osmo-trx/CommonLibs/Logger.h

110 lines
3.2 KiB
C++

/*
* Copyright 2009, 2010 Free Software Foundation, Inc.
* Copyright 2010 Kestrel Signal Processing, Inc.
*
* This software is distributed under the terms of the GNU Affero Public License.
* See the COPYING file in the main directory for details.
*
* This use of this software may be subject to additional restrictions.
* See the LEGAL file in the main directory for details.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
// (pat) WARNING is stupidly defined in /usr/local/include/osipparser2/osip_const.h.
// This must be outside the #ifndef LOGGER_H to fix it as long as Logger.h included after the above file.
#ifdef WARNING
#undef WARNING
#endif
#ifndef LOGGER_H
#define LOGGER_H
#include <stdint.h>
#include <stdio.h>
#include <sstream>
#include <list>
#include <map>
#include <string>
extern int config_log_level;
#define LOG_EMERG 0 /* system is unusable */
#define LOG_ALERT 1 /* action must be taken immediately */
#define LOG_CRIT 2 /* critical conditions */
#define LOG_ERR 3 /* error conditions */
#define LOG_WARNING 4 /* warning conditions */
#define LOG_NOTICE 5 /* normal but significant condition */
#define LOG_INFO 6 /* informational */
#define LOG_DEBUG 7 /* debug-level messages */
#define _LOG(level) \
Log(LOG_##level).get() << pthread_self() \
<< timestr() << " " __FILE__ ":" << __LINE__ << ":" << __FUNCTION__ << ": "
#define IS_LOG_LEVEL(wLevel) (config_log_level>=LOG_##wLevel)
#ifdef NDEBUG
#define LOG(wLevel) \
if (LOG_##wLevel!=LOG_DEBUG && IS_LOG_LEVEL(wLevel)) _LOG(wLevel)
#else
#define LOG(wLevel) \
if (IS_LOG_LEVEL(wLevel)) _LOG(wLevel)
#endif
#include "Threads.h" // must be after defines above, if these files are to be allowed to use LOG()
/**
A C++ stream-based thread-safe logger.
This object is NOT the global logger;
every log record is an object of this class.
*/
class Log {
public:
protected:
std::ostringstream mStream; ///< This is where we buffer up the log entry.
int mPriority; ///< Priority of current report.
public:
Log(int wPriority)
:mPriority(wPriority)
{ }
// Most of the work is in the destructor.
/** The destructor actually generates the log entry. */
~Log();
std::ostringstream& get();
};
extern bool gLogToConsole; // Output log messages to stdout
const std::string timestr(); // A timestamp to print in messages.
std::ostream& operator<<(std::ostream& os, std::ostringstream& ss);
/**@ Global control and initialization of the logging system. */
//@{
/** Initialize the global logging system. */
void gLogInit(const char* level=NULL, char* fn=NULL);
//@}
#endif
// vim: ts=4 sw=4