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////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2011-2024 The Octave Project Developers
//
// See the file COPYRIGHT.md in the top-level directory of this
// distribution or <https://octave.org/copyright/>.
//
// This file is part of Octave.
//
// Octave 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 3 of the License, or
// (at your option) any later version.
//
// Octave 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 Octave; see the file COPYING. If not, see
// <https://www.gnu.org/licenses/>.
//
////////////////////////////////////////////////////////////////////////
#if defined (HAVE_CONFIG_H)
# include "config.h"
#endif
#include <cstdio>
#include <QMutex>
#include <QMutexLocker>
#include <QProcessEnvironment>
#include "Logger.h"
OCTAVE_BEGIN_NAMESPACE(octave)
Logger *Logger::s_instance = nullptr;
QMutex *Logger::s_mutex = nullptr;
Logger::Logger ()
: m_debugEnabled (false)
{
QProcessEnvironment pe (QProcessEnvironment::systemEnvironment ());
if (pe.value ("QTHANDLES_DEBUG", "0") != "0")
m_debugEnabled = true;
}
Logger::~Logger ()
{ }
Logger *
Logger::instance ()
{
if (! s_instance)
{
s_instance = new Logger ();
s_mutex = new QMutex ();
}
return s_instance;
}
#define STATIC_LOGGER(fcn) \
void Logger::fcn (const char *fmt, ...) \
{ \
QMutexLocker lock (s_mutex); \
va_list vl; \
va_start (vl, fmt); \
instance ()->fcn ## V (fmt, vl); \
va_end (vl); \
}
STATIC_LOGGER (debug)
void
Logger::debugV (const char *fmt, va_list arg)
{
if (m_debugEnabled)
{
vfprintf (stderr, fmt, arg);
fprintf (stderr, "\n");
}
}
OCTAVE_END_NAMESPACE(octave)
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