46 lines
977 B
Markdown
46 lines
977 B
Markdown
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# Event::Invoke
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```cpp
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void Invoke(Args... args);
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```
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调用所有订阅的回调。
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**描述**
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依次调用所有已订阅的回调函数。在调用前会自动处理待退订的回调。回调是在锁外执行的，因此可以在回调中安全地进行订阅/退订操作。线程安全。
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**参数：**
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- `args` - 传递给回调的参数
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**复杂度：** O(n) 其中 n 为订阅数量
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**示例：**
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```cpp
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#include <XCEngine/Core/Event.h>
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using namespace XCEngine::Core;
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// 无参数事件
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Event<> frameEndEvent;
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frameEndEvent.Subscribe([]() {
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printf("Frame ended\n");
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});
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// 带参数事件
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Event<int, const char*> playerDiedEvent;
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playerDiedEvent.Subscribe([](int playerId, const char* reason) {
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printf("Player %d died: %s\n", playerId, reason);
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});
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// 触发事件
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frameEndEvent.Invoke();
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playerDiedEvent.Invoke(1, "fell off a cliff");
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```
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## 相关文档
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- [Event 总览](event.md) - 返回类总览
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- [Subscribe](Subscribe.md) - 订阅事件
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