Merge branch '4.6' of scm.dev.nokia.troll.no:qt/qt into 4.7

Conflicts:
	mkspecs/common/symbian/symbian.conf
	qmake/generators/symbian/symmake.cpp
	src/3rdparty/webkit/WebCore/WebCore.pro

3 files changed, 12 insertions, 1 deletions

diff --git a/src/network/access/qhttpnetworkconnectionchannel.cpp b/src/network/access/qhttpnetworkconnectionchannel.cpp
index 1d8224c..82bc14f 100644
--- a/src/network/access/qhttpnetworkconnectionchannel.cpp
+++ b/src/network/access/qhttpnetworkconnectionchannel.cpp
@@ -865,7 +865,14 @@ void QHttpNetworkConnectionChannel::_q_disconnected()
 void QHttpNetworkConnectionChannel::_q_connected()
 {
     // improve performance since we get the request sent by the kernel ASAP
-    socket->setSocketOption(QAbstractSocket::LowDelayOption, 1);
+    //socket->setSocketOption(QAbstractSocket::LowDelayOption, 1);
+    // We have this commented out now. It did not have the effect we wanted. If we want to
+    // do this properly, Qt has to combine multiple HTTP requests into one buffer
+    // and send this to the kernel in one syscall and then the kernel immediately sends
+    // it as one TCP packet because of TCP_NODELAY.
+    // However, this code is currently not in Qt, so we rely on the kernel combining
+    // the requests into one TCP packet.
+
     // not sure yet if it helps, but it makes sense
     socket->setSocketOption(QAbstractSocket::KeepAliveOption, 1);
 
diff --git a/src/network/kernel/qhostinfo.cpp b/src/network/kernel/qhostinfo.cpp
index 3d0c32d..baf69e7 100644
--- a/src/network/kernel/qhostinfo.cpp
+++ b/src/network/kernel/qhostinfo.cpp
@@ -479,6 +479,7 @@ void QHostInfoRunnable::run()
 QHostInfoLookupManager::QHostInfoLookupManager() : mutex(QMutex::Recursive), wasDeleted(false)
 {
     moveToThread(QCoreApplicationPrivate::mainThread());
+    connect(QCoreApplication::instance(), SIGNAL(destroyed()), SLOT(waitForThreadPoolDone()), Qt::DirectConnection);
     threadPool.setMaxThreadCount(5); // do 5 DNS lookups in parallel
 }
 
diff --git a/src/network/kernel/qhostinfo_p.h b/src/network/kernel/qhostinfo_p.h
index 2b26b07..4fc74e9 100644
--- a/src/network/kernel/qhostinfo_p.h
+++ b/src/network/kernel/qhostinfo_p.h
@@ -184,6 +184,9 @@ protected:
     QMutex mutex;
 
     bool wasDeleted;
+
+private slots:
+    void waitForThreadPoolDone() { threadPool.waitForDone(); }
 };
 
 #endif