harmony 鸿蒙purgeable_memory.h

2023-06-24 浏览 (1029)

purgeable_memory.h

概述

声明从native层管理可丢弃内存的方法。

起始版本:

10

相关模块:

Memory

汇总

类型定义

名称描述
OH_PurgeableMemory用于定义OH_PurgeableMemory数据类型名称。
(*OH_PurgeableMemory_ModifyFunc) (void *, size_t, void *)用于重建可丢弃内存PurgeableMemory数据的方法。

函数

名称描述
*OH_PurgeableMemory_Create (size_t size, OH_PurgeableMemory_ModifyFunc func, void *funcPara)创建PurgeableMemory对象。
OH_PurgeableMemory_Destroy (OH_PurgeableMemory *purgObj)销毁PurgeableMemory对象。
OH_PurgeableMemory_BeginRead (OH_PurgeableMemory *purgObj)开始读取PurgeableMemory对象。检查PurgeableMemory是否被回收, 若被回收则调用重建方法进行重建
OH_PurgeableMemory_EndRead (OH_PurgeableMemory *purgObj)结束读取PurgeableMemory对象。表示系统可回收该PurgeableMemory对象内存数据。
OH_PurgeableMemory_BeginWrite (OH_PurgeableMemory *purgObj)开始修改PurgeableMemory对象。检查PurgeableMemory是否被回收, 若被回收则调用重建方法进行重建
OH_PurgeableMemory_EndWrite (OH_PurgeableMemory *purgObj)结束修改PurgeableMemory对象。表示系统可回收该PurgeableMemory对象内存数据。
OH_PurgeableMemory_GetContent (OH_PurgeableMemory *purgObj)获取PurgeableMemory对象内存数据。
OH_PurgeableMemory_ContentSize (OH_PurgeableMemory *purgObj)获取PurgeableMemory对象内存数据大小。
OH_PurgeableMemory_AppendModify (OH_PurgeableMemory *purgObj, OH_PurgeableMemory_ModifyFunc func, void *funcPara)添加PurgeableMemory对象的修改方法。

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