Merge remote branch 'origin/4.7' into qt-master-from-4.7

Conflicts:
	qmake/generators/symbian/symmake.cpp
	src/corelib/global/qglobal.h
	src/gui/kernel/qwidget_p.h
	src/gui/painting/qtextureglyphcache.cpp
	src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
	src/opengl/gl2paintengineex/qtextureglyphcache_gl.cpp
	src/opengl/gl2paintengineex/qtextureglyphcache_gl_p.h
	src/plugins/qpluginbase.pri
	src/qbase.pri
	tests/auto/qgraphicsgridlayout/tst_qgraphicsgridlayout.cpp
	tests/auto/qthread/tst_qthread.cpp
	tests/auto/selftests/expected_cmptest.txt
	tests/auto/selftests/expected_crashes_3.txt
	tests/auto/selftests/expected_longstring.txt
	tests/auto/selftests/expected_maxwarnings.txt
	tests/auto/selftests/expected_skip.txt
	tools/assistant/tools/assistant/doc/assistant.qdocconf
	tools/qdoc3/test/assistant.qdocconf
	tools/qdoc3/test/designer.qdocconf
	tools/qdoc3/test/linguist.qdocconf
	tools/qdoc3/test/qdeclarative.qdocconf
	tools/qdoc3/test/qmake.qdocconf
	tools/qdoc3/test/qt-build-docs.qdocconf
	tools/qdoc3/test/qt-build-docs_ja_JP.qdocconf
	tools/qdoc3/test/qt-build-docs_zh_CN.qdocconf
	tools/qdoc3/test/qt.qdocconf
	tools/qdoc3/test/qt_ja_JP.qdocconf
	tools/qdoc3/test/qt_zh_CN.qdocconf

8 files changed, 72 insertions, 24 deletions

diff --git a/src/corelib/global/global.pri b/src/corelib/global/global.pri
index 47b82ef..8eae391 100644
--- a/src/corelib/global/global.pri
+++ b/src/corelib/global/global.pri
@@ -31,3 +31,5 @@ linux*:!static:!symbian-armcc:!symbian-gcce {
 
 # Compensate for lack of platform defines in Symbian3 and Symbian4
 symbian: DEFINES += SYMBIAN_VERSION_$$upper($$replace(SYMBIAN_VERSION,\\.,_))
+
+include(../../../tools/shared/symbian/epocroot.pri)
diff --git a/src/corelib/global/qlibraryinfo.cpp b/src/corelib/global/qlibraryinfo.cpp
index d493390..8b2ab5a 100644
--- a/src/corelib/global/qlibraryinfo.cpp
+++ b/src/corelib/global/qlibraryinfo.cpp
@@ -62,6 +62,10 @@ QT_END_NAMESPACE
 #  include "private/qcore_mac_p.h"
 #endif
 
+#ifdef QLIBRARYINFO_EPOCROOT
+# include "symbian/epocroot_p.h"
+#endif
+
 #include "qconfig.cpp"
 
 QT_BEGIN_NAMESPACE
@@ -433,6 +437,14 @@ QLibraryInfo::location(LibraryLocation loc)
                             QString::fromLocal8Bit(qgetenv(ret.mid(rep + 2,
                                 reg_var.matchedLength() - 3).toLatin1().constData()).constData()));
             }
+
+#ifdef QLIBRARYINFO_EPOCROOT
+            // $${EPOCROOT} is a special case, resolve it similarly to qmake.
+            QRegExp epocrootMatcher(QLatin1String("\\$\\$\\{EPOCROOT\\}"));
+            if ((rep = epocrootMatcher.indexIn(ret)) != -1)
+                ret.replace(rep, epocrootMatcher.matchedLength(), qt_epocRoot());
+#endif
+
             config->endGroup();
         }
     }
diff --git a/src/corelib/io/qiodevice.cpp b/src/corelib/io/qiodevice.cpp
index 8544fba..f8eb886 100644
--- a/src/corelib/io/qiodevice.cpp
+++ b/src/corelib/io/qiodevice.cpp
@@ -395,7 +395,10 @@ QIODevice::QIODevice(QIODevicePrivate &dd, QObject *parent)
 
 
 /*!
-    Destructs the QIODevice object.
+  The destructor is virtual, and QIODevice is an abstract base
+  class. This destructor does not call close(), but the subclass
+  destructor might. If you are in doubt, call close() before
+  destroying the QIODevice.
 */
 QIODevice::~QIODevice()
 {
diff --git a/src/corelib/kernel/qeventdispatcher_win.cpp b/src/corelib/kernel/qeventdispatcher_win.cpp
index aa7e32f..91c20b5 100644
--- a/src/corelib/kernel/qeventdispatcher_win.cpp
+++ b/src/corelib/kernel/qeventdispatcher_win.cpp
@@ -86,7 +86,8 @@ extern uint qGlobalPostedEventsCount();
 
 enum {
     WM_QT_SOCKETNOTIFIER = WM_USER,
-    WM_QT_SENDPOSTEDEVENTS = WM_USER + 1
+    WM_QT_SENDPOSTEDEVENTS = WM_USER + 1,
+    SendPostedEventsWindowsTimerId = ~1u
 };
 
 #if defined(Q_OS_WINCE)
@@ -355,7 +356,7 @@ public:
 
     // for controlling when to send posted events
     QAtomicInt serialNumber;
-    int lastSerialNumber;
+    int lastSerialNumber, sendPostedEventsWindowsTimerId;
     QAtomicInt wakeUps;
 
     // timers
@@ -380,7 +381,7 @@ public:
 
 QEventDispatcherWin32Private::QEventDispatcherWin32Private()
     : threadId(GetCurrentThreadId()), interrupt(false), internalHwnd(0), getMessageHook(0),
-      serialNumber(0), lastSerialNumber(0), wakeUps(0)
+      serialNumber(0), lastSerialNumber(0), sendPostedEventsWindowsTimerId(0), wakeUps(0)
 {
     resolveTimerAPI();
 }
@@ -487,17 +488,21 @@ LRESULT QT_WIN_CALLBACK qt_internal_proc(HWND hwnd, UINT message, WPARAM wp, LPA
             }
         }
         return 0;
-    } else if (message == WM_TIMER) {    
-        Q_ASSERT(d != 0);
-        d->sendTimerEvent(wp);
-        return 0;
-    } else if (message == WM_QT_SENDPOSTEDEVENTS) {
+    } else if (message == WM_QT_SENDPOSTEDEVENTS
+               // we also use a Windows timer to send posted events when the message queue is full
+               || (message == WM_TIMER
+                   && d->sendPostedEventsWindowsTimerId != 0
+                   && wp == d->sendPostedEventsWindowsTimerId)) {
         int localSerialNumber = d->serialNumber;
         if (localSerialNumber != d->lastSerialNumber) {
             d->lastSerialNumber = localSerialNumber;
             QCoreApplicationPrivate::sendPostedEvents(0, 0, d->threadData);
         }
         return 0;
+    } else if (message == WM_TIMER) {
+        Q_ASSERT(d != 0);
+        d->sendTimerEvent(wp);
+        return 0;
     }
 
     return DefWindowProc(hwnd, message, wp, lp);
@@ -509,21 +514,36 @@ LRESULT QT_WIN_CALLBACK qt_GetMessageHook(int code, WPARAM wp, LPARAM lp)
         QEventDispatcherWin32 *q = qobject_cast<QEventDispatcherWin32 *>(QAbstractEventDispatcher::instance());
         Q_ASSERT(q != 0);
         if (q) {
+            MSG *msg = (MSG *) lp;
             QEventDispatcherWin32Private *d = q->d_func();
             int localSerialNumber = d->serialNumber;
-            MSG unused;
-            if ((HIWORD(GetQueueStatus(QS_INPUT | QS_RAWINPUT)) == 0
-                 && PeekMessage(&unused, 0, WM_TIMER, WM_TIMER, PM_NOREMOVE) == 0)) {
-                // no more input or timer events in the message queue or more than 10ms has elapsed since
-                // we send posted events, we can allow posted events to be sent now
+            if (HIWORD(GetQueueStatus(QS_TIMER | QS_INPUT | QS_RAWINPUT)) == 0) {
+                // no more input or timer events in the message queue, we can allow posted events to be sent normally now
+                if (d->sendPostedEventsWindowsTimerId != 0) {
+                    // stop the timer to send posted events, since we now allow the WM_QT_SENDPOSTEDEVENTS message
+                    KillTimer(d->internalHwnd, d->sendPostedEventsWindowsTimerId);
+                    d->sendPostedEventsWindowsTimerId = 0;
+                }
                 (void) d->wakeUps.fetchAndStoreRelease(0);
-                MSG *msg = (MSG *) lp;
                 if (localSerialNumber != d->lastSerialNumber
                     // if this message IS the one that triggers sendPostedEvents(), no need to post it again
                     && (msg->hwnd != d->internalHwnd
                         || msg->message != WM_QT_SENDPOSTEDEVENTS)) {
                     PostMessage(d->internalHwnd, WM_QT_SENDPOSTEDEVENTS, 0, 0);
                 }
+            } else if (d->sendPostedEventsWindowsTimerId == 0
+                       && localSerialNumber != d->lastSerialNumber
+                       // if this message IS the one that triggers sendPostedEvents(), no need to post it again
+                       && (msg->hwnd != d->internalHwnd
+                           || msg->message != WM_QT_SENDPOSTEDEVENTS)) {
+                // start a special timer to continue delivering posted events while
+                // there are still input and timer messages in the message queue
+                d->sendPostedEventsWindowsTimerId = SetTimer(d->internalHwnd,
+                                                             SendPostedEventsWindowsTimerId,
+                                                             0, // we specify zero, but Windows uses USER_TIMER_MINIMUM
+                                                             NULL);
+                // we don't check the return value of SetTimer()... if creating the timer failed, there's little
+                // we can do. we just have to accept that posted events will be starved
             }
         }
     }
diff --git a/src/corelib/kernel/qtcore_eval.cpp b/src/corelib/kernel/qtcore_eval.cpp
index 78556c3..da76b74 100644
--- a/src/corelib/kernel/qtcore_eval.cpp
+++ b/src/corelib/kernel/qtcore_eval.cpp
@@ -90,14 +90,14 @@ static const char will_shutdown_now[] =
 
 static int qt_eval_is_supported()
 {
-    const char *const license_key = qt_eval_key_data + 12;
+    const volatile char *const license_key = qt_eval_key_data + 12;
 
     // fast fail
     if (!qt_eval_key_data[0] || !*license_key)
         return -1;
 
     // is this an unsupported evaluation?
-    const char* typecode = license_key;
+    const volatile char *typecode = license_key;
     int field = 2;
     for ( ; field && *typecode; ++typecode)
         if (*typecode == '-')
diff --git a/src/corelib/thread/qthread.cpp b/src/corelib/thread/qthread.cpp
index 71a4896..c9ff8d3 100644
--- a/src/corelib/thread/qthread.cpp
+++ b/src/corelib/thread/qthread.cpp
@@ -488,8 +488,10 @@ int QThread::exec()
     Q_D(QThread);
     QMutexLocker locker(&d->mutex);
     d->data->quitNow = false;
-    if (d->exited)
+    if (d->exited) {
+        d->exited = false;
         return d->returnCode;
+    }
     locker.unlock();
 
     QEventLoop eventLoop;
diff --git a/src/corelib/thread/qthread_unix.cpp b/src/corelib/thread/qthread_unix.cpp
index b674ab8..0892d8e 100644
--- a/src/corelib/thread/qthread_unix.cpp
+++ b/src/corelib/thread/qthread_unix.cpp
@@ -99,6 +99,11 @@
 # define SCHED_IDLE    5
 #endif
 
+#if defined(Q_OS_DARWIN) || !defined(Q_OS_OPENBSD) && defined(_POSIX_THREAD_PRIORITY_SCHEDULING) && (_POSIX_THREAD_PRIORITY_SCHEDULING-0 >= 0)
+#define QT_HAS_THREAD_PRIORITY_SCHEDULING
+#endif
+
+
 QT_BEGIN_NAMESPACE
 
 #ifndef QT_NO_THREAD
@@ -512,10 +517,10 @@ void QThread::usleep(unsigned long usecs)
     thread_sleep(&ti);
 }
 
+#ifdef QT_HAS_THREAD_PRIORITY_SCHEDULING
 // Does some magic and calculate the Unix scheduler priorities
 // sched_policy is IN/OUT: it must be set to a valid policy before calling this function
 // sched_priority is OUT only
-#if defined(Q_OS_DARWIN) || !defined(Q_OS_OPENBSD) && defined(_POSIX_THREAD_PRIORITY_SCHEDULING) && (_POSIX_THREAD_PRIORITY_SCHEDULING-0 >= 0)
 static bool calculateUnixPriority(int priority, int *sched_policy, int *sched_priority)
 {
 #ifdef SCHED_IDLE
@@ -568,7 +573,7 @@ void QThread::start(Priority priority)
 
     d->priority = priority;
 
-#if defined(Q_OS_DARWIN) || !defined(Q_OS_OPENBSD) && !defined(Q_OS_SYMBIAN) && defined(_POSIX_THREAD_PRIORITY_SCHEDULING) && (_POSIX_THREAD_PRIORITY_SCHEDULING-0 >= 0)
+#if defined(QT_HAS_THREAD_PRIORITY_SCHEDULING) && !defined(Q_OS_SYMBIAN)
 // ### Need to implement thread sheduling and priorities for symbian os. Implementation removed for now
     switch (priority) {
     case InheritPriority:
@@ -609,7 +614,7 @@ void QThread::start(Priority priority)
             break;
         }
     }
-#endif // _POSIX_THREAD_PRIORITY_SCHEDULING
+#endif // QT_HAS_THREAD_PRIORITY_SCHEDULING
 
 #ifdef Q_OS_SYMBIAN
     if (d->stackSize == 0)
@@ -772,7 +777,7 @@ void QThread::setPriority(Priority priority)
 
     // copied from start() with a few modifications:
 
-#if defined(Q_OS_DARWIN) || !defined(Q_OS_OPENBSD) && defined(_POSIX_THREAD_PRIORITY_SCHEDULING) && (_POSIX_THREAD_PRIORITY_SCHEDULING-0 >= 0)
+#ifdef QT_HAS_THREAD_PRIORITY_SCHEDULING
     int sched_policy;
     sched_param param;
 
diff --git a/src/corelib/tools/qsimd_p.h b/src/corelib/tools/qsimd_p.h
index 87fa770..2dbed76 100644
--- a/src/corelib/tools/qsimd_p.h
+++ b/src/corelib/tools/qsimd_p.h
@@ -87,9 +87,13 @@ QT_BEGIN_HEADER
 #include <tmmintrin.h>
 #endif
 
-// SSE4.1 and SSE4.2 intrinsics
-#if (defined(QT_HAVE_SSE4_1) || defined(QT_HAVE_SSE4_2)) && (defined(__SSE4_1__) || defined(Q_CC_MSVC))
+// SSE4.1 intrinsics
+#if defined(QT_HAVE_SSE4_1) && (defined(__SSE4_1__) || defined(Q_CC_MSVC))
 #include <smmintrin.h>
+#endif
+
+// SSE4.2 intrinsics
+#if defined(QT_HAVE_SSE4_2) && (defined(__SSE4_2__) || defined(Q_CC_MSVC))
 #include <nmmintrin.h>
 #endif