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/*
* Logger.cpp
*
* Copyright (C) 2008 Johannes Thorn <dante@g4t3.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/>.
*/
#include "Logger.h"
#include "ConfigEntry.h"
#include "ConfigManager.h"
#include "Backends/ConsoleLogger.h"
#include "Backends/FileLogger.h"
#include <cstdlib>
namespace Mad {
namespace Common {
std::auto_ptr<Logger::ConfigHelper> Logger::configHelper;
std::set<Logger*> Logger::loggers;
std::auto_ptr<std::queue<Logger::Message> > Logger::messageQueue(new std::queue<Message>);
bool Logger::ConfigHelper::handleConfigEntry(const ConfigEntry &entry, bool handled) {
if(handled)
return false;
if(entry[0].getKey().matches("Logger")) {
if(entry[0][0].matches("Console")) {
if(entry[1].empty()) {
loggers.insert(new Backends::ConsoleLogger());
return true;
}
}
else if(entry[1].empty()) {
logf(WARNING, "Unknown logger '%s'.", entry[0][0].c_str());
return true;
}
}
return false;
}
void Logger::ConfigHelper::configFinished() {
std::auto_ptr<std::queue<Message> > queue = messageQueue;
if(loggers.empty())
loggers.insert(new Backends::ConsoleLogger());
while(!queue->empty()) {
const Message &message = queue->front();
log(message.category, message.level, message.timestamp, message.message);
queue->pop();
}
}
Logger::ConfigHelper::~ConfigHelper() {
// TODO delete all those loggers...
//while(!loggers.empty())
// delete (*loggers.begin());
}
void Logger::logfv(MessageCategory category, MessageLevel level, const char *format, va_list ap) {
int size = 100;
char *buf = (char*)std::malloc(size);
// If buffer is too small, try again with bigger buffer
while(true) {
va_list ap2;
va_copy(ap2, ap);
int n = std::vsnprintf(buf, size, format, ap2);
va_end(ap2);
if(n > -1 && n < size) {
log(category, level, buf);
std::free(buf);
return;
}
if(n > -1)
size = n+1;
else
size *= 2;
buf = (char*)std::realloc(buf, size);
}
}
void Logger::log(MessageCategory category, MessageLevel level, time_t timestamp, const std::string &message) {
if(messageQueue.get()) { // Queue message if loggers aren't configured yet
Message m = {category, level, timestamp, message};
messageQueue->push(m);
return;
}
for(std::set<Logger*>::iterator logger = loggers.begin(); logger != loggers.end(); ++logger) {
if((*logger)->getLevel() >= level && (*logger)->isCategorySet(category))
(*logger)->logMessage(category, level, timestamp, message);
}
}
void Logger::logf(MessageCategory category, MessageLevel level, const char *format, ...) {
va_list ap;
va_start(ap, format);
logfv(category, level, format, ap);
va_end(ap);
}
void Logger::logf(MessageCategory category, const char *format, ...) {
va_list ap;
va_start(ap, format);
logfv(category, DEFAULT, format, ap);
va_end(ap);
}
void Logger::logf(MessageLevel level, const char *format, ...) {
va_list ap;
va_start(ap, format);
logfv(GENERAL, level, format, ap);
va_end(ap);
}
void Logger::logf(const char *format, ...) {
va_list ap;
va_start(ap, format);
logfv(GENERAL, DEFAULT, format, ap);
va_end(ap);
}
}
}
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