MiraiBot.EventLoop 可接受错误记录函数;

Author: cyanray

examples/RepeatMessage.cpp

@@ -42,7 +42,15 @@ int main()
 			tm.Reply(tm.MessageChain);
 		});
 
-	bot.EventLoop();
+
+	// 记录轮询事件时的错误
+	bot.EventLoop([](const char* errMsg) 
+		{
+			cout << "轮询事件时出错: " << errMsg << endl;
+		});
+
+	// 默认参数是在 cerr 输出错误
+	// bot.EventLoop();
 
 	return 0;
 }

include/mirai_bot.hpp

@@ -112,7 +112,7 @@ namespace Cyan
 			std::this_thread::sleep_for(std::chrono::milliseconds(ms));
 		}
 
-		void EventLoop();
+		void EventLoop(function<void(const char*)> errLogger = nullptr);
 
 	private:
 		bool SessionVerify();

src/mirai_bot.cpp

@@ -562,7 +562,7 @@ namespace Cyan
 	}
 
 
-	void MiraiBot::EventLoop()
+	void MiraiBot::EventLoop(function<void(const char*)> errLogger)
 	{
 		const unsigned count_per_loop = 20;
 		const unsigned time_interval = 100;
@@ -575,7 +575,14 @@ namespace Cyan
 			}
 			catch (const std::exception& ex)
 			{
-				std::cerr << ex.what() << std::endl;
+				if (errLogger == nullptr)
+				{
+					std::cerr << ex.what() << std::endl;
+				}
+				else
+				{
+					errLogger(ex.what());
+				}
 			}
 
 			if (count < count_per_loop)