37 lines
751 B
Markdown
37 lines
751 B
Markdown
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# Mutex::TryLock
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```cpp
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bool TryLock()
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```
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尝试获取互斥锁（非阻塞）。如果锁可用则立即获取并返回 true，否则立即返回 false 而不阻塞。
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**参数：** 无
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**返回：** `bool` - 获取成功返回 true，锁不可用返回 false
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**复杂度：** O(1)
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**使用场景：** 适用于需要尝试获取锁但不希望阻塞的场景，如实现无锁算法或避免死锁。
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**示例：**
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```cpp
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Threading::Mutex mtx;
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volatile bool updated = false;
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void TryUpdate() {
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if (mtx.TryLock()) {
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updated = true;
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mtx.Unlock();
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printf("Update succeeded\n");
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} else {
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printf("Update skipped (lock held)\n");
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}
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}
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```
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## 相关文档
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- [Mutex 总览](mutex.md) - 返回类总览
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