Files
XCEngine/docs/api/memory/allocator/get-allocation-count.md
ssdfasd a9f882f233 docs: 修正 API 文档准确性 (第二轮检查)
修复的问题:
- math: 修复 Quaternion::Normalize 链接错误
- containers: HashMap 迭代器示例使用不存在的 cbegin/cend,删除冗余构造函数声明
- core: RefCounted 析构函数访问级别修正 (protected)
- debug: LogLevelToString 示例返回值大小写修正
- memory: 修正 LinearAllocator::Reallocate 返回 nullptr,ProxyAllocator 统计描述,头文件路径 IAllocator.h -> Allocator.h
- resources: Texture::Create mipLevels 参数描述修正
- rhi: 修复多处链接错误,新增缺失的方法文档
- threading: TaskSystem 配置项未实现状态标注,Wait 方法空实现标注
2026-03-19 00:31:14 +08:00

1.2 KiB

IAllocator::GetAllocationCount

virtual size_t GetAllocationCount() const = 0;

返回当前处于已分配状态(未释放)的内存块数量。此方法用于监控活跃分配的数量。

参数:

返回: 当前已分配块的数量

复杂度: O(1)

示例:

#include <XCEngine/Memory/Allocator.h>

class MyAllocator : public IAllocator {
    size_t m_count = 0;
public:
    void* Allocate(size_t size, size_t alignment = 0) override {
        ++m_count;
        return ::operator new(size);
    }
    
    void Free(void* ptr) override {
        if (ptr) {
            --m_count;
            ::operator delete(ptr);
        }
    }
    
    void* Reallocate(void* ptr, size_t newSize) override { /* ... */ }
    
    size_t GetTotalAllocated() const override { return 0; }
    size_t GetTotalFreed() const override { return 0; }
    size_t GetPeakAllocated() const override { return 0; }
    size_t GetAllocationCount() const override { return m_count; }
    const char* GetName() const override { return "MyAllocator"; }
};

MyAllocator alloc;
alloc.Allocate(64);
alloc.Allocate(128);
size_t count = alloc.GetAllocationCount(); // 返回 2

相关文档