Chris@685: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@685: 
Chris@685: /*
Chris@685:     Sonic Visualiser
Chris@685:     An audio file viewer and annotation editor.
Chris@685:     Centre for Digital Music, Queen Mary, University of London.
Chris@685:     This file copyright 2010-2011 Chris Cannam and QMUL.
Chris@685:     
Chris@685:     This program is free software; you can redistribute it and/or
Chris@685:     modify it under the terms of the GNU General Public License as
Chris@685:     published by the Free Software Foundation; either version 2 of the
Chris@685:     License, or (at your option) any later version.  See the file
Chris@685:     COPYING included with this distribution for more information.
Chris@685: */
Chris@685: 
Chris@685: #include "Debug.h"
Chris@685: #include "ResourceFinder.h"
Chris@685: 
Chris@685: #include <QString>
Chris@685: #include <QUrl>
Chris@685: #include <QMutex>
Chris@685: #include <QMutexLocker>
Chris@685: #include <QFile>
Chris@685: #include <QDir>
Chris@685: #include <QCoreApplication>
Chris@685: #include <QDateTime>
Chris@685: 
Chris@685: #include <cstdio>
Chris@685: 
Chris@685: QDebug &
Chris@685: getSVDebug()
Chris@685: {
Chris@685:     static QFile *logFile = 0;
Chris@685:     static QDebug *debug = 0;
Chris@685:     static QMutex mutex;
Chris@685:     static char *prefix;
Chris@685:     mutex.lock();
Chris@685:     if (!debug) {
Chris@685:         prefix = new char[20];
Chris@685:         sprintf(prefix, "[%lu]", (unsigned long)QCoreApplication::applicationPid());
Chris@685: 	QString pfx = ResourceFinder().getUserResourcePrefix();
Chris@685: 	QDir logdir(QString("%1/%2").arg(pfx).arg("log"));
Chris@685: 	if (!logdir.exists()) logdir.mkpath(logdir.path());
Chris@685:         logFile = new QFile(logdir.path() + "/debug.log");
Chris@685:         if (logFile->open(QIODevice::WriteOnly | QIODevice::Truncate)) {
Chris@685:             QDebug(QtDebugMsg) << (const char *)prefix
Chris@685:                                << "Opened debug log file "
Chris@685:                                << logFile->fileName();
Chris@685:             debug = new QDebug(logFile);
Chris@685:         } else {
Chris@685:             QDebug(QtWarningMsg) << (const char *)prefix
Chris@685:                                  << "Failed to open debug log file "
Chris@685:                                  << logFile->fileName()
Chris@685:                                  << " for writing, using console debug instead";
Chris@685:             debug = new QDebug(QtDebugMsg);
Chris@685:             delete logFile;
Chris@685:             logFile = 0;
Chris@685:         }
Chris@685:         *debug << endl << (const char *)prefix << "Log started at "
Chris@685:                << QDateTime::currentDateTime().toString();
Chris@685:     }
Chris@685:     mutex.unlock();
Chris@685: 
Chris@685:     QDebug &dref = *debug;
Chris@685:     return dref << endl << (const char *)prefix;
Chris@685: }
Chris@685: 
Chris@685: QDebug &
Chris@685: operator<<(QDebug &dbg, const std::string &s)
Chris@685: {
Chris@685:     dbg << QString::fromUtf8(s.c_str());
Chris@685:     return dbg;
Chris@685: }
Chris@685: 
Chris@685: std::ostream &
Chris@685: operator<<(std::ostream &target, const QString &str)
Chris@685: {
Chris@685:     return target << str.toLocal8Bit().data();
Chris@685: }
Chris@685: 
Chris@685: std::ostream &
Chris@685: operator<<(std::ostream &target, const QUrl &u)
Chris@685: {
Chris@685:     return target << "<" << u.toString() << ">";
Chris@685: }
Chris@685: