Mercurial > hg > svcore
view base/Debug.cpp @ 1771:40420fa95ffe
Print log file location
author | Chris Cannam |
---|---|
date | Tue, 13 Aug 2019 14:31:38 +0100 |
parents | 70e172e6cc59 |
children | 07a8793a0388 |
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/* -*- 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() << ">"; }