS_MemAlloc or LOS_MemAllocAlign or LOS_MemRealloc.</li>
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* </ul>
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*
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* @param pool [IN] Pointer to the memory pool that contains the dynamic memory block to be freed.
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* @param ptr [IN] Starting address of the memory block to be freed.
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*
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* @retval #LOS_NOK The memory block fails to be freed because the starting address of the memory block is
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* invalid, or the memory overwriting occurs.
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* @retval #LOS_OK The memory block is successfully freed.
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* @par Dependency:
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* <ul><li>los_memory.h: the header file that contains the API declaration.</li></ul>
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* @see LOS_MemAlloc | LOS_MemRealloc | LOS_MemAllocAlign
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*/
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extern UINT32 LOS_MemFree(VOID *pool, VOID *ptr);
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/**
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* @ingroup los_memory
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* @brief Re-allocate a memory block.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to allocate a new memory block of which the size is specified by size if the original memory
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* block size is insufficient. The new memory block will copy the data in the original memory block of which the
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* address is specified by ptr. The size of the new memory block determines the maximum size of data to be copied.
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* After the new memory block is created, the original one is freed.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* <li>The input ptr parameter must be allocated by LOS_MemAlloc or LOS_MemAllocAlign.</li>
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* <li>The size of the input parameter size can not be greater than the memory pool size that specified at the second
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* input parameter of LOS_MemInit.</li>
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* <li>The size of the input parameter size must be aligned as follows: 1) if the ptr is allocated by LOS_MemAlloc,
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* it must be four byte-aligned; 2) if the ptr is allocated by LOS_MemAllocAlign, it must be aligned with the size of
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* the input parameter boundary of LOS_MemAllocAlign.</li>
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* </ul>
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*
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* @param pool [IN] Pointer to the memory pool that contains the original and new memory blocks.
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* @param ptr [IN] Address of the original memory block.
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* @param size [IN] Size of the new memory block.
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*
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* @retval #NULL The memory fails to be re-allocated.
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* @retval #VOID* The memory is successfully re-allocated with the starting address of the new memory block returned.
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* @par Dependency:
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* <ul><li>los_memory.h: the header file that contains the API declaration.</li></ul>
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* @see LOS_MemAlloc | LOS_MemAllocAlign | LOS_MemFree
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*/
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extern VOID *LOS_MemRealloc(VOID *pool, VOID *ptr, UINT32 size);
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/**
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* @ingroup los_memory
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* @brief Allocate aligned memory.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to allocate memory blocks of specified size and of which the starting addresses are aligned on
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* a specified boundary.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* <li>The size of the input parameter size can not be greater than the memory pool size that specified at the second
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* input parameter of LOS_MemInit.</li>
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* <li>The alignment parameter value must be a power of 2 with the minimum value being 4.</li>
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* </ul>
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*
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* @param pool [IN] Pointer to the memory pool that contains the memory blocks to be allocated.
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* @param size [IN] Size of the memory to be allocated.
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* @param boundary [IN] Boundary on which the memory is aligned.
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*
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* @retval #NULL The memory fails to be allocated.
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* @retval #VOID* The memory is successfully allocated with the starting address of the allocated memory returned.
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* @par Dependency:
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* <ul><li>los_memory.h: the header file that contains the API declaration.</li></ul>
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* @see LOS_MemAlloc | LOS_MemRealloc | LOS_MemFree
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*/
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extern VOID *LOS_MemAllocAlign(VOID *pool, UINT32 size, UINT32 boundary);
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/**
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* @ingroup los_memory
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* @brief Get the size of memory pool's size.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to get the size of memory pool' total size.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* </ul>
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*
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* @param pool [IN] A pointer pointed to the memory pool.
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*
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* @retval #LOS_NOK The incoming parameter pool is NULL.
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* @retval #UINT32 The size of the memory pool.
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* @par Dependency:
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* <ul><li>los_memory.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 LOS_MemPoolSizeGet(const VOID *pool);
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/**
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* @ingroup los_memory
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* @brief Get the size of memory totally used.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to get the size of memory totally used in memory pool.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* </ul>
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*
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* @param pool [IN] A pointer pointed to the memory pool.
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*
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* @retval #LOS_NOK The incoming parameter pool is NULL.
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* @retval #UINT32 The size of the memory pool used.
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* @par Dependency:
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* <ul><li>los_memory.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 LOS_MemTotalUsedGet(VOID *pool);
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/**
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* @ingroup los_memory
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* @brief Get the infomation of memory pool.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to get the infomation of memory pool.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* </ul>
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*
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* @param pool [IN] A pointer pointed to the memory pool.
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* @param poolStatus [IN] A pointer for storage the pool status
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*
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* @retval #LOS_NOK The incoming parameter pool is NULL or invalid.
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* @retval #LOS_OK Success to get memory infomation.
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* @par Dependency:
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* <ul><li>los_memory.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 LOS_MemInfoGet(VOID *pool, LOS_MEM_POOL_STATUS *poolStatus);
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/**
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* @ingroup los_memory
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* @brief Get the number of free node in every size.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to get the number of free node in every size.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* </ul>
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*
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* @param pool [IN] A pointer pointed to the memory pool.
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*
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* @retval #LOS_NOK The incoming parameter pool is NULL.
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* @retval #UINT32 The address of the last used node that casts to UINT32.
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* @par Dependency:
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* <ul><li>los_memory.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 LOS_MemFreeNodeShow(VOID *pool);
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/**
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* @ingroup los_memory
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* @brief Check the memory pool integrity.
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*
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* @par Description:
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* <ul>
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* <li>This API is used to check the memory pool integrity.</li>
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* </ul>
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* @attention
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* <ul>
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* <li>The input pool parameter must be initialized via func LOS_MemInit.</li>
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* <li>LOS_MemIntegrityCheck will be called by malloc function when the macro of LOSCFG_BASE_MEM_NODE_INTEGRITY_CHECK
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* is defined in LiteOS.</li>
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* <li>LOS_MemIntegrityCheck function can be called by user anytime.</li>
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* </ul>
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*
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* @param pool [IN] A pointer pointed to the memory pool.
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*
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* @retval #LOS_NOK The memory pool (pool) is impaired.
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* @retval #LOS_OK The memory pool (pool) is integrated.
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* @par Dependency:
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* <ul><li>los_memory.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 LOS_MemIntegrityCheck(const VOID *pool);
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extern void *boot_alloc_mem(size_t len);
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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_MEMORY_H */
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