Merge remote-tracking branch 'origin/5.3' into dev

Conflicts:
	src/network/ssl/qsslsocket_openssl_symbols.cpp

Change-Id: Ic62419fa1fee5f4de6c372459d72e6e16f9a810b

1 files changed, 19 insertions, 0 deletions

diff --git a/src/network/access/qnetworkreplyhttpimpl.cpp b/src/network/access/qnetworkreplyhttpimpl.cpp
index 3ac8b8f56f..c5cf849a55 100644
--- a/src/network/access/qnetworkreplyhttpimpl.cpp
+++ b/src/network/access/qnetworkreplyhttpimpl.cpp
@@ -867,6 +867,11 @@ void QNetworkReplyHttpImplPrivate::postRequest()
             forwardUploadDevice->setParent(delegate); // needed to make sure it is moved on moveToThread()
             delegate->httpRequest.setUploadByteDevice(forwardUploadDevice);
 
+            // If the device in the user thread claims it has more data, keep the flow to HTTP thread going
+            QObject::connect(uploadByteDevice.data(), SIGNAL(readyRead()),
+                             q, SLOT(uploadByteDeviceReadyReadSlot()),
+                             Qt::QueuedConnection);
+
             // From main thread to user thread:
             QObject::connect(q, SIGNAL(haveUploadData(QByteArray,bool,qint64)),
                              forwardUploadDevice, SLOT(haveDataSlot(QByteArray,bool,qint64)), Qt::QueuedConnection);
@@ -1288,6 +1293,13 @@ void QNetworkReplyHttpImplPrivate::wantUploadDataSlot(qint64 maxSize)
     // call readPointer
     qint64 currentUploadDataLength = 0;
     char *data = const_cast<char*>(uploadByteDevice->readPointer(maxSize, currentUploadDataLength));
+
+    if (currentUploadDataLength == 0) {
+        // No bytes from upload byte device. There will be bytes later, it will emit readyRead()
+        // and our uploadByteDeviceReadyReadSlot() is called.
+        return;
+    }
+
     // Let's make a copy of this data
     QByteArray dataArray(data, currentUploadDataLength);
 
@@ -1295,6 +1307,13 @@ void QNetworkReplyHttpImplPrivate::wantUploadDataSlot(qint64 maxSize)
     emit q->haveUploadData(dataArray, uploadByteDevice->atEnd(), uploadByteDevice->size());
 }
 
+void QNetworkReplyHttpImplPrivate::uploadByteDeviceReadyReadSlot()
+{
+    // Start the flow between this thread and the HTTP thread again by triggering a upload.
+    wantUploadDataSlot(1024);
+}
+
+
 /*
     A simple web page that can be used to test us: http://www.procata.com/cachetest/
  */