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134 lines
3.6 KiB
134 lines
3.6 KiB
/* |
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This file is part of KMail. |
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Copyright (c) 2003 Andreas Gungl <a.gungl@gmx.de> |
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KMail is free software; you can redistribute it and/or modify it |
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under the terms of the GNU General Public License, version 2, as |
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published by the Free Software Foundation. |
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KMail is distributed in the hope that it will be useful, but |
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WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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In addition, as a special exception, the copyright holders give |
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permission to link the code of this program with any edition of |
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the Qt library by Trolltech AS, Norway (or with modified versions |
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of Qt that use the same license as Qt), and distribute linked |
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combinations including the two. You must obey the GNU General |
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Public License in all respects for all of the code used other than |
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Qt. If you modify this file, you may extend this exception to |
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your version of the file, but you are not obligated to do so. If |
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you do not wish to do so, delete this exception statement from |
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your version. |
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*/ |
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#include "filterlog.h" |
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#include <kdebug.h> |
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using namespace KMail; |
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FilterLog * FilterLog::self = NULL; |
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FilterLog::FilterLog() |
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{ |
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self = this; |
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// start with logging enabled by default |
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logging = true; |
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// better limit the log to 512 KByte to avoid out of memory situations |
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// when the log i sgoing to become very long |
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maxLogSize = 512 * 1024; |
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currentLogSize = 0; |
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allowedTypes = meta | patternDesc | ruleResult | |
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patternResult | appliedAction; |
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}; |
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FilterLog::~FilterLog() |
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{} |
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FilterLog * FilterLog::instance() |
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{ |
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if ( !self ) self = new FilterLog(); |
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return self; |
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} |
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void FilterLog::add( QString logEntry, ContentType contentType ) |
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{ |
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#ifndef NDEBUG |
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kdDebug(5006) << "New filter log entry: " << logEntry << endl; |
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#endif |
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if ( isLogging() && ( allowedTypes & contentType ) ) |
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{ |
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logEntries.append( logEntry ); |
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emit logEntryAdded( logEntry ); |
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currentLogSize += logEntry.length(); |
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checkLogSize(); |
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} |
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} |
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void FilterLog::setMaxLogSize( long size ) |
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{ |
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if ( size < -1) |
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size = -1; |
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// do not allow less than 1 KByte except unlimited (-1) |
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if ( size >= 0 && size < 1024 ) |
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size = 1024; |
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maxLogSize = size; |
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checkLogSize(); |
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}; |
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void FilterLog::dump() |
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{ |
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#ifndef NDEBUG |
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kdDebug(5006) << "----- starting filter log -----" << endl; |
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for ( QStringList::Iterator it = logEntries.begin(); |
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it != logEntries.end(); ++it ) |
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{ |
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kdDebug(5006) << *it << endl; |
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} |
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kdDebug(5006) << "------ end of filter log ------" << endl; |
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#endif |
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} |
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void FilterLog::checkLogSize() |
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{ |
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if ( currentLogSize > maxLogSize && maxLogSize >= -1 ) |
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{ |
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kdDebug(5006) << "Filter log: memory limit reached, starting to discard old items, size = " |
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<< QString::number( currentLogSize ) << endl; |
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// avoid some kind of hysteresis, shrink the log to 90% of its maximum |
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while ( currentLogSize > ( maxLogSize * 0.9 ) ) |
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{ |
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QValueListIterator<QString> it = logEntries.begin(); |
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if ( it != logEntries.end()) |
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{ |
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currentLogSize -= (*it).length(); |
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logEntries.remove( it ); |
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kdDebug(5006) << "Filter log: new size = " << QString::number( currentLogSize ) << endl; |
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} |
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else |
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{ |
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kdDebug(5006) << "Filter log: size reduction disaster!" << endl; |
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clear(); |
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} |
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} |
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emit logShrinked(); |
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} |
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} |
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#include "filterlog.moc"
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