36 lines
740 B
Markdown
36 lines
740 B
Markdown
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# ReadWriteLock::WriteLock
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```cpp
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void WriteLock()
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```
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获取写锁（独占）。如果有读者持有锁或有其他写者正在等待，当前线程将阻塞，直到获得独占访问权。
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**参数：** 无
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**返回：** 无
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**复杂度：** 平均 O(1)，写者饥饿时可能 O(n)
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**注意：**
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- 写锁为独占访问，持有期间不允许任何读锁或写锁。
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- 写锁具有优先权，会阻塞后续到达的读者。
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- 同一线程不可重复 WriteLock。
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**示例：**
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```cpp
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ReadWriteLock rwLock;
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std::vector<int> buffer;
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void Append(int value) {
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rwLock.WriteLock();
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buffer.push_back(value);
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rwLock.WriteUnlock();
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}
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```
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## 相关文档
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- [ReadWriteLock 总览](readwritelock.md) - 返回类总览
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