Fixes: 监听 Socket 状态时，主动关闭会导致卡死问题;

FMVip/fmvipdispatcher.cpp

@@ -10,6 +10,8 @@
 #include <QApplication>
 #include <QMessageBox>
 #include <QMenu>
+#include <QTimer>
+#include <winsock2.h>
 
 FMVipDispatcher::FMVipDispatcher(QObject *parent)
     : QObject(parent),
@@ -17,14 +19,17 @@ FMVipDispatcher::FMVipDispatcher(QObject *parent)
       _vindow(0),
       isLastOne(true),
       _windowReturn(0),
-      _posSocket(new QTcpSocket(this)),
+      _posSocketTimer(new QTimer(this)),
       _sysIcon(new QSystemTrayIcon)
 {
     connect(this, SIGNAL(requested(QJsonObject)), SLOT(onRequest(QJsonObject)));
     connect(this, SIGNAL(responded(QByteArray)), SLOT(onResponse(QByteArray)));
     connect(FMVipForward::instance(), SIGNAL(serverResponsed(QJsonObject)), SLOT(onServerResponsed(QJsonObject)));
 
-    connect(this, SIGNAL(initSocket()),this, SLOT(onInitSocket()));
+    _posSocketTimer->setInterval(5000);
+    connect(_posSocketTimer, SIGNAL(timeout()), SLOT(onCheckSocket()));
+    connect(this, SIGNAL(stopSocketTimer()), _posSocketTimer, SLOT(stop()));
+    connect(this, SIGNAL(startSocketTimer()), _posSocketTimer, SLOT(start()));
 
     QIcon icon = QIcon(":/img_logo.png");
     _sysIcon->setIcon(icon);
@@ -50,9 +55,9 @@ FMVipDispatcher::~FMVipDispatcher()
         _sysIcon = NULL;
     }
 
-    if(_posSocket != nullptr) {
-        delete _posSocket;
-        _posSocket = nullptr;
+    if(_posSocketTimer != nullptr) {
+        delete _posSocketTimer;
+        _posSocketTimer = nullptr;
     }
 
 }
@@ -91,16 +96,13 @@ INT FMVipDispatcher::_ParseRequest(LPSTR data)
     // 唤起客户端界面
     emit requested(_posReqObj);
 
-
     return FM_API_SUCCESS;
 }
 
 BOOL FMVipDispatcher::_GetResponse(LPSTR &rsp, UINT &len)
 {
+    emit startSocketTimer();
     mutex.lock();
-
-    emit initSocket();
-
     if(_serverRspData.isEmpty())
     {
         // 服务器还未返回则一直阻塞
@@ -112,6 +114,8 @@ BOOL FMVipDispatcher::_GetResponse(LPSTR &rsp, UINT &len)
 
     qDebug() << "发给POS:" << rsp;
 
+    emit stopSocketTimer();
+
     return 1;
 }
 
@@ -334,10 +338,31 @@ BOOL FMVipDispatcher::isLogined()
     return account != "";
 }
 
-void FMVipDispatcher::onInitSocket()
+void FMVipDispatcher::onCheckSocket()
 {
-    _posSocket->setSocketDescriptor(_socket);
-    connect(_posSocket, SIGNAL(error(QAbstractSocket::SocketError)), this, SLOT(onDisconnected()), Qt::UniqueConnection);
+    if(_socket <=0 ) {
+        emit stopSocketTimer();
+        return;
+    }
+
+    WORD wVersionRequested;
+    WSADATA wsaData;
+
+    wVersionRequested = MAKEWORD(2, 2);
+    WSAStartup(wVersionRequested, &wsaData);
+
+    HANDLE closeEvent = WSACreateEvent();
+    WSAEventSelect(_socket, closeEvent, FD_CLOSE);
+
+    DWORD dwRet = WaitForSingleObject(closeEvent, 0);
+
+    if(dwRet == WSA_WAIT_EVENT_0) {
+        onDisconnected();
+    }
+
+    WSACloseEvent(closeEvent);
+
+    WSACleanup();
 }
 
 void FMVipDispatcher::onDisconnected()

FMVip/fmvipdispatcher.h

@@ -41,8 +41,8 @@ protected:
 signals:
     void                requested(const QJsonObject &);
     void                responded(const QByteArray &);
-
-    void                initSocket();
+    void                startSocketTimer();
+    void                stopSocketTimer();
 
 private slots:
     void                onRequest(const QJsonObject &jsonObj);
@@ -53,7 +53,7 @@ private slots:
 
     void                onDoPost();
 
-    void                onInitSocket();
+    void                onCheckSocket();
     void                onDisconnected();
 
     void                onActiveSysTrayIcon(QSystemTrayIcon::ActivationReason);
@@ -68,7 +68,7 @@ private:
 
     QSystemTrayIcon    *_sysIcon;
 
-    QTcpSocket         *_posSocket;
+    QTimer             *_posSocketTimer;
 
     QMutex              mutex;
     QWaitCondition      serverIsBusy;