36 lines
757 B
Markdown
36 lines
757 B
Markdown
# LinearAllocator::GetTotalAllocated
|
||
|
||
```cpp
|
||
size_t GetTotalAllocated() const override;
|
||
```
|
||
|
||
返回自分配器创建以来的累计分配字节数。对于线性分配器，这等于当前已使用的字节数（`m_offset`）。
|
||
|
||
**参数：** 无
|
||
|
||
**返回：** 累计已分配的字节数
|
||
|
||
**复杂度：** O(1)
|
||
|
||
**示例：**
|
||
|
||
```cpp
|
||
#include <XCEngine/Memory/LinearAllocator.h>
|
||
|
||
LinearAllocator allocator(1024);
|
||
|
||
size_t total1 = allocator.GetTotalAllocated(); // 0
|
||
|
||
allocator.Allocate(256);
|
||
allocator.Allocate(128);
|
||
|
||
size_t total2 = allocator.GetTotalAllocated(); // 384
|
||
|
||
allocator.Clear();
|
||
|
||
size_t total3 = allocator.GetTotalAllocated(); // 0（Clear 后重置）
|
||
```
|
||
|
||
## 相关文档
|
||
|
||
- [LinearAllocator 总览](linear-allocator.md) - 返回类总览 |