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XCSDD/docs/api/debug/filelogsink/flush.md
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# FileLogSink::Flush
```cpp
void Flush() override
```
刷新文件缓冲区,调用底层 `FileWriter` 的 flush 方法确保所有待写入的日志数据已实际写入磁盘。
**复杂度:** O(1)
**示例:**
```cpp
auto fileSink = std::make_unique<XCEngine::Debug::FileLogSink>("logs/app.log");
XCEngine::Debug::Logger::Get().AddSink(std::move(fileSink));
// 关键操作后立即刷新
XCEngine::Debug::Logger::Get().Info(XCEngine::Debug::LogCategory::General, "Checkpoint saved");
// 确保写入磁盘
XCEngine::Debug::Logger::Get().Flush();
```
## 相关文档
- [FileLogSink 总览](filelogsink.md) - 返回类总览