ssdfasd
7dd7858ef2
- Fix SpinLock docs: clarify lock()/unlock()/try_lock() are non-const (matching source implementation in SpinLock.h) - Add missing LambdaTask::Execute() method to inherited methods table - Update TaskGroup::Wait() docs: clarify m_pendingCount never decrements causing indefinite block even after all tasks complete (not just unexecuted tasks) - Update TaskGroup::IsComplete() docs: document same m_pendingCount issue causing incorrect return values
42 lines
953 B
Markdown
42 lines
953 B
Markdown
# TaskGroup::Wait
|
||
|
||
```cpp
|
||
void Wait()
|
||
```
|
||
|
||
阻塞当前线程，等待任务组中所有任务完成。
|
||
|
||
**参数：** 无
|
||
|
||
**返回：** 无
|
||
|
||
**复杂度：** O(n)，n 为任务数量
|
||
|
||
**注意：**
|
||
- 如果任务组已被取消，此方法将立即返回。
|
||
- **警告**：由于实现缺陷，`m_pendingCount` 计数器在任务完成后不会递减，导致 `Wait()` 在所有任务执行完毕后仍会永久阻塞。这是当前实现的已知问题。
|
||
- 建议使用 `WaitFor()` 代替以避免永久阻塞。
|
||
|
||
**示例：**
|
||
|
||
```cpp
|
||
TaskGroup* group = TaskSystem::Get().CreateTaskGroup();
|
||
|
||
for (int i = 0; i < 10; ++i) {
|
||
group->AddTask([i]() {
|
||
printf("Task %d running\n", i);
|
||
});
|
||
}
|
||
|
||
printf("Waiting for all tasks...\n");
|
||
group->Wait();
|
||
printf("All tasks completed!\n");
|
||
|
||
TaskSystem::Get().DestroyTaskGroup(group);
|
||
```
|
||
|
||
## 相关文档
|
||
|
||
- [TaskGroup 总览](task-group.md) - 返回类总览
|
||
- [WaitFor](waitfor.md) - 超时等待
|