38 lines
941 B
Markdown
38 lines
941 B
Markdown
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# MemoryManager::CreatePoolAllocator
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```cpp
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std::unique_ptr<PoolAllocator> CreatePoolAllocator(size_t blockSize, size_t count);
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```
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创建并返回一个新的 PoolAllocator 实例，使用系统分配器作为底层。返回的 `unique_ptr` 管理分配器生命周期。
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**参数：**
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- `blockSize` - 每个内存块的大小（字节）
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- `count` - 内存池中块的数量
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**返回：** PoolAllocator 的 unique_ptr
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**复杂度：** O(blockSize * count)
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**示例：**
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```cpp
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#include <XCEngine/Memory/MemoryManager.h>
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struct Particle {
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float x, y, z;
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float life;
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};
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auto pool = MemoryManager::Get().CreatePoolAllocator(sizeof(Particle), 1000);
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void* block = pool->Allocate();
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auto* p = new (block) Particle{1.0f, 2.0f, 3.0f, 5.0f};
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p->~Particle();
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pool->Free(block);
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```
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## 相关文档
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- [MemoryManager 总览](manager.md) - 返回类总览
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- [PoolAllocator](../pool-allocator/pool-allocator.md) - 内存池分配器
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