QtNetwork: port remaining uses of QMutex::Recursive to QRecursiveMutex

In one case, added NSDMI to avoid churning the ctor-init-list.

Change-Id: I5587d5cb7e393f60ad29cb5186127304d27d1d46
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/network/access/qnetworkaccessbackend.cpp

@@ -58,7 +58,7 @@ QT_BEGIN_NAMESPACE
 class QNetworkAccessBackendFactoryData: public QList<QNetworkAccessBackendFactory *>
 {
 public:
-    QNetworkAccessBackendFactoryData() : mutex(QMutex::Recursive)
+    QNetworkAccessBackendFactoryData()
     {
         valid.ref();
     }
@@ -68,7 +68,7 @@ public:
         valid.deref();
     }
 
-    QMutex mutex;
+    QRecursiveMutex mutex;
     //this is used to avoid (re)constructing factory data from destructors of other global classes
     static QBasicAtomicInt valid;
 };

src/network/kernel/qhostinfo.cpp

@@ -891,7 +891,7 @@ void QHostInfoRunnable::run()
     // thread goes back to QThreadPool
 }
 
-QHostInfoLookupManager::QHostInfoLookupManager() : mutex(QMutex::Recursive), wasDeleted(false)
+QHostInfoLookupManager::QHostInfoLookupManager() : wasDeleted(false)
 {
     moveToThread(QCoreApplicationPrivate::mainThread());
 #if QT_CONFIG(thread)

src/network/kernel/qhostinfo_p.h

@@ -252,7 +252,7 @@ protected:
 #if QT_CONFIG(thread)
     QThreadPool threadPool;
 #endif
-    QMutex mutex;
+    QRecursiveMutex mutex;
 
     bool wasDeleted;
 

src/network/kernel/qnetworkproxy.cpp

@@ -254,8 +254,7 @@ class QGlobalNetworkProxy
 {
 public:
     QGlobalNetworkProxy()
-        : mutex(QMutex::Recursive)
-        , applicationLevelProxy(0)
+        : applicationLevelProxy(0)
         , applicationLevelProxyFactory(0)
 #if QT_CONFIG(socks5)
         , socks5SocketEngineHandler(0)
@@ -338,7 +337,7 @@ public:
     QList<QNetworkProxy> proxyForQuery(const QNetworkProxyQuery &query);
 
 private:
-    QMutex mutex;
+    QRecursiveMutex mutex;
     QNetworkProxy *applicationLevelProxy;
     QNetworkProxyFactory *applicationLevelProxyFactory;
 #if QT_CONFIG(socks5)

src/network/socket/qsocks5socketengine.cpp

@@ -322,8 +322,8 @@ public:
 protected:
     void timerEvent(QTimerEvent * event) override;
 
-    QMutex mutex;
-    int sweepTimerId;
+    QRecursiveMutex mutex;
+    int sweepTimerId = -1;
     //socket descriptor, data, timestamp
     QHash<int, QSocks5BindData *> store;
 };
@@ -331,8 +331,6 @@ protected:
 Q_GLOBAL_STATIC(QSocks5BindStore, socks5BindStore)
 
 QSocks5BindStore::QSocks5BindStore()
-    : mutex(QMutex::Recursive)
-    , sweepTimerId(-1)
 {
     QCoreApplication *app = QCoreApplication::instance();
     if (app && app->thread() != thread())