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79 lines
2.8 KiB
C
79 lines
2.8 KiB
C
/*
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* Copyright (c) 2022 OpenLuat & AirM2M
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef LUAT_MEM_H
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#define LUAT_MEM_H
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/**
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* @defgroup luatos_mem 内存管理
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* @{
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*/
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#include "stdint.h"
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/**
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* @brief 在堆区分配一块指定大小的内存空间，用来存放数据
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*
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* @param len 开辟内存的长度大小
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* @return NULL 失败 !NULL 成功
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*/
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void* luat_heap_malloc(size_t len);
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/**
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* @brief 释放ptr所指向的内存块,释放的是动态分配的内存空间
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*
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* @param ptr 所指向的内存块
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*/
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void luat_heap_free(void* ptr);
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/**
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* @brief 重新分配内存，把内存扩展到 len
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*
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* @param ptr 所指向的内存块
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* @param len 长度
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*/
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void* luat_heap_realloc(void* ptr, size_t len);
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/**
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* @brief 在内存中动态地分配 count 个长度为 size_t 的连续空间，并将每一个字节都初始化为 0
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*
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* @param count 长度
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* @param _size 数据类型
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* @return NULL 失败 ，!NULL 成功
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*/
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void* luat_heap_calloc(size_t count, size_t _size);
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/**
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* @brief 获取内存使用信息
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*
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* @param[out] total 模组总的的内存大小
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* @param[out] used 获取当前已分配的内存堆大小
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* @param[out] max_used 获取当前最大已分配的内存堆大小
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*/
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void luat_meminfo_sys(size_t* total, size_t* used, size_t* max_used);
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#define LUAT_MEM_MALLOC luat_heap_malloc ///< 在堆区分配一块指定大小的内存空间，用来存放数据
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#define LUAT_MEM_FREE luat_heap_free ///< 释放ptr所指向的内存块,释放的是动态分配的内存空间
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#define LUAT_MEM_REALLOC luat_heap_realloc ///< 重新分配内存，把内存扩展到 len
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#define LUAT_MEM_CALLOC luat_heap_calloc ///< 在内存中动态地分配 count 个长度为 size_t 的连续空间，并将每一个字节都初始化为 0
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#define LUAT_MEM_INFO luat_meminfo_sys ///< 获取内存使用信息
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/**
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* @}
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*/
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#endif |