ksirc/logfile.cpp

   1 /* This file is part of the KDE project
   2    Copyright (C) 2001 Simon Hausmann <hausmann@kde.org>
   3
   4    This program is free software; you can redistribute it and/or
   5    modify it under the terms of the Artistic License.
   6 */
   7
   8 #include "logfile.h"
   9
  10 #include <assert.h>
  11
  12 #include <qdir.h>
  13 #include <QDate>
  14 #include <QDateTime>
  15 //Added by qt3to4:
  16 #include <QTimerEvent>
  17
  18 #include <kstandarddirs.h>
  19
  20 LogFile::LogFile( const QString &channel, const QString &server )
  21     : m_channel( channel ), m_server( server ), m_file( new QFile() ),
  22       m_flushTimerId( -1 )
  23 {
  24 }
  25
  26 LogFile::~LogFile()
  27 {
  28     closeLog();
  29     delete m_file;
  30 }
  31
  32 void LogFile::open()
  33 {
  34     int suffix = 1;
  35
  36     m_file->setName( makeLogFileName( m_channel, m_server ) );
  37
  38     while ( !m_file->open( QIODevice::WriteOnly | QIODevice::Append ) && suffix < 16000 ) // arbitrary limit ;)
  39     {
  40         m_file->setName( makeLogFileName( m_channel, m_server, suffix ) );
  41         suffix++;
  42     }
  43
  44     assert( m_file->isOpen() == true );
  45
  46     log( QString::fromLatin1( "### Log session started at " )
  47          + QDateTime::currentDateTime().toString()
  48          + QString::fromLatin1( "###\n" ) );
  49 }
  50
  51 void LogFile::closeLog()
  52 {
  53     log( QString::fromLatin1( "### Log session terminated at " )
  54          + QDateTime::currentDateTime().toString()
  55          + QString::fromLatin1( "###\n" ) );
  56
  57     if ( m_flushTimerId != -1 )
  58         killTimer( m_flushTimerId );
  59
  60     m_file->close();
  61 }
  62
  63 void LogFile::log( const QString &message )
  64 {
  65     m_file->writeBlock( message.local8Bit(), message.length() );
  66
  67     if ( m_flushTimerId == -1 )
  68         m_flushTimerId = startTimer( 60000 ); // flush each minute
  69 }
  70
  71 void LogFile::timerEvent( QTimerEvent * )
  72 {
  73     if ( m_file )
  74         m_file->flush();
  75
  76     killTimer( m_flushTimerId );
  77     m_flushTimerId = -1;
  78 }
  79
  80 QString LogFile::makeLogFileName( const QString &channel, const QString &server, int suffix )
  81 {
  82     QString res = channel + '_';
  83
  84     QDate dt = QDate::currentDate();
  85     QString dateStr;
  86     dateStr.sprintf( "%.4d_%.2d_%.2d_", dt.year(), dt.month(), dt.day() );
  87     res += dateStr;
  88
  89     res += server;
  90
  91     res += ".log";
  92
  93     if ( suffix > -1 )
  94         res += '.' + QString::number( suffix );
  95
  96     return locateLocal( "appdata", "logs/" + res );
  97 }