Files
XCEngine/docs/api/threading/read-write-lock/readlock.md
ssdfasd d34d040563 Fix broken links in Threading API docs
Fix 14 broken cross-references in docs/api/threading/:
- lambda-task path: lambdatask -> lambda-task (5 occurrences)
- task-system-config path: tasksystemconfig -> task-system-config (6 occurrences)
- read-write-lock self-ref: readwritelock -> read-write-lock (6 occurrences)
- task-system cross-method: createtaskgroup/destroytaskgroup -> create-task-group/destroy-task-group
- thread cross-method: getcurrentid/getid -> get-current-id/get-id

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-26 01:30:37 +08:00

42 lines
856 B
Markdown

# ReadWriteLock::ReadLock
```cpp
void ReadLock()
```
获取读锁。如果有写者持有锁或正在等待写锁,当前线程将阻塞,直到所有写者完成。
**参数:**
**返回:**
**线程安全:**
**复杂度:** 平均 O(1)
**注意:**
- 多个读者可以同时持有读锁。
- 写锁具有优先权——正在等待的写者会阻塞新的读者,防止写者饥饿。
- 读锁不可重入,同一线程不可嵌套持有读锁。
**示例:**
```cpp
#include "XCEngine/Threading/ReadWriteLock.h"
XCEngine::Threading::ReadWriteLock rwLock;
int sharedValue = 0;
int ReadValue() {
rwLock.ReadLock();
int value = sharedValue;
rwLock.ReadUnlock();
return value;
}
```
## 相关文档
- [`ReadWriteLock`](read-write-lock.md) - 返回类总览
- [`ReadUnlock`](readunlock.md) - 释放读锁