File indexing completed on 2024-04-28 17:02:20

 /*
    This file is part of Massif Visualizer
 
    Copyright 2010 Milian Wolff <mail@milianw.de>
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) version 3, or any
    later version accepted by the membership of KDE e.V. (or its
    successor approved by the membership of KDE e.V.), which shall
    act as a proxy defined in Section 6 of version 3 of the license.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public
    License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "parser.h"
 
 #include "filedata.h"
 #include "parserprivate.h"
 #include "snapshotitem.h"
 
 #include <QtCore/QIODevice>
 
 using namespace Massif;
 
 Parser::Parser()
     : m_errorLine(-1)
 {
 }
 
 Parser::~Parser()
 {
 }
 
 FileData* Parser::parse(QIODevice* file, const QStringList& customAllocators, QAtomicInt* shouldStop)
 {
     Q_ASSERT(file->isOpen());
     Q_ASSERT(file->isReadable());
 
     QScopedPointer<FileData> data(new FileData);
 
     ParserPrivate p(this, file, data.data(), customAllocators, shouldStop);
 
     if (p.error()) {
         m_errorLine = p.errorLine();
         m_errorLineString = p.errorLineString();
         return 0;
     } else {
         m_errorLine = -1;
         m_errorLineString.clear();
     }
 
     // when a massif run gets terminated (^C) the snapshot data might be wrong,
     // hence just always ensure we pick the proper peak ourselves
     if (!data->snapshots().isEmpty()) {
         foreach ( SnapshotItem* snapshot, data->snapshots() ) {
             if (!snapshot->heapTree()) {
                 // peak should have detailed info
                 continue;
             }
             if (!data->peak() || snapshot->cost() > data->peak()->cost()) {
                 data->setPeak(snapshot);
             }
         }
         // still not found? pick any other snapshot
         if (!data->peak()) {
             foreach( SnapshotItem* snapshot, data->snapshots() ) {
                 if (!data->peak() || snapshot->cost() > data->peak()->cost()) {
                     data->setPeak(snapshot);
                 }
             }
         }
     }
     // peak might still be zero if we have no snapshots, should be handled in the UI then
 
     return data.take();
 }
 
 int Parser::errorLine() const
 {
     return m_errorLine;
 }
 
 QByteArray Parser::errorLineString() const
 {
     return m_errorLineString;
 }
 
 void Parser::setProgress(int value)
 {
     emit progress(value);
 }