00001 00002 /*************************************************************************** 00003 * fam_thread.cpp - File Alteration Monitor Thread 00004 * 00005 * Created: Sat Jan 24 12:30:10 2009 00006 * Copyright 2006-2009 Tim Niemueller [www.niemueller.de] 00007 * 00008 ****************************************************************************/ 00009 00010 /* This program is free software; you can redistribute it and/or modify 00011 * it under the terms of the GNU General Public License as published by 00012 * the Free Software Foundation; either version 2 of the License, or 00013 * (at your option) any later version. 00014 * 00015 * This program is distributed in the hope that it will be useful, 00016 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00017 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00018 * GNU Library General Public License for more details. 00019 * 00020 * Read the full text in the LICENSE.GPL file in the doc directory. 00021 */ 00022 00023 #include <utils/system/fam_thread.h> 00024 00025 #include <unistd.h> 00026 00027 namespace fawkes { 00028 #if 0 /* just to make Emacs auto-indent happy */ 00029 } 00030 #endif 00031 00032 /** @class FamThread <utils/system/fam_thread.h> 00033 * FileAlterationMonitor thread wrapper. 00034 * This thread wraps a FileAlterationMonitor and runs it continuously possibly 00035 * causing FAM events in this thread context. This thread is useful if you have 00036 * no good place to call FileAlterationMonitor::process_events() in your 00037 * part. 00038 * @author Tim Niemueller 00039 */ 00040 00041 /** Constructor. 00042 * @param fam optional RefPtr to FileAlterationMonitor. If none is given 00043 * one is instantiated by the FamThread instance. 00044 */ 00045 FamThread::FamThread(RefPtr<FileAlterationMonitor> fam) 00046 : Thread("FileAlterationMonitorThread", Thread::OPMODE_CONTINUOUS) 00047 { 00048 __fam = fam; 00049 if (! __fam) { 00050 __fam = RefPtr<FileAlterationMonitor>(new FileAlterationMonitor()); 00051 } 00052 } 00053 00054 /** Get FileAlterationMonitor. 00055 * @return shared pointer to FileAlterationMonitor instance. 00056 */ 00057 RefPtr<FileAlterationMonitor> 00058 FamThread::get_fam() 00059 { 00060 return __fam; 00061 } 00062 00063 00064 void 00065 FamThread::loop() 00066 { 00067 __fam->process_events(-1); 00068 usleep(0); 00069 } 00070 00071 } // end of namespace fawkes