Merge branch 'master' of scm.dev.nokia.troll.no:qt/oslo-staging-1 into master-integration

* 'master' of scm.dev.nokia.troll.no:qt/oslo-staging-1:
  Cannot enter text through character viewer on Mac (Cocoa)
  QNAM HTTP: Remove eatWhitespace() hack
  QNAM: Fix namespaced compilation
  Revert the addition of the test of QtTest's random feature.
  QAbstractSocket: Remove warning
  QNAM Zerocopy: Benchmark
  tst_qbytearray: Auto test for reserve()
  tst_qiodevice: Add peek()ing auto test
  tst_qnetworkreply: Zerocopy auto test
  tst_qhttpnetworkconnection: Pipelining auto test
  QNAM Zerocopy: QNAM implementation part
  QNAM Zerocopy: HTTP implementation part
  QAbstractSocket: Enable Unbuffered OpenMode for TCP
  QNativeSocketEngine: Fix wrong debug output
  Added QObject::senderSignalIndex()
  Cleanup the connection list logic in QObject::sender
  Fixed linking against libQtTest on Mac.
  Added -random option to tests, making the test cases within a test execute in arbitrary order. Very useful for avoiding test cases being dependent on the running order.

2 files changed, 49 insertions, 8 deletions

diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp
index 143dbff..ceffa66 100644
--- a/src/corelib/kernel/qobject.cpp
+++ b/src/corelib/kernel/qobject.cpp
@@ -2287,7 +2287,7 @@ static void err_info_about_objects(const char * func,
     a thread different from this object's thread. Do not use this
     function in this type of scenario.
 
-    \sa QSignalMapper
+    \sa senderSignalIndex(), QSignalMapper
 */
 
 QObject *QObject::sender() const
@@ -2298,13 +2298,53 @@ QObject *QObject::sender() const
     if (!d->currentSender)
         return 0;
 
-    // Return 0 if d->currentSender isn't in d->senders
-    bool found = false;
-    for (QObjectPrivate::Connection *c = d->senders; c && !found; c = c->next)
-        found = (c->sender == d->currentSender->sender);
-    if (!found)
-        return 0;
-    return d->currentSender->sender;
+    for (QObjectPrivate::Connection *c = d->senders; c; c = c->next) {
+        if (c->sender == d->currentSender->sender)
+            return d->currentSender->sender;
+    }
+
+    return 0;
+}
+
+/*!
+    \since 4.8
+
+    Returns the meta-method index of the signal that called the currently
+    executing slot, which is a member of the class returned by sender().
+    If called outside of a slot activated by a signal, -1 is returned.
+
+    For signals with default parameters, this function will always return
+    the index with all parameters, regardless of which was used with
+    connect(). For example, the signal \c {destroyed(QObject *obj = 0)}
+    will have two different indexes (with and without the parameter), but
+    this function will always return the index with a parameter. This does
+    not apply when overloading signals with different parameters.
+
+    \warning This function violates the object-oriented principle of
+    modularity. However, getting access to the signal index might be useful
+    when many signals are connected to a single slot.
+
+    \warning The return value of this function is not valid when the slot
+    is called via a Qt::DirectConnection from a thread different from this
+    object's thread. Do not use this function in this type of scenario.
+
+    \sa sender(), QMetaObject::indexOfSignal(), QMetaObject::method()
+*/
+
+int QObject::senderSignalIndex() const
+{
+    Q_D(const QObject);
+
+    QMutexLocker locker(signalSlotLock(this));
+    if (!d->currentSender)
+        return -1;
+
+    for (QObjectPrivate::Connection *c = d->senders; c; c = c->next) {
+        if (c->sender == d->currentSender->sender)
+            return d->currentSender->signal;
+    }
+
+    return -1;
 }
 
 /*!
diff --git a/src/corelib/kernel/qobject.h b/src/corelib/kernel/qobject.h
index 21bad16..b5db936 100644
--- a/src/corelib/kernel/qobject.h
+++ b/src/corelib/kernel/qobject.h
@@ -280,6 +280,7 @@ public Q_SLOTS:
 
 protected:
     QObject *sender() const;
+    int senderSignalIndex() const;
     int receivers(const char* signal) const;
 
     virtual void timerEvent(QTimerEvent *);