Mercurial > octave-nkf
view libgui/graphics/Logger.cc @ 19649:4c1f638a381e gui-release
avoid old-style cast warning in libgui
* graphics/Backend.cc: Replace C-style cast with reinterpret_cast.
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 23 Jan 2015 14:37:43 -0500 |
parents | 523878f76518 |
children | 3cc0734283dc |
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/* Copyright (C) 2011-2014 Michael Goffioul 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 <http://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include <QMutex> #include <QMutexLocker> #include <QProcessEnvironment> #include <cstdio> #include "Logger.h" namespace QtHandles { Logger* Logger::s_instance = 0; QMutex* Logger::s_mutex = 0; Logger::Logger (void) : m_debugEnabled (false) { QProcessEnvironment pe (QProcessEnvironment::systemEnvironment ()); if (pe.value ("QTHANDLES_DEBUG", "0") != "0") m_debugEnabled = true; } Logger::~Logger (void) { } Logger* Logger::instance (void) { if (! s_instance) { s_instance = new Logger (); s_mutex = new QMutex (); } return s_instance; } #define STATIC_LOGGER(fun) \ void Logger::fun (const char* fmt, ...) \ { \ QMutexLocker lock (s_mutex); \ va_list vl; \ va_start (vl, fmt); \ instance ()->fun ## 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"); } } }; // namespace QtHandles