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33 lines
540 B
Markdown
33 lines
540 B
Markdown
# ReadWriteLock::WriteUnlock
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```cpp
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void WriteUnlock()
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```
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释放写锁。唤醒所有等待中的读者和下一个写者。
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**参数：** 无
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**返回：** 无
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**复杂度：** O(1)
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**注意：** 必须在持有写锁的线程中调用。
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**示例：**
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```cpp
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ReadWriteLock rwLock;
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std::unordered_map<String, int> cache;
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void UpdateCache(const String& key, int value) {
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rwLock.WriteLock();
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cache[key] = 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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