/////////////////////////////////////////////////////////////////////////////// // LameXP - Audio Encoder Front-End // Copyright (C) 2004-2014 LoRd_MuldeR // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version, but always including the *additional* // restrictions defined in the "License.txt" file. // // This program 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 General Public License for more details. // // You should have received a copy of the GNU General Public License along // with this program; if not, write to the Free Software Foundation, Inc., // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. // // http://www.gnu.org/licenses/gpl-2.0.txt /////////////////////////////////////////////////////////////////////////////// #include "Tool_Abstract.h" //Internal #include "Global.h" #include "JobObject.h" //MUtils #include #include //Qt #include #include #include #include #include #include /* * Job Object */ QScopedPointer AbstractTool::s_jobObject; QMutex AbstractTool::s_jobObjMtx; /* * Process Timer */ quint64 AbstractTool::s_startProcessTimer = 0ui64; QMutex AbstractTool::s_startProcessMutex; /* * Const */ static const unsigned int START_DELAY = 50U; //in milliseconds static const quint64 START_DELAY_NANO = quint64(START_DELAY) * 10000ui64; //in 100-nanosecond intervals /* * Constructor */ AbstractTool::AbstractTool(void) { QMutexLocker lock(&s_jobObjMtx); if(s_jobObject.isNull()) { s_jobObject.reset(new JobObject()); } m_firstLaunch = true; } /* * Destructor */ AbstractTool::~AbstractTool(void) { } /* * Initialize and launch process object */ bool AbstractTool::startProcess(QProcess &process, const QString &program, const QStringList &args) { QMutexLocker lock(&s_startProcessMutex); while(MUtils::OS::current_file_time() <= s_startProcessTimer) { lock.unlock(); MUtils::OS::sleep_ms(START_DELAY); lock.relock(); } emit messageLogged(commandline2string(program, args) + "\n"); MUtils::init_process(process, QFileInfo(program).absolutePath()); process.start(program, args); if(process.waitForStarted()) { if(s_jobObject) { if(!s_jobObject->addProcessToJob(&process)) { qWarning("Failed to assign process to job object!"); } } MUtils::OS::change_process_priority(&process, -1); if(m_firstLaunch) { emit statusUpdated(0); m_firstLaunch = false; } s_startProcessTimer = MUtils::OS::current_file_time() + START_DELAY_NANO; return true; } emit messageLogged("Process creation has failed :-("); QString errorMsg= process.errorString().trimmed(); if(!errorMsg.isEmpty()) emit messageLogged(errorMsg); process.kill(); process.waitForFinished(-1); s_startProcessTimer = MUtils::OS::current_file_time() + START_DELAY_NANO; return false; } /* * Convert program arguments to single string */ QString AbstractTool::commandline2string(const QString &program, const QStringList &arguments) { QString commandline = (program.contains(' ') ? QString("\"%1\"").arg(program) : program); for(int i = 0; i < arguments.count(); i++) { commandline += (arguments.at(i).contains(' ') ? QString(" \"%1\"").arg(arguments.at(i)) : QString(" %1").arg(arguments.at(i))); } return commandline; }