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/*
* LogManager.h
*
* Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MAD_CORE_LOGMANAGER_H_
#define MAD_CORE_LOGMANAGER_H_
#include "export.h"
#include "Configurable.h"
#include "Exception.h"
#include "Logger.h"
#include <queue>
#include <set>
#include <boost/thread/condition_variable.hpp>
#include <boost/thread/mutex.hpp>
namespace Mad {
namespace Core {
class Application;
class ThreadManager;
class MAD_CORE_EXPORT LogManager : public Configurable {
private:
friend class Application;
friend class ThreadManager;
typedef Logger::MessageCategory MessageCategory;
typedef Logger::MessageLevel MessageLevel;
struct Message {
MessageCategory category;
MessageLevel level;
boost::posix_time::ptime timestamp;
std::string message;
std::string source;
};
class ConsoleLogger : public Logger {
private:
// For long messages, writing to cerr is not atomic
// -> lock cerr to prevent messages mixing up
boost::mutex cerrMutex;
protected:
virtual void logMessage(MessageCategory category, MessageLevel, boost::posix_time::ptime timestamp, const std::string &message, const std::string &source);
public:
ConsoleLogger() {}
void logMessageDirect(MessageCategory category, MessageLevel level, boost::posix_time::ptime timestamp, const std::string &message, const std::string &source);
};
Application *application;
boost::shared_ptr<ConsoleLogger> consoleLogger;
std::set<boost::shared_ptr<Logger> > loggers;
bool configured, running;
boost::mutex queueMutex;
boost::condition_variable queueCond;
boost::mutex loggerMutex;
std::queue<Message> messageQueue;
void loggerThread();
void stopLoggerThread() {
boost::lock_guard<boost::mutex> lock(queueMutex);
running = false;
queueCond.notify_one();
}
LogManager(Application *application0);
~LogManager();
protected:
virtual bool handleConfigEntry(const ConfigEntry &entry, bool handled);
virtual void configFinished();
public:
static MessageLevel parseLevel(const std::string &str) throw (Exception);
void log(MessageCategory category, MessageLevel level, boost::posix_time::ptime timestamp, const std::string &message, const std::string &source = std::string());
void registerLogger(boost::shared_ptr<Logger> logger) {
boost::lock_guard<boost::mutex> lock(loggerMutex);
loggers.insert(logger);
}
void unregisterLogger(boost::shared_ptr<Logger> logger) {
boost::lock_guard<boost::mutex> lock(loggerMutex);
loggers.erase(logger);
}
};
}
}
#endif /* MAD_CORE_LOGMANAGER_H_ */
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