XCEngine/docs/api/threading/read-write-lock/constructor.md

# ReadWriteLock::ReadWriteLock

```cpp
ReadWriteLock() = default;
```

默认构造函数。构造一个未锁定的读写锁。

**参数：** 无

**返回：** 无

**线程安全：** ✅

**复杂度：** O(1)

**注意：**
- 构造后的锁处于未锁定状态。
- 多个线程可以同时获取读锁。

**示例：**

```cpp
#include "XCEngine/Threading/ReadWriteLock.h"

XCEngine::Threading::ReadWriteLock rwLock;
```

## 相关文档

- [`ReadWriteLock`](read-write-lock.md) - 返回类总览
- [`ReadLock`](readlock.md) - 获取读锁
- [`ReadUnlock`](readunlock.md) - 释放读锁
- [`WriteLock`](writelock.md) - 获取写锁
- [`WriteUnlock`](writeunlock.md) - 释放写锁