Add callgrind support to valgrind library.

Merge-request: 284
Reviewed-by: hjk <qtc-committer@nokia.com>

src/libs/valgrind/callgrind/callgrindparser.h

@@ -0,0 +1,85 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator Instrumentation Tools
+**
+** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** 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.
+**
+**************************************************************************/
+
+#ifndef LIBVALGRIND_CALLGRIND_PARSER_H
+#define LIBVALGRIND_CALLGRIND_PARSER_H
+
+#include "../valgrind_global.h"
+
+#include <QObject>
+
+QT_BEGIN_NAMESPACE
+class QIODevice;
+QT_END_NAMESPACE
+
+namespace Valgrind {
+namespace Callgrind {
+
+class ParseData;
+
+/**
+ * Parser for Valgrind --tool=callgrind output
+ * most of the format is documented at http://kcachegrind.sourceforge.net/html/CallgrindFormat.html
+ *
+ * FIXME: most length asserts are not correct, see documentation 1.2:
+ * "If a cost line specifies less event counts than given in the "events" line,
+ * the rest is assumed to be zero."
+ *
+ */
+class VALGRINDSHARED_EXPORT Parser : public QObject {
+    Q_OBJECT
+public:
+    explicit Parser(QObject *parent=0);
+    ~Parser();
+
+    // get and take ownership of the parsing results. If this method is not called the repository
+    // will be destroyed when the parser is destroyed. Subsequent calls return null.
+    ParseData *takeData();
+
+signals:
+    void parserDataReady();
+
+public Q_SLOTS:
+    void parse(QIODevice *stream);
+
+private:
+    Q_DISABLE_COPY(Parser)
+
+    class Private;
+    Private *const d;
+};
+
+} // Callgrind
+} // Valgrind
+
+#endif //LIBVALGRIND_CALLGRIND_PARSER_H