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logger.hh
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logger.hh
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#ifndef DOZERG_LOGGER_H_20130320
#define DOZERG_LOGGER_H_20130320
/*
轻量级日志系统
LOGGER_INIT 初始化logger
LOGGER_SET_LEVEL 设置logger级别
LOGGER_SET_MAX_SIZE 设置log文件的最大字节长度
LOGGER_SET_MAX_NUMBER 设置备份log文件的个数
LOGGER_CRASH_HANDLER 注册线程崩溃时的信号处理函数和堆栈
LOGGER_TRACE/TRACE 输出指定级别的log
LOGGER_DEBUG/DEBUG
LOGGER_INFO/INFO
LOGGER_WARN/WARN
LOGGER_ERROR/ERROR
LOGGER_FATAL/FATAL
LOGGER_ASSERT/ASSERT 可输出log的断言
//*/
#include "impl/logger_impl.hh"
NS_SERVER_BEGIN
//设置logger级别
//level:
// "TRACE" 记录TRACE及以上log
// "DEBUG" 记录DEBUG及以上log
// "INFO" 记录INFO及以上log
// "WARN" 记录WARN及以上log
// "ERROR" 记录ERROR及以上log
// "FATAL" 记录FATAL及以上log
// "OFF"或其他 关闭log
inline void LOGGER_SET_LEVEL(const std::string & level)
{
NS_IMPL::CGlobalLogger::Instance().setLevel(level);
}
//设置log文件的最大字节长度
//maxSize:
// <4K log文件最大4K
// 其他 log文件最大字节数
inline void LOGGER_SET_MAX_SIZE(size_t maxSize)
{
NS_IMPL::CGlobalLogger::Instance().setMaxSize(maxSize);
}
//设置备份log文件的个数
inline void LOGGER_SET_MAX_NUMBER(int maxNumber)
{
NS_IMPL::CGlobalLogger::Instance().setMaxNumber(maxNumber);
}
//注册线程崩溃时的信号处理函数和堆栈
//当前处理的信号有：SIGSEGV, SIGBUS, SIGFPE, SIGILL, SIGABRT
//每个线程应该单独注册，否则信号处理函数的堆栈设置会无效
//return:
// true succ
// false failed
inline bool LOGGER_CRASH_HANDLER()
{
return NS_IMPL::CGlobalLogger::Instance().registerCrashHandler();
}
//初始化logger
//fname: log文件名，备份log文件名为: fname.1, fname.2, ...
//level: 同LOGGER_SET_LEVEL(level)
//maxSize: 同LOGGER_SET_MAX_SIZE(maxSize)
//maxNumber: 同LOGGER_SET_MAX_NUMBER(maxNumber)
//return:
// true succ
// false failed
inline bool LOGGER_INIT(const std::string & fname, const std::string & level, size_t maxSize, int maxNumber)
{
LOGGER_SET_LEVEL(level);
LOGGER_SET_MAX_SIZE(maxSize);
LOGGER_SET_MAX_NUMBER(maxNumber);
return NS_IMPL::CGlobalLogger::Instance().init(fname);
}
//记录指定level的log
//console: 是否同时在终端打印出来
#define LOGGER_LOG(level, msg, console) \
do{ \
const bool file = NS_SERVER::NS_IMPL::CGlobalLogger::Instance().shouldLog(level); \
if(file || console){ \
NS_SERVER::NS_IMPL::CLocalLogger logger(level, __FILE__, __LINE__, __FUNCTION__); \
logger.oss()<<msg<<'\n'; \
if(file) \
logger.log(); \
if(console) \
logger.print(); \
} \
}while(0)
//记录log
#define LOGGER_TRACE(msg) LOGGER_LOG(NS_SERVER::NS_IMPL::CGlobalLogger::kTrace, msg, false)
#define LOGGER_DEBUG(msg) LOGGER_LOG(NS_SERVER::NS_IMPL::CGlobalLogger::kDebug, msg, false)
#define LOGGER_INFO(msg) LOGGER_LOG(NS_SERVER::NS_IMPL::CGlobalLogger::kInfo, msg, false)
#define LOGGER_WARN(msg) LOGGER_LOG(NS_SERVER::NS_IMPL::CGlobalLogger::kWarn, msg, false)
#define LOGGER_ERROR(msg) LOGGER_LOG(NS_SERVER::NS_IMPL::CGlobalLogger::kError, msg, false)
#define LOGGER_FATAL(msg) LOGGER_LOG(NS_SERVER::NS_IMPL::CGlobalLogger::kFatal, msg, true)
//断言log
#ifndef NDEBUG
# define LOGGER_ASSERT(expr, msg) do{if(!(expr)){LOGGER_FATAL("ASSERT(" #expr ") failed: "<<msg);::abort();}}while(0)
#else
# define LOGGER_ASSERT(expr, msg)
#endif
//方便使用
//注意：如果其他库或文件也定义了以下的宏，则需要在本文件之前#include
#ifndef TRACE
# define TRACE LOGGER_TRACE
#endif
#ifndef DEBUG
# define DEBUG LOGGER_DEBUG
#endif
#ifndef INFO
# define INFO LOGGER_INFO
#endif
#ifndef WARN
# define WARN LOGGER_WARN
#endif
#ifndef ERROR
# define ERROR LOGGER_ERROR
#endif
#ifndef FATAL
# define FATAL LOGGER_FATAL
#endif
#ifndef ASSERT
# define ASSERT LOGGER_ASSERT
#endif
NS_SERVER_END
#endif