Qt通信架构 1、模块件采用单例直接访问对方的接口接口尽量采用同步设计所以调用方需要在线程中调用接口2、模块内部采用invoke访问工作线程的接口3、invoke封装/// 异步调用拉姆达 template typename Func bool invokeAsync(QObject* obj, Func func) { if (!obj) {QLOG_ERROR()invokeAsync failed, obj is null;return false;} return QMetaObject::invokeMethod(obj, std::forwardFunc(func), Qt::QueuedConnection); //直接返回, 异步执行func } /// 同步调用拉姆达 template typename Func bool invokeSync(QObject* obj, Func func) { if (!obj) {QLOG_ERROR()invokeSync failed, obj is null;return false;} if (obj-thread() QThread::currentThread()) { return QMetaObject::invokeMethod(obj, std::forwardFunc(func), Qt::DirectConnection); //直接调用阻塞fun执行完成 } else { return QMetaObject::invokeMethod(obj, std::forwardFunc(func), Qt::BlockingQueuedConnection);//当前线程阻塞, 等待obj线程执行fun完成 } } /// 异步调用函数指针 template typename Func, typename... Args bool invokeAsync(QObject* obj, Func func, Args...args) { if (!obj) {QLOG_ERROR()invokeAsync failed, obj is null;return false;} return QMetaObject::invokeMethod(obj, func, Qt::QueuedConnection, std::forwardArgs(args)...); } /// 同步调用函数指针, 带返回值 template typename Func, typename Ret, typename... Args bool invokeSync(QObject* obj, Func func, Ret ret, Args...args) { if (!obj) {QLOG_ERROR()invokeSync failed, obj is null;return false;} if (obj-thread() QThread::currentThread()) { return QMetaObject::invokeMethod(obj, func, Qt::DirectConnection, Q_RETURN_ARG(Ret, ret), std::forwardArgs(args)...); } else { return QMetaObject::invokeMethod(obj, func, Qt::BlockingQueuedConnection, Q_RETURN_ARG(Ret, ret), std::forwardArgs(args)...); } } /// 同步调用函数指针, 不带返回值 template typename Func, typename... Args bool invokeSync(QObject* obj, Func func, Args...args) { if (!obj) {QLOG_ERROR()invokeSync failed, obj is null;return false;} if (obj-thread() QThread::currentThread()) { return QMetaObject::invokeMethod(obj, func, Qt::DirectConnection, std::forwardArgs(args)...); } else { return QMetaObject::invokeMethod(obj, func, Qt::BlockingQueuedConnection, std::forwardArgs(args)...); } }