annotate base/Debug.cpp @ 1833:21c792334c2e sensible-delimited-data-strings

Rewrite all the DelimitedDataString stuff so as to return vectors of individual cell strings rather than having the classes add the delimiters themselves. Rename accordingly to names based on StringExport. Take advantage of this in the CSV writer code so as to properly quote cells that contain delimiter characters.

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2010-2011 Chris Cannam and QMUL.
    
    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.  See the file
    COPYING included with this distribution for more information.
*/

#include "Debug.h"
#include "ResourceFinder.h"

#include <QMutex>
#include <QDir>
#include <QUrl>
#include <QCoreApplication>
#include <QDateTime>

#include <stdexcept>

static SVDebug *svdebug = nullptr;
static SVCerr *svcerr = nullptr;
static QMutex mutex;

SVDebug &getSVDebug() {
    mutex.lock();
    if (!svdebug) {
        svdebug = new SVDebug();
    }
    mutex.unlock();
    return *svdebug;
}

SVCerr &getSVCerr() {
    mutex.lock();
    if (!svcerr) {
        if (!svdebug) {
            svdebug = new SVDebug();
        }
        svcerr = new SVCerr(*svdebug);
    }
    mutex.unlock();
    return *svcerr;
}

bool SVDebug::m_silenced = false;
bool SVCerr::m_silenced = false;

SVDebug::SVDebug() :
    m_prefix(nullptr),
    m_ok(false),
    m_eol(true)
{
    if (m_silenced) return;
    
    if (qApp->applicationName() == "") {
        cerr << "ERROR: Can't use SVDEBUG before setting application name" << endl;
        throw std::logic_error("Can't use SVDEBUG before setting application name");
    }
    
    QString pfx = ResourceFinder().getUserResourcePrefix();
    QDir logdir(QString("%1/%2").arg(pfx).arg("log"));

    m_prefix = strdup(QString("[%1]")
                      .arg(QCoreApplication::applicationPid())
                      .toLatin1().data());

    //!!! what to do if mkpath fails?
    if (!logdir.exists()) logdir.mkpath(logdir.path());

    QString fileName = logdir.path() + "/sv-debug.log";

    m_stream.open(fileName.toLocal8Bit().data(), std::ios_base::out);

    if (!m_stream) {
        QDebug(QtWarningMsg) << (const char *)m_prefix
                             << "Failed to open debug log file "
                             << fileName << " for writing";
    } else {
        m_ok = true;
//        cerr << "Log file is " << fileName << endl;
        (*this) << "Debug log started at "
                << QDateTime::currentDateTime().toString() << endl;
    }
}

SVDebug::~SVDebug()
{
    if (m_stream) m_stream.close();
}

QDebug &
operator<<(QDebug &dbg, const std::string &s)
{
    dbg << QString::fromUtf8(s.c_str());
    return dbg;
}

std::ostream &
operator<<(std::ostream &target, const QString &str)
{
    return target << str.toStdString();
}

std::ostream &
operator<<(std::ostream &target, const QUrl &u)
{
    return target << "<" << u.toString().toStdString() << ">";
}