- Rename D3D12Enum.h to D3D12Enums.h for naming consistency - Fix OpenGL unit test GLAD initialization by using gladLoadGL() instead of gladLoadGLLoader(wglGetProcAddress) for fallback support - Migrate remaining tests to use gtest_discover_tests for granular test discovery (math, core, containers, memory, threading, debug, components, scene, resources, input, opengl) - Remove obsolete TEST_RESOURCES_DIR and copy_directory commands from OpenGL unit test CMakeLists (minimal/Res doesn't exist) - Update TEST_SPEC.md with performance metrics and per-module build/test commands for faster development workflow - Update CMake path references to use lowercase paths
42 lines
854 B
Markdown
42 lines
854 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:** 无
|
|
|
|
**返回:** 无
|
|
|
|
**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`](readwritelock.md) - 返回类总览
|
|
- [`ReadUnlock`](readunlock.md) - 释放读锁
|