iOS: Implement socket notifiers.

Create the QCFSocketNotifier class in platform support
which contains shared socket notifier support for
the Cocoa and iOS plugins. Remove the old code from
the Cocoa plugin.

The Cocoa code had one QCocoaEventDispatcher-specific
call: maybeCancelWaitForMoreEvents. Create a forwarding
function that is passed to QCFSocketNotifier.

Change-Id: Ibf9bd4745ba4f577a55f13d0cc00f5ae04447405
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>

1 files changed, 90 insertions, 0 deletions

diff --git a/src/platformsupport/cfsocketnotifier/qcfsocketnotifier_p.h b/src/platformsupport/cfsocketnotifier/qcfsocketnotifier_p.h
new file mode 100644
index 0000000000..cd1eb8e4ca
--- /dev/null
+++ b/src/platformsupport/cfsocketnotifier/qcfsocketnotifier_p.h
@@ -0,0 +1,90 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
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+** conditions see http://qt.digia.com/licensing.  For further information
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+** 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.
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+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
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+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QCFSOCKETNOTIFIER_P_H
+#define QCFSOCKETNOTIFIER_P_H
+
+#include <QtCore/qabstracteventdispatcher.h>
+#include <QtCore/qhash.h>
+
+#include <CoreFoundation/CoreFoundation.h>
+
+QT_BEGIN_NAMESPACE
+
+struct MacSocketInfo {
+    MacSocketInfo() : socket(0), runloop(0), readNotifier(0), writeNotifier(0) {}
+    CFSocketRef socket;
+    CFRunLoopSourceRef runloop;
+    QObject *readNotifier;
+    QObject *writeNotifier;
+};
+typedef QHash<int, MacSocketInfo *> MacSocketHash;
+
+typedef void (*MaybeCancelWaitForMoreEventsFn)(QAbstractEventDispatcher *hostEventDispacher);
+
+// The CoreFoundationSocketNotifier class implements socket notifiers support using
+// CFSocket for event dispatchers running on top of the Core Foundation run loop system.
+// (currently Mac and iOS)
+//
+// The principal functions are registerSocketNotifier() and unregisterSocketNotifier().
+//
+// setHostEventDispatcher() should be called at startup.
+// removeSocketNotifiers() should be called at shutdown.
+//
+class QCFSocketNotifier
+{
+public:
+    QCFSocketNotifier();
+    ~QCFSocketNotifier();
+    void setHostEventDispatcher(QAbstractEventDispatcher *hostEventDispacher);
+    void setMaybeCancelWaitForMoreEventsCallback(MaybeCancelWaitForMoreEventsFn callBack);
+    void registerSocketNotifier(QSocketNotifier *notifier);
+    void unregisterSocketNotifier(QSocketNotifier *notifier);
+    void removeSocketNotifiers();
+
+    MacSocketHash macSockets;
+    QAbstractEventDispatcher *eventDispatcher;
+    MaybeCancelWaitForMoreEventsFn maybeCancelWaitForMoreEvents;
+};
+
+QT_END_NAMESPACE
+
+#endif