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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 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 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/>.
*/
#ifndef MAD_CORE_LOGMANAGER_H_
#define MAD_CORE_LOGMANAGER_H_
#include <config.h>
#include "Configurable.h"
#include "Logger.h"
#include "RemoteLogger.h"
#include <queue>
#include <set>
#include <boost/thread/condition_variable.hpp>
#include <boost/thread/mutex.hpp>
namespace Mad {
namespace Core {
class ThreadManager;
class LogManager : public Configurable {
private:
friend class ThreadManager;
typedef LoggerBase::MessageCategory MessageCategory;
typedef LoggerBase::MessageLevel MessageLevel;
struct Message {
MessageCategory category;
MessageLevel level;
time_t timestamp;
std::string message;
};
struct RemoteMessage {
MessageCategory category;
MessageLevel level;
time_t timestamp;
std::string message;
std::string source;
};
class ConsoleLogger : public Logger, public RemoteLogger {
private:
// For long messages, writing to cerr is not atomic
// -> lock cerr to prevent mixing messages up
boost::mutex cerrLock;
protected:
virtual void logMessage(MessageCategory category _UNUSED_PARAMETER_, MessageLevel level, time_t timestamp _UNUSED_PARAMETER_, const std::string &message);
virtual void logMessage(MessageCategory category _UNUSED_PARAMETER_, MessageLevel, time_t timestamp _UNUSED_PARAMETER_, const std::string &message, const std::string &messageSource);
public:
ConsoleLogger() {}
void logMessageDirect(MessageCategory category _UNUSED_PARAMETER_, MessageLevel level _UNUSED_PARAMETER_, time_t timestamp _UNUSED_PARAMETER_, const std::string &message);
};
static LogManager logManager;
boost::shared_ptr<ConsoleLogger> consoleLogger;
std::set<boost::shared_ptr<Logger> > loggers;
std::set<boost::shared_ptr<RemoteLogger> > remoteLoggers;
bool configured, running;
boost::mutex queueLock;
boost::condition_variable queueCond;
boost::mutex loggerLock;
boost::mutex remoteLoggerLock;
std::queue<Message> messageQueue;
std::queue<RemoteMessage> remoteMessageQueue;
void loggerThread();
void stopLoggerThread() {
queueLock.lock();
running = false;
queueLock.unlock();
queueCond.notify_one();
}
LogManager() : consoleLogger(new ConsoleLogger), configured(false), running(false) {}
protected:
virtual bool handleConfigEntry(const ConfigEntry &entry, bool handled);
virtual void configFinished();
public:
void log(MessageCategory category, MessageLevel level, time_t timestamp, const std::string &message);
void log(MessageCategory category, MessageLevel level, time_t timestamp, const std::string &message, const std::string &source);
void registerLogger(boost::shared_ptr<Logger> logger) {
loggerLock.lock();
loggers.insert(logger);
loggerLock.unlock();
}
void unregisterLogger(boost::shared_ptr<Logger> logger) {
loggerLock.lock();
loggers.erase(logger);
loggerLock.unlock();
}
void registerLogger(boost::shared_ptr<RemoteLogger> logger) {
remoteLoggerLock.lock();
remoteLoggers.insert(logger);
remoteLoggerLock.unlock();
}
void unregisterLogger(boost::shared_ptr<RemoteLogger> logger) {
remoteLoggerLock.lock();
remoteLoggers.erase(logger);
remoteLoggerLock.unlock();
}
static LogManager *get() {
return &logManager;
}
};
}
}
#endif /* MAD_CORE_LOGMANAGER_H_ */
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