WinRT: Introduced qfunctions_winrt

Using the same approach as, wince qfunctions_winrt
is introduced to replace functions not available
on Windows Runtime by their successor functions/
equivalents.

Additionally this functionality is used for implementing
a fake environment because WinRT does not support
getting/setting of environment variables. The approach
here is also the same that is used for wince.

Change-Id: Ifc3b6b796ab8e8ea41456f4c929f9c3f65f24a0e
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Andrew Knight <andrew.knight@digia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>

1 files changed, 105 insertions, 0 deletions

diff --git a/src/corelib/kernel/qfunctions_winrt.cpp b/src/corelib/kernel/qfunctions_winrt.cpp
new file mode 100644
index 0000000000..f4a278dc43
--- /dev/null
+++ b/src/corelib/kernel/qfunctions_winrt.cpp
@@ -0,0 +1,105 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtCore 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
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifdef Q_OS_WINRT
+
+#include "qfunctions_winrt.h"
+#include "qstring.h"
+#include "qbytearray.h"
+#include "qhash.h"
+
+QT_USE_NAMESPACE
+
+// Environment ------------------------------------------------------
+inline QHash<QByteArray, QByteArray> &qt_app_environment()
+{
+    static QHash<QByteArray, QByteArray> internalEnvironment;
+    return internalEnvironment;
+}
+
+errno_t qt_winrt_getenv_s(size_t* sizeNeeded, char* buffer, size_t bufferSize, const char* varName)
+{
+    if (!sizeNeeded)
+        return EINVAL;
+
+    if (!qt_app_environment().contains(varName)) {
+        if (buffer)
+            buffer[0] = '\0';
+        return ENOENT;
+    }
+
+    QByteArray value = qt_app_environment().value(varName);
+    if (!value.endsWith('\0')) // win32 guarantees terminated string
+        value.append('\0');
+
+    if (bufferSize < (size_t)value.size()) {
+        *sizeNeeded = value.size();
+        return 0;
+    }
+
+    strcpy(buffer, value.constData());
+    return 0;
+}
+
+errno_t qt_winrt__putenv_s(const char* varName, const char* value)
+{
+    QByteArray input = value;
+    if (input.isEmpty()) {
+        if (qt_app_environment().contains(varName))
+            qt_app_environment().remove(varName);
+    } else {
+        // win32 on winrt guarantees terminated string
+        if (!input.endsWith('\0'))
+            input.append('\0');
+        qt_app_environment()[varName] = input;
+    }
+
+    return 0;
+}
+
+void qt_winrt_tzset()
+{
+}
+
+void qt_winrt__tzset()
+{
+}
+
+#endif // Q_OS_WINRT