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# Mutex
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**命名空间**: `XCEngine::Threading`
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**类型**: `class`
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**头文件**: `XCEngine/Threading/Mutex.h`
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**描述**: 互斥锁封装类,基于 `std::mutex` 实现,提供线程安全的互斥访问。
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## 概述
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`Mutex` 是对 `std::mutex` 的简单封装,提供了标准的 Lock/Unlock/TryLock 接口。它是 XCEngine 中最基础的同步原语,适用于保护共享数据的访问。
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## 公共方法
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| 方法 | 描述 |
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|------|------|
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| [`Lock`](lock.md) | 获取锁(阻塞) |
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| [`Unlock`](unlock.md) | 释放锁 |
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| [`TryLock`](trylock.md) | 尝试获取锁(非阻塞,成功返回 true) |
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## STL 兼容方法
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支持 `lock()`, `unlock()`, `try_lock()` 以兼容 STL 的 lockable 概念。**注意**:这些方法为 `const` 成员函数。
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## 使用示例
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```cpp
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Threading::Mutex mtx;
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int sharedData = 0;
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// 线程安全地修改共享数据
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void SafeIncrement() {
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mtx.Lock();
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++sharedData;
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mtx.Unlock();
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}
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// 或使用 TryLock
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void SafeTryIncrement() {
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if (mtx.TryLock()) {
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++sharedData;
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mtx.Unlock();
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}
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}
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```
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## 相关文档
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- [SpinLock](../spinlock/spinlock.md) - 自旋锁
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- [ReadWriteLock](../readwritelock/readwritelock.md) - 读写锁
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- [TaskSystem](../task-system/task-system.md) - 任务系统
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- [../threading/threading.md](../threading.md) - 模块总览
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