ssdfasd
dc850d7739
- 重组文档目录结构: 每个模块的概述页移动到模块子目录 - 重命名 index.md 为 main.md - 修正所有模块文档中的错误: - math: FromEuler→FromEulerAngles, TransformDirection 包含缩放, Box 是 OBB, Color::ToRGBA 格式 - containers: 新增 operator==/!= 文档, 补充 std::hash DJB 算法细节 - core: 修复 types 链接错误 - debug: LogLevelToString 返回大写, timestamp 是秒, Profiler 空实现标注, Windows API vs ANSI - memory: 修复头文件路径, malloc vs operator new, 新增方法文档 - resources: 修复 Shader/Texture 链接错误 - threading: TaskSystem::Wait 空实现标注, ReadWriteLock 重入描述, LambdaTask 链接 - 验证: fix_links.py 确认 0 个断裂引用
51 lines
1.3 KiB
Markdown
51 lines
1.3 KiB
Markdown
# IAllocator::GetTotalFreed
|
||
|
||
```cpp
|
||
virtual size_t GetTotalFreed() const = 0;
|
||
```
|
||
|
||
返回此分配器自创建以来累计释放的字节总数。部分分配器（如 LinearAllocator）可能始终返回 0，因为它们不跟踪单个释放操作。
|
||
|
||
**参数：** 无
|
||
|
||
**返回：** 累计已释放的字节数
|
||
|
||
**复杂度：** O(1)
|
||
|
||
**示例：**
|
||
|
||
```cpp
|
||
#include <XCEngine/Memory/IAllocator.h>
|
||
|
||
class MyAllocator : public IAllocator {
|
||
size_t m_freed = 0;
|
||
public:
|
||
void* Allocate(size_t size, size_t alignment = 0) override { return ::operator new(size); }
|
||
|
||
void Free(void* ptr) override {
|
||
if (ptr) {
|
||
size_t size = 256; // 需要外部记录
|
||
::operator delete(ptr);
|
||
m_freed += size;
|
||
}
|
||
}
|
||
|
||
void* Reallocate(void* ptr, size_t newSize) override { /* ... */ }
|
||
|
||
size_t GetTotalAllocated() const override { return 0; }
|
||
size_t GetTotalFreed() const override { return m_freed; }
|
||
size_t GetPeakAllocated() const override { return 0; }
|
||
size_t GetAllocationCount() const override { return 0; }
|
||
const char* GetName() const override { return "MyAllocator"; }
|
||
};
|
||
|
||
MyAllocator alloc;
|
||
void* ptr = alloc.Allocate(128);
|
||
alloc.Free(ptr);
|
||
size_t freed = alloc.GetTotalFreed(); // 返回 128
|
||
```
|
||
|
||
## 相关文档
|
||
|
||
- [IAllocator 总览](allocator.md) - 返回类总览
|