Merge remote branch 'origin/4.7' into 4.7

Conflicts:
	src/gui/text/qstatictext.cpp

12 files changed, 136 insertions, 232 deletions

diff --git a/src/corelib/concurrent/qthreadpool.cpp b/src/corelib/concurrent/qthreadpool.cpp
index 9e4189e..a4057f1 100644
--- a/src/corelib/concurrent/qthreadpool.cpp
+++ b/src/corelib/concurrent/qthreadpool.cpp
@@ -41,6 +41,7 @@
 
 #include "qthreadpool.h"
 #include "qthreadpool_p.h"
+#include "qelapsedtimer.h"
 
 #ifndef QT_NO_THREAD
 
@@ -288,11 +289,18 @@ void QThreadPoolPrivate::reset()
     isExiting = false;
 }
 
-void QThreadPoolPrivate::waitForDone()
+void QThreadPoolPrivate::waitForDone(int msecs)
 {
     QMutexLocker locker(&mutex);
-    while (!(queue.isEmpty() && activeThreads == 0))
-        noActiveThreads.wait(locker.mutex());
+    if (msecs < 0){
+        while (!(queue.isEmpty() && activeThreads == 0))
+            noActiveThreads.wait(locker.mutex());
+    } else {
+        QElapsedTimer timer;
+        timer.start();
+        while (!(queue.isEmpty() && activeThreads == 0) && (timer.elapsed() < msecs))
+            noActiveThreads.wait(locker.mutex(), msecs - timer.elapsed());
+    }
 }
 
 /*! \internal
@@ -610,10 +618,10 @@ void QThreadPool::releaseThread()
 /*!
     Waits for each thread to exit and removes all threads from the thread pool.
 */
-void QThreadPool::waitForDone()
+void QThreadPool::waitForDone(int msecs)
 {
     Q_D(QThreadPool);
-    d->waitForDone();
+    d->waitForDone(msecs);
     d->reset();
 }
 
diff --git a/src/corelib/concurrent/qthreadpool.h b/src/corelib/concurrent/qthreadpool.h
index cc1e059..9895c41 100644
--- a/src/corelib/concurrent/qthreadpool.h
+++ b/src/corelib/concurrent/qthreadpool.h
@@ -84,7 +84,7 @@ public:
     void reserveThread();
     void releaseThread();
 
-    void waitForDone();
+    void waitForDone(int msecs = -1);
 };
 
 QT_END_NAMESPACE
diff --git a/src/corelib/concurrent/qthreadpool_p.h b/src/corelib/concurrent/qthreadpool_p.h
index 8a2cf98..1a0e4ab 100644
--- a/src/corelib/concurrent/qthreadpool_p.h
+++ b/src/corelib/concurrent/qthreadpool_p.h
@@ -82,7 +82,7 @@ public:
 
     void startThread(QRunnable *runnable = 0);
     void reset();
-    void waitForDone();
+    void waitForDone(int msecs = -1);
     bool startFrontRunnable();
     void stealRunnable(QRunnable *);
 
diff --git a/src/corelib/io/qwindowspipewriter.cpp b/src/corelib/io/qwindowspipewriter.cpp
index eb42c20..417439f 100644
--- a/src/corelib/io/qwindowspipewriter.cpp
+++ b/src/corelib/io/qwindowspipewriter.cpp
@@ -40,6 +40,7 @@
 ****************************************************************************/
 
 #include "qwindowspipewriter_p.h"
+#include <string.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -100,7 +101,8 @@ qint64 QWindowsPipeWriter::write(const char *ptr, qint64 maxlen)
 
 void QWindowsPipeWriter::run()
 {
-    OVERLAPPED overl = {0, 0, {{ 0 }}, 0};
+    OVERLAPPED overl;
+    memset(&overl, 0, sizeof overl);
     overl.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
     forever {
         lock.lock();
diff --git a/src/corelib/kernel/kernel.pri b/src/corelib/kernel/kernel.pri
index d0dad49..1851e04 100644
--- a/src/corelib/kernel/kernel.pri
+++ b/src/corelib/kernel/kernel.pri
@@ -33,7 +33,6 @@ HEADERS += \
         kernel/qsystemsemaphore.h \
         kernel/qsystemsemaphore_p.h \
         kernel/qfunctions_p.h \
-        kernel/qguard_p.h \
         kernel/qmath.h
 
 SOURCES += \
diff --git a/src/corelib/kernel/qguard_p.h b/src/corelib/kernel/qguard_p.h
deleted file mode 100644
index 0f7fd94..0000000
--- a/src/corelib/kernel/qguard_p.h
+++ /dev/null
@@ -1,157 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the QtCore module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** No Commercial Usage
-** This file contains pre-release code and may not be distributed.
-** You may use this file in accordance with the terms and conditions
-** contained in the Technology Preview License Agreement accompanying
-** this package.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights.  These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** If you have questions regarding the use of this file, please contact
-** Nokia at qt-info@nokia.com.
-**
-**
-**
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QGUARD_P_H
-#define QGUARD_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists for the convenience
-// of qapplication_*.cpp, qwidget*.cpp and qfiledialog.cpp.  This header
-// file may change from version to version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include "QtCore/qglobal.h"
-
-QT_BEGIN_NAMESPACE
-
-class QObject;
-template<class T>
-class QGuard
-{
-    QObject *o;
-    QGuard<QObject> *next;
-    QGuard<QObject> **prev;
-    friend void q_guard_addGuard(QGuard<QObject> *);
-    friend void q_guard_removeGuard(QGuard<QObject> *);
-    friend class QObjectPrivate;
-public:
-    inline QGuard();
-    inline QGuard(T *);
-    inline QGuard(const QGuard<T> &);
-    inline virtual ~QGuard();
-
-    inline QGuard<T> &operator=(const QGuard<T> &o);
-    inline QGuard<T> &operator=(T *);
-    
-    inline bool isNull() const
-        { return !o; }
-
-    inline T* operator->() const
-        { return static_cast<T*>(const_cast<QObject*>(o)); }
-    inline T& operator*() const
-        { return *static_cast<T*>(const_cast<QObject*>(o)); }
-    inline operator T*() const
-        { return static_cast<T*>(const_cast<QObject*>(o)); }
-    inline T* data() const
-        { return static_cast<T*>(const_cast<QObject*>(o)); }
-
-protected:
-    virtual void objectDestroyed(T *) {}
-};
-
-QT_END_NAMESPACE
-
-#include "private/qobject_p.h"
-
-QT_BEGIN_NAMESPACE
-
-inline void q_guard_addGuard(QGuard<QObject> *);
-inline void q_guard_removeGuard(QGuard<QObject> *);
-
-template<class T>
-QGuard<T>::QGuard()
-: o(0), next(0), prev(0)
-{
-}
-
-template<class T>
-QGuard<T>::QGuard(T *g)
-: o(g), next(0), prev(0)
-{
-    if (o) q_guard_addGuard(reinterpret_cast<QGuard<QObject> *>(this));
-}
-
-template<class T>
-QGuard<T>::QGuard(const QGuard<T> &g)
-: o(g.o), next(0), prev(0)
-{
-    if (o) q_guard_addGuard(reinterpret_cast<QGuard<QObject> *>(this));
-}
-
-template<class T>
-QGuard<T>::~QGuard()
-{
-    if (prev) q_guard_removeGuard(reinterpret_cast<QGuard<QObject> *>(this));
-    o = 0;
-}
-
-template<class T>
-QGuard<T> &QGuard<T>::operator=(const QGuard<T> &g)
-{
-    if (g.o != o) {
-        if (prev) 
-            q_guard_removeGuard(reinterpret_cast<QGuard<QObject> *>(this));
-        o = g.o;
-        if (o) q_guard_addGuard(reinterpret_cast<QGuard<QObject> *>(this));
-    }
-    return *this;
-}
-
-template<class T>
-inline QGuard<T> &QGuard<T>::operator=(T *g)
-{
-    if (g != o) {
-        if (prev) 
-            q_guard_removeGuard(reinterpret_cast<QGuard<QObject> *>(this));
-        o = g;
-        if (o) q_guard_addGuard(reinterpret_cast<QGuard<QObject> *>(this));
-    }
-    return *this;
-}
-
-QT_END_NAMESPACE
-
-#endif // QGUARD_P_H
diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp
index 53c5b3b..330de20 100644
--- a/src/corelib/kernel/qobject.cpp
+++ b/src/corelib/kernel/qobject.cpp
@@ -496,15 +496,6 @@ void QMetaObject::changeGuard(QObject **ptr, QObject *o)
 void QObjectPrivate::clearGuards(QObject *object)
 {
     QObjectPrivate *priv = QObjectPrivate::get(object);
-    QGuard<QObject> *guard = priv->extraData ? priv->extraData->objectGuards : 0;
-    while (guard) {
-        QGuard<QObject> *g = guard;
-        guard = guard->next;
-        g->o = 0;
-        g->prev = 0;
-        g->next = 0;
-        g->objectDestroyed(object);
-    }
 
     if (!priv->hasGuards)
         return;
diff --git a/src/corelib/kernel/qobject_p.h b/src/corelib/kernel/qobject_p.h
index 20e3da1..3b59abb 100644
--- a/src/corelib/kernel/qobject_p.h
+++ b/src/corelib/kernel/qobject_p.h
@@ -60,7 +60,6 @@
 #include "QtCore/qvector.h"
 #include "QtCore/qreadwritelock.h"
 #include "QtCore/qvariant.h"
-#include "private/qguard_p.h"
 
 QT_BEGIN_NAMESPACE
 
@@ -100,13 +99,12 @@ class Q_CORE_EXPORT QObjectPrivate : public QObjectData
 public:
     struct ExtraData
     {
-        ExtraData() : objectGuards(0) {}
+        ExtraData() {}
 #ifndef QT_NO_USERDATA
         QVector<QObjectUserData *> userData;
 #endif
         QList<QByteArray> propertyNames;
         QList<QVariant> propertyValues;
-        QGuard<QObject> *objectGuards; //linked list handle of QGuards
     };
 
     struct Connection
@@ -224,33 +222,6 @@ inline bool QObjectPrivate::isSignalConnected(uint signal_index) const
 }
 
 
-inline void q_guard_addGuard(QGuard<QObject> *g)
-{
-    QObjectPrivate *p = QObjectPrivate::get(g->o);
-    if (p->wasDeleted) {
-        qWarning("QGuard: cannot add guard to deleted object");
-        g->o = 0;
-        return;
-    }
-
-    if (!p->extraData)
-        p->extraData = new QObjectPrivate::ExtraData;
-
-    g->next = p->extraData->objectGuards;
-    p->extraData->objectGuards = g;
-    g->prev = &p->extraData->objectGuards;
-    if (g->next)
-        g->next->prev = &g->next;
-}
-
-inline void q_guard_removeGuard(QGuard<QObject> *g)
-{
-    if (g->next) g->next->prev = g->prev;
-    *g->prev = g->next;
-    g->next = 0;
-    g->prev = 0;
-}
-
 Q_DECLARE_TYPEINFO(QObjectPrivate::Connection, Q_MOVABLE_TYPE);
 Q_DECLARE_TYPEINFO(QObjectPrivate::Sender, Q_MOVABLE_TYPE);
 
diff --git a/src/corelib/tools/qdatetime.cpp b/src/corelib/tools/qdatetime.cpp
index 3e34d62..459d76a 100644
--- a/src/corelib/tools/qdatetime.cpp
+++ b/src/corelib/tools/qdatetime.cpp
@@ -2318,17 +2318,35 @@ void QDateTime::setTimeSpec(Qt::TimeSpec spec)
     }
 }
 
-static uint toTime_tHelper(const QDate &utcDate, const QTime &utcTime)
+qint64 toMSecsSinceEpoch_helper(qint64 jd, int msecs)
 {
-    int days = QDate(1970, 1, 1).daysTo(utcDate);
-    int secs = QTime().secsTo(utcTime);
-    if (days < 0 || (days == 0 && secs < 0))
-        return uint(-1);
+    int days = jd - julianDayFromGregorianDate(1970, 1, 1);
+    qint64 retval = (qlonglong(days) * MSECS_PER_DAY) + msecs;
+    return retval;
+}
 
-    qlonglong retval = (qlonglong(days) * SECS_PER_DAY) + secs;
-    if (retval >= Q_INT64_C(0xFFFFFFFF))
-        return uint(-1);
-    return uint(retval);
+/*!
+    \since 4.7
+
+    Returns the datetime as the number of milliseconds that have passed
+    since 1970-01-01T00:00:00.000, Coordinated Universal Time (Qt::UTC).
+
+    On systems that do not support time zones, this function will
+    behave as if local time were Qt::UTC.
+
+    The behavior for this function is undefined if the datetime stored in
+    this object is not valid. However, for all valid dates, this function
+    returns a unique value.
+
+    \sa toTime_t(), setMSecsSinceEpoch()
+*/
+qint64 QDateTime::toMSecsSinceEpoch() const
+{
+    QDate utcDate;
+    QTime utcTime;
+    d->getUTC(utcDate, utcTime);
+
+    return toMSecsSinceEpoch_helper(utcDate.jd, utcTime.ds());
 }
 
 /*!
@@ -2338,16 +2356,63 @@ static uint toTime_tHelper(const QDate &utcDate, const QTime &utcTime)
     On systems that do not support time zones, this function will
     behave as if local time were Qt::UTC.
 
-    \sa setTime_t()
+    \note This function returns a 32-bit unsigned integer, so it does not
+    support dates before 1970, but it does support dates after
+    2038-01-19T03:14:06, which may not be valid time_t values. Be careful
+    when passing those time_t values to system functions, which could
+    interpret them as negative dates.
+
+    If the date is outside the range 1970-01-01T00:00:00 to
+    2106-02-07T06:28:14, this function returns -1 cast to an unsigned integer
+    (i.e., 0xFFFFFFFF).
+
+    To get an extended range, use toMSecsSinceEpoch().
+
+    \sa toMSecsSinceEpoch(), setTime_t()
 */
 
 uint QDateTime::toTime_t() const
 {
-    QDate utcDate;
-    QTime utcTime;
-    d->getUTC(utcDate, utcTime);
+    qint64 retval = toMSecsSinceEpoch() / 1000;
+    if (quint64(retval) >= Q_UINT64_C(0xFFFFFFFF))
+        return uint(-1);
+    return uint(retval);
+}
+
+/*!
+    \since 4.7
 
-    return toTime_tHelper(utcDate, utcTime);
+    Sets the date and time given the number of \a mulliseconds that have
+    passed since 1970-01-01T00:00:00.000, Coordinated Universal Time
+    (Qt::UTC). On systems that do not support time zones this function
+    will behave as if local time were Qt::UTC.
+
+    Note that there are possible values for \a msecs that lie outside the
+    valid range of QDateTime, both negative and positive. The behavior of
+    this function is undefined for those values.
+
+    \sa toMSecsSinceEpoch(), setTime_t()
+*/
+void QDateTime::setMSecsSinceEpoch(qint64 msecs)
+{
+    detach();
+
+    QDateTimePrivate::Spec oldSpec = d->spec;
+
+    int ddays = msecs / MSECS_PER_DAY;
+    msecs %= MSECS_PER_DAY;
+    if (msecs < 0) {
+        // negative
+        --ddays;
+        msecs += MSECS_PER_DAY;
+    }
+
+    d->date = QDate(1970, 1, 1).addDays(ddays);
+    d->time = QTime().addMSecs(msecs);
+    d->spec = QDateTimePrivate::UTC;
+
+    if (oldSpec != QDateTimePrivate::UTC)
+        d->spec = d->getLocal(d->date, d->time);
 }
 
 /*!
@@ -2816,7 +2881,7 @@ bool QDateTime::operator<(const QDateTime &other) const
 */
 
 /*!
-    \fn qint64 QDateTime::currentMsecsSinceEpoch()
+    \fn qint64 QDateTime::currentMSecsSinceEpoch()
     \since 4.7
 
     Returns the number of milliseconds since 1970-01-01T00:00:00 Universal
@@ -2879,7 +2944,7 @@ QDateTime QDateTime::currentDateTimeUtc()
     return QDateTime(d, t, Qt::UTC);
 }
 
-qint64 QDateTime::currentMsecsSinceEpoch()
+qint64 QDateTime::currentMSecsSinceEpoch()
 {
     QDate d;
     QTime t;
@@ -2943,7 +3008,7 @@ QDateTime QDateTime::currentDateTimeUtc()
     return QDateTime(d, ct, Qt::UTC);
 }
 
-qint64 QDateTime::currentMsecsSinceEpoch()
+qint64 QDateTime::currentMSecsSinceEpoch()
 {
     QDate d;
     QTime ct;
@@ -3060,7 +3125,7 @@ QDateTime QDateTime::currentDateTimeUtc()
     return dt;
 }
 
-qint64 QDateTime::currentMsecsSinceEpoch()
+qint64 QDateTime::currentMSecsSinceEpoch()
 {
     // posix compliant system
     // we have milliseconds
@@ -3091,6 +3156,27 @@ QDateTime QDateTime::fromTime_t(uint seconds)
 }
 
 /*!
+  \since 4.7
+
+  Returns a datetime whose date and time are the number of milliseconds \a msec
+  that have passed since 1970-01-01T00:00:00.000, Coordinated Universal
+  Time (Qt::UTC). On systems that do not support time zones, the time
+  will be set as if local time were Qt::UTC.
+
+  Note that there are possible values for \a msecs that lie outside the valid
+  range of QDateTime, both negative and positive. The behavior of this
+  function is undefined for those values.
+
+  \sa toTime_t(), setTime_t()
+*/
+QDateTime QDateTime::fromMSecsSinceEpoch(qint64 msecs)
+{
+    QDateTime d;
+    d.setMSecsSinceEpoch(msecs);
+    return d;
+}
+
+/*!
  \since 4.4
  \internal
 
@@ -3844,7 +3930,8 @@ static QDateTimePrivate::Spec utcToLocal(QDate &date, QTime &time)
 {
     QDate fakeDate = adjustDate(date);
 
-    time_t secsSince1Jan1970UTC = toTime_tHelper(fakeDate, time);
+    // won't overflow because of fakeDate
+    time_t secsSince1Jan1970UTC = toMSecsSinceEpoch_helper(fakeDate.toJulianDay(), QTime().msecsTo(time)) / 1000;
     tm *brokenDown = 0;
 
 #if defined(Q_OS_WINCE)
@@ -3929,7 +4016,7 @@ static void localToUtc(QDate &date, QTime &time, int isdst)
     localTM.tm_year = fakeDate.year() - 1900;
     localTM.tm_isdst = (int)isdst;
 #if defined(Q_OS_WINCE) || defined(Q_OS_SYMBIAN)
-    time_t secsSince1Jan1970UTC = toTime_tHelper(fakeDate, time);
+    time_t secsSince1Jan1970UTC = toMSecsSinceEpoch_helper(fakeDate.toJulianDay(), QTime().msecsTo(time));
 #else
 #if defined(Q_OS_WIN)
     _tzset();
diff --git a/src/corelib/tools/qdatetime.h b/src/corelib/tools/qdatetime.h
index ef5968e..f445f1c 100644
--- a/src/corelib/tools/qdatetime.h
+++ b/src/corelib/tools/qdatetime.h
@@ -230,10 +230,12 @@ public:
     QDate date() const;
     QTime time() const;
     Qt::TimeSpec timeSpec() const;
+    qint64 toMSecsSinceEpoch() const;
     uint toTime_t() const;
     void setDate(const QDate &date);
     void setTime(const QTime &time);
     void setTimeSpec(Qt::TimeSpec spec);
+    void setMSecsSinceEpoch(qint64 msecs);
     void setTime_t(uint secsSince1Jan1970UTC);
 #ifndef QT_NO_DATESTRING
     QString toString(Qt::DateFormat f = Qt::TextDate) const;
@@ -267,7 +269,8 @@ public:
     static QDateTime fromString(const QString &s, const QString &format);
 #endif
     static QDateTime fromTime_t(uint secsSince1Jan1970UTC);
-    static qint64 currentMsecsSinceEpoch();
+    static QDateTime fromMSecsSinceEpoch(qint64 msecs);
+    static qint64 currentMSecsSinceEpoch();
 
 #ifdef QT3_SUPPORT
     inline QT3_SUPPORT void setTime_t(uint secsSince1Jan1970UTC, Qt::TimeSpec spec) {
diff --git a/src/corelib/tools/qelapsedtimer_generic.cpp b/src/corelib/tools/qelapsedtimer_generic.cpp
index 9b589c1..85986e6 100644
--- a/src/corelib/tools/qelapsedtimer_generic.cpp
+++ b/src/corelib/tools/qelapsedtimer_generic.cpp
@@ -98,7 +98,7 @@ void QElapsedTimer::start()
 qint64 QElapsedTimer::restart()
 {
     qint64 old = t1;
-    t1 = QDateTime::currentMsecsSinceEpoch();
+    t1 = QDateTime::currentMSecsSinceEpoch();
     t2 = 0;
     return t1 - old;
 }
@@ -112,7 +112,7 @@ qint64 QElapsedTimer::restart()
 */
 qint64 QElapsedTimer::elapsed() const
 {
-    return QDateTime::currentMsecsSinceEpoch() - t1;
+    return QDateTime::currentMSecsSinceEpoch() - t1;
 }
 
 /*!
diff --git a/src/corelib/tools/qelapsedtimer_unix.cpp b/src/corelib/tools/qelapsedtimer_unix.cpp
index 85d7fa8..2c4ea58 100644
--- a/src/corelib/tools/qelapsedtimer_unix.cpp
+++ b/src/corelib/tools/qelapsedtimer_unix.cpp
@@ -74,7 +74,7 @@ bool QElapsedTimer::isMonotonic()
     static int returnValue = 0;
 
     if (returnValue == 0) {
-#  if (_POSIX_MONOTONIC_CLOCK-0 < 0)
+#  if (_POSIX_MONOTONIC_CLOCK-0 < 0) || !defined(_SC_MONOTONIC_CLOCK)
         returnValue = -1;
 #  elif (_POSIX_MONOTONIC_CLOCK == 0)
         // detect if the system support monotonic timers
@@ -97,19 +97,19 @@ static inline QPair<long, long> do_gettime()
 #if (_POSIX_MONOTONIC_CLOCK-0 > 0)
     timespec ts;
     clock_gettime(CLOCK_MONOTONIC, &ts);
-    return qMakePair(ts.tv_sec, ts.tv_nsec);
+    return qMakePair<long,long>(ts.tv_sec, ts.tv_nsec);
 #else
 #  if !defined(QT_NO_CLOCK_MONOTONIC) && !defined(QT_BOOTSTRAPPED)
     if (QElapsedTimer::isMonotonic()) {
         timespec ts;
         clock_gettime(CLOCK_MONOTONIC, &ts);
-        return qMakePair(ts.tv_sec, ts.tv_nsec);
+        return qMakePair<long,long>(ts.tv_sec, ts.tv_nsec);
     }
 #  endif
     // use gettimeofday
     timeval tv;
     ::gettimeofday(&tv, 0);
-    return qMakePair(tv.tv_sec, tv.tv_usec);
+    return qMakePair<long,long>(tv.tv_sec, tv.tv_usec);
 #endif
 }