src/Thread_MessageHandler.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2014 LoRd_MuldeR <MuldeR2@GMX.de>
   4 //
   5 // This program is free software; you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation; either version 2 of the License, or
   8 // (at your option) any later version, but always including the *additional*
   9 // restrictions defined in the "License.txt" file.
  10 //
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with this program; if not, write to the Free Software Foundation, Inc.,
  18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 //
  20 // http://www.gnu.org/licenses/gpl-2.0.txt
  21 ///////////////////////////////////////////////////////////////////////////////
  22
  23 #include "Thread_MessageHandler.h"
  24
  25 //Internal
  26 #include "Global.h"
  27
  28 //MUtils
  29 #include <MUtils/IPCChannel.h>
  30
  31 //Qt
  32 #include <QSharedMemory>
  33 #include <QSystemSemaphore>
  34 #include <QMessageBox>
  35
  36 //CRL
  37 #include <limits.h>
  38
  39 ////////////////////////////////////////////////////////////
  40 // Constructor
  41 ////////////////////////////////////////////////////////////
  42
  43 MessageHandlerThread::MessageHandlerThread(MUtils::IPCChannel *const ipcChannel)
  44 :
  45         m_ipcChannel(ipcChannel)
  46 {
  47         m_aborted = false;
  48         m_parameter = new char[4096];
  49 }
  50
  51 MessageHandlerThread::~MessageHandlerThread(void)
  52 {
  53         delete [] m_parameter;
  54 }
  55
  56 void MessageHandlerThread::run()
  57 {
  58         m_aborted = false;
  59         setTerminationEnabled(true);
  60
  61         while(!m_aborted)
  62         {
  63                 unsigned int command = 0;
  64                 m_ipcChannel->read(command, m_parameter, 4096);
  65                 if(!command) continue;
  66
  67                 switch(command)
  68                 {
  69                 case 1:
  70                         emit fileReceived(QString::fromUtf8(m_parameter));
  71                         break;
  72                 case 2:
  73                         emit folderReceived(QString::fromUtf8(m_parameter), false);
  74                         break;
  75                 case 3:
  76                         emit folderReceived(QString::fromUtf8(m_parameter), true);
  77                         break;
  78                 case 666:
  79                         if(!_stricmp(m_parameter, "Force!"))
  80                         {
  81                                 _exit(-2);
  82                         }
  83                         else
  84                         {
  85                                 emit killSignalReceived();
  86                         }
  87                         break;
  88                 case UINT_MAX:
  89                         emit otherInstanceDetected();
  90                         break;
  91                 default:
  92                         qWarning("Received an unknown IPC message! (command=%u)", command);
  93                         break;
  94                 }
  95         }
  96 }
  97
  98 void MessageHandlerThread::stop(void)
  99 {
 100         if(!m_aborted)
 101         {
 102                 m_aborted = true;
 103                 m_ipcChannel->send(0, NULL);
 104         }
 105 }
 106
 107 ////////////////////////////////////////////////////////////
 108 // EVENTS
 109 ////////////////////////////////////////////////////////////
 110
 111 /*NONE*/