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/*
* Copyright © 2013 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Alan Griffiths <alan@octopull.co.uk>
*/
#include "glog_logger.h"
#include <glog/logging.h>
#include <gflags/gflags.h>
#include <mutex>
#include <cstdlib>
namespace ml=mir::logging;
namespace
{
std::once_flag init_flag;
std::once_flag shutdown_flag;
std::once_flag shutdown_flag_gflags;
struct google_glog_guard_t
{
google_glog_guard_t(const char* argv0)
{
std::call_once(init_flag, google::InitGoogleLogging, argv0);
}
~google_glog_guard_t()
{
std::call_once(shutdown_flag, google::ShutdownGoogleLogging);
}
};
struct google_gflag_guard_t
{
~google_gflag_guard_t()
{
std::call_once(shutdown_flag_gflags, google::ShutDownCommandLineFlags);
}
} google_gflag_guard;
}
mir::examples::GlogLogger::GlogLogger(
const char* argv0,
int stderrthreshold,
int minloglevel,
std::string const& log_dir)
{
FLAGS_stderrthreshold = stderrthreshold;
FLAGS_minloglevel = minloglevel;
FLAGS_log_dir = log_dir;
static google_glog_guard_t guard(argv0);
}
void mir::examples::GlogLogger::log(ml::Severity severity, std::string const& message, std::string const& component)
{
static int glog_level[] =
{
google::GLOG_FATAL, // critical = 0,
google::GLOG_ERROR, // error = 1,
google::GLOG_WARNING, // warning = 2,
google::GLOG_INFO, // informational = 3,
google::GLOG_INFO, // debug = 4
};
// Since we're not collecting __FILE__ or __LINE__ this is misleading
google::LogMessage(__FILE__, __LINE__, glog_level[static_cast<int>(severity)]).stream()
<< '[' << component << "] " << message;
}
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