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@1061: #include <QMutex>
Chris@1061: #include <QDir>
Chris@685: #include <QUrl>
Chris@685: #include <QCoreApplication>
Chris@685: 
Chris@1247: #include <stdexcept>
Chris@685: 
Chris@1275: static SVDebug *svdebug = 0;
Chris@1275: static SVCerr *svcerr = 0;
Chris@950: static QMutex mutex;
Chris@950: 
Chris@1061: SVDebug &getSVDebug() {
Chris@1061:     mutex.lock();
Chris@1275:     if (!svdebug) {
Chris@1275:         svdebug = new SVDebug();
Chris@1061:     }
Chris@1061:     mutex.unlock();
Chris@1275:     return *svdebug;
Chris@1061: }
Chris@1061: 
Chris@1275: SVCerr &getSVCerr() {
Chris@1275:     mutex.lock();
Chris@1275:     if (!svcerr) {
Chris@1275:         if (!svdebug) {
Chris@1275:             svdebug = new SVDebug();
Chris@1275:         }
Chris@1275:         svcerr = new SVCerr(*svdebug);
Chris@1275:     }
Chris@1275:     mutex.unlock();
Chris@1275:     return *svcerr;
Chris@1275: }
Chris@1275: 
Chris@1275: bool SVDebug::m_silenced = false;
Chris@1275: bool SVCerr::m_silenced = false;
Chris@1275: 
Chris@1061: SVDebug::SVDebug() :
Chris@1061:     m_prefix(0),
Chris@1061:     m_ok(false),
Chris@1275:     m_eol(true)
Chris@685: {
Chris@1275:     if (m_silenced) return;
Chris@1275:     
Chris@1247:     if (qApp->applicationName() == "") {
Chris@1247:         cerr << "ERROR: Can't use SVDEBUG before setting application name" << endl;
Chris@1247:         throw std::logic_error("Can't use SVDEBUG before setting application name");
Chris@1247:     }
Chris@1247:     
Chris@951:     QString pfx = ResourceFinder().getUserResourcePrefix();
Chris@951:     QDir logdir(QString("%1/%2").arg(pfx).arg("log"));
Chris@951: 
Chris@1061:     m_prefix = strdup(QString("[%1]")
Chris@1061:                       .arg(QCoreApplication::applicationPid())
Chris@1061:                       .toLatin1().data());
Chris@951: 
Chris@1058:     //!!! what to do if mkpath fails?
Chris@1058:     if (!logdir.exists()) logdir.mkpath(logdir.path());
Chris@1058: 
Chris@1061:     QString fileName = logdir.path() + "/sv-debug.log";
Chris@1061: 
Chris@1061:     m_stream.open(fileName.toLocal8Bit().data(), std::ios_base::out);
Chris@1061: 
Chris@1061:     if (!m_stream) {
Chris@1061:         QDebug(QtWarningMsg) << (const char *)m_prefix
Chris@1061:                              << "Failed to open debug log file "
Chris@1061:                              << fileName << " for writing";
Chris@951:     } else {
Chris@1299: //        cerr << m_prefix << ": Log file is " << fileName << endl;
Chris@1061:         m_ok = true;
Chris@685:     }
Chris@1061: }
Chris@685: 
Chris@1061: SVDebug::~SVDebug()
Chris@1061: {
Chris@1275:     if (m_stream) m_stream.close();
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@846:     return target << str.toStdString();
Chris@685: }
Chris@685: 
Chris@685: std::ostream &
Chris@685: operator<<(std::ostream &target, const QUrl &u)
Chris@685: {
Chris@846:     return target << "<" << u.toString().toStdString() << ">";
Chris@685: }
Chris@685: