Merge remote branch 'origin/4.6' into qt-4.7-from-4.6

Conflicts:
	bin/syncqt
	src/3rdparty/webkit/VERSION
	src/3rdparty/webkit/WebCore/ChangeLog
	src/3rdparty/webkit/WebCore/bridge/qt/qt_instance.cpp
	src/3rdparty/webkit/WebCore/bridge/qt/qt_runtime.h
	src/3rdparty/webkit/WebCore/page/FrameView.cpp
	src/3rdparty/webkit/WebCore/page/FrameView.h
	src/3rdparty/webkit/WebCore/platform/ScrollView.cpp
	src/3rdparty/webkit/WebCore/platform/ScrollView.h
	src/corelib/plugin/quuid.cpp
	src/gui/dialogs/qfontdialog.cpp
	src/multimedia/audio/qaudiodevicefactory.cpp
	src/opengl/qgl.cpp
	src/openvg/qpaintengine_vg.cpp
	tests/auto/qxmlquery/tst_qxmlquery.cpp

5 files changed, 45 insertions, 72 deletions

diff --git a/src/corelib/concurrent/qtconcurrentmap.cpp b/src/corelib/concurrent/qtconcurrentmap.cpp
index 39a13fb..e74d69c 100644
--- a/src/corelib/concurrent/qtconcurrentmap.cpp
+++ b/src/corelib/concurrent/qtconcurrentmap.cpp
@@ -70,7 +70,7 @@
     \value UnorderedReduce Reduction is done in an arbitrary order.
     \value OrderedReduce Reduction is done in the order of the
     original sequence.
-    \value SequentialReduce Reduction is done sequentally: only one
+    \value SequentialReduce Reduction is done sequentially: only one
     thread will enter the reduce function at a time. (Parallel reduction
     might be supported in a future version of Qt Concurrent.)
 */
diff --git a/src/corelib/global/qglobal.cpp b/src/corelib/global/qglobal.cpp
index 75a51ec..c956b85 100644
--- a/src/corelib/global/qglobal.cpp
+++ b/src/corelib/global/qglobal.cpp
@@ -2606,55 +2606,6 @@ void qsrand(uint seed)
 #endif
 }
 
-/*! \internal
-    \relates <QtGlobal>
-    \since 4.6
-
-    Seed the PRNG, but only if it has not already been seeded.
-
-    The default seed is a combination of current time, a stack address and a
-    serial counter (since thread stack addresses are re-used).
-*/
-void qsrand()
-{
-#if (defined(Q_OS_UNIX) || defined(Q_OS_WIN)) && !defined(QT_NO_THREAD)
-    SeedStorage *seedStorage = randTLS();
-    if (seedStorage) {
-        SeedStorageType *pseed = seedStorage->localData();
-        if (pseed) {
-            // already seeded
-            return;
-        }
-        seedStorage->setLocalData(pseed = new SeedStorageType);
-        // start beyond 1 to avoid the sequence reset
-        static QBasicAtomicInt serial = Q_BASIC_ATOMIC_INITIALIZER(2);
-        *pseed = QDateTime::currentDateTime().toTime_t()
-                 + quintptr(&pseed)
-                 + serial.fetchAndAddRelaxed(1);
-#if defined(Q_OS_WIN) || defined(Q_OS_SYMBIAN)
-        // for Windows and Symbian the srand function must still be called.
-        srand(*pseed);
-#endif
-    }
-
-//QT_NO_THREAD implementations
-#else
-    static unsigned int seed = 0;
-
-    if (seed)
-        return;
-
-#if defined(Q_OS_SYMBIAN)
-    seed = Math::Random();
-#elif defined(Q_OS_WIN)
-    seed = GetTickCount();
-#else
-    seed = quintptr(&seed) + QDateTime::currentDateTime().toTime_t();
-#endif
-    srand(seed);
-#endif // defined(Q_OS_UNIX) || defined(Q_OS_WIN)) && !defined(QT_NO_THREAD)
-}
-
 /*!
     \relates <QtGlobal>
     \since 4.2
diff --git a/src/corelib/io/qfsfileengine_unix.cpp b/src/corelib/io/qfsfileengine_unix.cpp
index 9464a97..d83f7ee 100644
--- a/src/corelib/io/qfsfileengine_unix.cpp
+++ b/src/corelib/io/qfsfileengine_unix.cpp
@@ -1023,7 +1023,7 @@ QString QFSFileEngine::fileName(FileName file) const
 #if !defined(QWS) && defined(Q_OS_MAC)
         QCFType<CFURLRef> url = CFURLCreateWithFileSystemPath(0, QCFString(d->filePath),
                                                               kCFURLPOSIXPathStyle, true);
-        if (CFDictionaryRef dict = CFBundleCopyInfoDictionaryForURL(url)) {
+        if (QCFType<CFDictionaryRef> dict = CFBundleCopyInfoDictionaryForURL(url)) {
             if (CFTypeRef name = (CFTypeRef)CFDictionaryGetValue(dict, kCFBundleNameKey)) {
                 if (CFGetTypeID(name) == CFStringGetTypeID())
                     return QCFString::toQString((CFStringRef)name);
@@ -1141,7 +1141,7 @@ QString QFSFileEngine::fileName(FileName file) const
                 if (FSResolveAliasFile(&fref, true, &isFolder, &isAlias) == noErr && isAlias) {
                     AliasHandle alias;
                     if (FSNewAlias(0, &fref, &alias) == noErr && alias) {
-                        CFStringRef cfstr;
+                        QCFString cfstr;
                         if (FSCopyAliasInfo(alias, 0, 0, &cfstr, 0, 0) == noErr)
                             return QCFString::toQString(cfstr);
                     }
diff --git a/src/corelib/plugin/quuid.cpp b/src/corelib/plugin/quuid.cpp
index 9332bbc..6c1b6e7 100644
--- a/src/corelib/plugin/quuid.cpp
+++ b/src/corelib/plugin/quuid.cpp
@@ -578,11 +578,10 @@ QUuid QUuid::createUuid()
 QT_BEGIN_INCLUDE_NAMESPACE
 #include "qdatetime.h"
 #include "qfile.h"
-#include "stdlib.h" // For srand/rand
+#include "qthreadstorage.h"
+#include <stdlib.h> // for RAND_MAX
 QT_END_INCLUDE_NAMESPACE
 
-extern void qsrand(); // in qglobal.cpp
-
 QUuid QUuid::createUuid()
 {
     QUuid result;
@@ -600,12 +599,32 @@ QUuid QUuid::createUuid()
         static const int intbits = sizeof(int)*8;
         static int randbits = 0;
         if (!randbits) {
+        int r = 0;
             int max = RAND_MAX;
-            do { ++randbits; } while ((max=max>>1));
+            do { ++r; } while ((max=max>>1));
+            randbits = r;
         }
 
-        // reseed, but only if not already seeded
-        qsrand();
+    // Seed the PRNG once per thread with a combination of current time, a
+    // stack address and a serial counter (since thread stack addresses are
+    // re-used).
+#ifndef QT_BOOTSTRAPPED
+    static QThreadStorage<int *> uuidseed;
+    if (!uuidseed.hasLocalData())
+    {
+        int *pseed = new int;
+        static QBasicAtomicInt serial = Q_BASIC_ATOMIC_INITIALIZER(2);
+        qsrand(*pseed = QDateTime::currentDateTime().toTime_t()
+                        + quintptr(&pseed)
+                        + serial.fetchAndAddRelaxed(1));
+        uuidseed.setLocalData(pseed);
+    }
+#else
+    static bool seeded = false;
+    if (!seeded)
+        qsrand(QDateTime::currentDateTime().toTime_t()
+               + quintptr(&seeded));
+#endif
 
         int chunks = 16 / sizeof(uint);
         while (chunks--) {
diff --git a/src/corelib/tools/qsharedpointer_impl.h b/src/corelib/tools/qsharedpointer_impl.h
index 550ff58..4cce339 100644
--- a/src/corelib/tools/qsharedpointer_impl.h
+++ b/src/corelib/tools/qsharedpointer_impl.h
@@ -324,12 +324,17 @@ namespace QtSharedPointer {
         typedef ExternalRefCountData Data;
 
         inline void ref() const { d->weakref.ref(); d->strongref.ref(); }
-        inline bool deref()
+        inline void deref()
+        { deref(d, this->value); }
+        static inline void deref(Data *d, T *value)
         {
+            if (!d) return;
             if (!d->strongref.deref()) {
-                internalDestroy();
+                if (!d->destroy())
+                    delete value;
             }
-            return d->weakref.deref();
+            if (!d->weakref.deref())
+                delete d;
         }
 
         inline void internalConstruct(T *ptr)
@@ -378,7 +383,7 @@ namespace QtSharedPointer {
         template <class X>
         inline ExternalRefCount(const ExternalRefCount<X> &other) : Basic<T>(other.value), d(other.d)
         { if (d) ref(); }
-        inline ~ExternalRefCount() { if (d && !deref()) delete d; }
+        inline ~ExternalRefCount() { deref(); }
 
         template <class X>
         inline void internalCopy(const ExternalRefCount<X> &other)
@@ -386,12 +391,6 @@ namespace QtSharedPointer {
             internalSet(other.d, other.data());
         }
 
-        inline void internalDestroy()
-        {
-            if (!d->destroy())
-                delete this->value;
-        }
-
         inline void internalSwap(ExternalRefCount &other)
         {
             qSwap(d, other.d);
@@ -424,10 +423,14 @@ namespace QtSharedPointer {
                 else
                     o = 0;
             }
-            if (d && !deref())
-                delete d;
-            d = o;
-            this->value = d && d->strongref ? actual : 0;
+
+            qSwap(d, o);
+            qSwap(this->value, actual);
+            if (!d || d->strongref == 0)
+                this->value = 0;
+
+            // dereference saved data
+            deref(o, actual);
         }
 
         Data *d;