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/*
* Phusion Passenger - http://www.modrails.com/
* Copyright (c) 2008, 2009 Phusion
*
* "Phusion Passenger" is a trademark of Hongli Lai & Ninh Bui.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef _PASSENGER_LOGGING_H_
#define _PASSENGER_LOGGING_H_
#include <sys/types.h>
#include <sys/time.h>
#include <unistd.h>
#include <ostream>
#include <sstream>
#include <ctime>
namespace Passenger {
using namespace std;
extern unsigned int _logLevel;
extern ostream *_logStream;
extern ostream *_debugStream;
unsigned int getLogLevel();
void setLogLevel(unsigned int value);
void setDebugFile(const char *logFile = NULL);
/**
* Write the given expression to the given stream.
*
* @param expr The expression to write.
* @param stream A pointer to an object that accepts the '<<' operator.
*/
#define P_LOG_TO(expr, stream) \
do { \
if (stream != 0) { \
time_t the_time; \
struct tm *the_tm; \
char datetime_buf[60]; \
struct timeval tv; \
std::stringstream sstream; \
\
the_time = time(NULL); \
the_tm = localtime(&the_time); \
strftime(datetime_buf, sizeof(datetime_buf), "%F %H:%M:%S", the_tm); \
gettimeofday(&tv, NULL); \
sstream << \
"[ pid=" << ((unsigned long) getpid()) << \
" file=" << __FILE__ << ":" << (unsigned long) __LINE__ << \
" time=" << datetime_buf << "." << (unsigned long) (tv.tv_usec / 1000) << " ]:" << \
"\n " << expr << std::endl; \
*stream << sstream.str(); \
stream->flush(); \
} \
} while (false)
/**
* Write the given expression to the log stream.
*/
#define P_LOG(expr) P_LOG_TO(expr, Passenger::_logStream)
/**
* Write the given expression, which represents a warning,
* to the log stream.
*/
#define P_WARN(expr) P_LOG(expr)
/**
* Write the given expression, which represents an error,
* to the log stream.
*/
#define P_ERROR(expr) P_LOG(expr)
/**
* Write the given expression, which represents a debugging message,
* to the log stream.
*/
#define P_DEBUG(expr) P_TRACE(1, expr)
#ifdef PASSENGER_DEBUG
#define P_TRACE(level, expr) \
do { \
if (Passenger::_logLevel >= level) { \
P_LOG_TO(expr, Passenger::_debugStream); \
} \
} while (false)
#define P_ASSERT(expr, result_if_failed, message) \
do { \
if (!(expr)) { \
P_ERROR("Assertion failed: " << message); \
return result_if_failed; \
} \
} while (false)
#else
#define P_TRACE(level, expr) do { /* nothing */ } while (false)
#define P_ASSERT(expr, result_if_failed, message) do { /* nothing */ } while (false)
#endif
} // namespace Passenger
#endif /* _PASSENGER_LOGGING_H_ */
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