ssdfasd
58a83f445a
- Fix link resolution with proper relative/absolute path handling - Improve link styling with underline decoration - Hide leaf nodes from tree, only show directories - Fix log file path for packaged app
37 lines
751 B
Markdown
37 lines
751 B
Markdown
# Mutex::TryLock
|
||
|
||
```cpp
|
||
bool TryLock()
|
||
```
|
||
|
||
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。
|
||
|
||
**参数：** 无
|
||
|
||
**返回：** `bool` - 获取成功返回 true，锁不可用返回 false
|
||
|
||
**复杂度：** O(1)
|
||
|
||
**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。
|
||
|
||
**示例：**
|
||
|
||
```cpp
|
||
Threading::Mutex mtx;
|
||
volatile bool updated = false;
|
||
|
||
void TryUpdate() {
|
||
if (mtx.TryLock()) {
|
||
updated = true;
|
||
mtx.Unlock();
|
||
printf("Update succeeded\n");
|
||
} else {
|
||
printf("Update skipped (lock held)\n");
|
||
}
|
||
}
|
||
```
|
||
|
||
## 相关文档
|
||
|
||
- [Mutex 总览](mutex.md) - 返回类总览
|