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750 B
750 B
PoolAllocator::GetFreeBlockCount
size_t GetFreeBlockCount() const;
返回当前空闲块的的数量。每次 Allocate 成功后减 1,每次 Free 后加 1。
参数: 无
返回: 当前可分配的空闲块数量
复杂度: O(1)
示例:
#include <XCEngine/Memory/PoolAllocator.h>
PoolAllocator pool(sizeof(int), 100);
size_t initial = pool.GetFreeBlockCount(); // 100
void* blocks[10];
for (int i = 0; i < 10; ++i) {
blocks[i] = pool.Allocate();
}
size_t after = pool.GetFreeBlockCount(); // 90
for (int i = 0; i < 5; ++i) {
pool.Free(blocks[i]);
}
size_t final = pool.GetFreeBlockCount(); // 95
相关文档
- PoolAllocator 总览 - 返回类总览