From dc75c20397e7322ba87578e766e0cd86ece90f93 Mon Sep 17 00:00:00 2001
From: David Faure <faure@kde.org>
Date: Sun, 26 Feb 2012 10:05:39 +0100
Subject: Split up base class QFileDevice for open-file operations (read/write)

This will be used later on as a base class for QTemporaryFile and
QSaveFile.

Change-Id: Ic2e1d232f95dc29b8e2f75e24a881ab459d3f037
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
---
 src/corelib/io/qfiledevice.h | 147 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 147 insertions(+)
 create mode 100644 src/corelib/io/qfiledevice.h

(limited to 'src/corelib/io/qfiledevice.h')

diff --git a/src/corelib/io/qfiledevice.h b/src/corelib/io/qfiledevice.h
new file mode 100644
index 0000000000..bbde91842c
--- /dev/null
+++ b/src/corelib/io/qfiledevice.h
@@ -0,0 +1,147 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** 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.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QFILEDEVICE_H
+#define QFILEDEVICE_H
+
+#include <QtCore/qiodevice.h>
+#include <QtCore/qstring.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+class QFileDevicePrivate;
+
+class Q_CORE_EXPORT QFileDevice : public QIODevice
+{
+#ifndef QT_NO_QOBJECT
+    Q_OBJECT
+#endif
+    Q_DECLARE_PRIVATE(QFileDevice)
+
+public:
+    enum FileError {
+        NoError = 0,
+        ReadError = 1,
+        WriteError = 2,
+        FatalError = 3,
+        ResourceError = 4,
+        OpenError = 5,
+        AbortError = 6,
+        TimeOutError = 7,
+        UnspecifiedError = 8,
+        RemoveError = 9,
+        RenameError = 10,
+        PositionError = 11,
+        ResizeError = 12,
+        PermissionsError = 13,
+        CopyError = 14
+    };
+
+    enum Permission {
+        ReadOwner = 0x4000, WriteOwner = 0x2000, ExeOwner = 0x1000,
+        ReadUser  = 0x0400, WriteUser  = 0x0200, ExeUser  = 0x0100,
+        ReadGroup = 0x0040, WriteGroup = 0x0020, ExeGroup = 0x0010,
+        ReadOther = 0x0004, WriteOther = 0x0002, ExeOther = 0x0001
+    };
+    Q_DECLARE_FLAGS(Permissions, Permission)
+
+    enum FileHandleFlag {
+        AutoCloseHandle = 0x0001,
+        DontCloseHandle = 0
+    };
+    Q_DECLARE_FLAGS(FileHandleFlags, FileHandleFlag)
+
+    ~QFileDevice();
+
+    FileError error() const;
+    void unsetError();
+
+    virtual void close();
+
+    bool isSequential() const;
+
+    int handle() const;
+    virtual QString fileName() const;
+
+    qint64 pos() const;
+    bool seek(qint64 offset);
+    bool atEnd() const;
+    bool flush();
+
+    qint64 size() const;
+
+    virtual bool resize(qint64 sz);
+    virtual Permissions permissions() const;
+    virtual bool setPermissions(Permissions permissionSpec);
+
+    enum MemoryMapFlags {
+        NoOptions = 0
+    };
+
+    uchar *map(qint64 offset, qint64 size, MemoryMapFlags flags = NoOptions);
+    bool unmap(uchar *address);
+
+protected:
+    QFileDevice();
+#ifdef QT_NO_QOBJECT
+    QFileDevice(QFileDevicePrivate &dd);
+#else
+    explicit QFileDevice(QObject *parent);
+    QFileDevice(QFileDevicePrivate &dd, QObject *parent = 0);
+#endif
+
+    qint64 readData(char *data, qint64 maxlen);
+    qint64 writeData(const char *data, qint64 len);
+    qint64 readLineData(char *data, qint64 maxlen);
+
+private:
+    Q_DISABLE_COPY(QFileDevice)
+};
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QFileDevice::Permissions)
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QFILEDEVICE_H
-- 
cgit v1.2.3