C语言 log等级_实现

#include <stdarg.h>
#include "main.h"
typedef enum
{
	LogLevel_begin = -1,
     
	LogLevel_Trace,
	LogLevel_Debug,
	LogLevel_Info,
	LogLevel_Error,
	LogLevel_Fatal,

      LogLevel_end

} LogLevel_em;

#define PER_LOG_LINE_SIZE 512

static LogLevel_em	  w_emCurLogLevel = LogLevel_Debug ;       //log level switch

static void Send_logMsg(char* w_Msg, uint32_t u32MsgLen);
static void Logger_putMsg(LogLevel_em emLvl, const char*  pcszBodyFmt, va_list vaBodyArgs);

void Logger_trace( const char * w_Fmt, ...)
{
	va_list vaList;

	va_start(vaList, w_Fmt);
	Logger_putMsg(LogLevel_Trace, w_Fmt, vaList);
	va_end(vaList);
}

void Logger_debug(const char * w_Fmt, ...)
{
	va_list vaList;
    
	va_start(vaList, w_Fmt);
	Logger_putMsg(LogLevel_Debug, w_Fmt, vaList);
	va_end(vaList);
}

void Logger_info( const char * w_Fmt, ...)
{
	va_list vaList;

	va_start(vaList, w_Fmt);
	Logger_putMsg(LogLevel_Info, w_Fmt, vaList);
	va_end(vaList);
}

void Logger_error(  const char * w_Fmt, ...)
{
	va_list vaList;

	va_start(vaList, w_Fmt);
	Logger_putMsg(LogLevel_Error, w_Fmt, vaList);
	va_end(vaList);
}

void Logger_fatal( const char * w_Fmt, ...)
{
	va_list vaList;

	va_start(vaList, w_Fmt);
	Logger_putMsg(LogLevel_Fatal, w_Fmt, vaList);
	va_end(vaList);
}

static void Logger_putMsg(LogLevel_em emLvl, const char*  pcszBodyFmt, va_list vaBodyArgs){
    if (w_emCurLogLevel <= emLvl)
    {
            static char s_strMsg[PER_LOG_LINE_SIZE];
            uint32_t u32Len;
            u32Len = vsnprintf(s_strMsg, PER_LOG_LINE_SIZE, pcszBodyFmt, vaBodyArgs)-1;
            #if 0
            s_strMsg[u32Len++]='\n';
            s_strMsg[u32Len]='\0';
            #endif
            Send_logMsg(s_strMsg,u32Len);
    }
}

static void Send_logMsg(char* w_Msg, uint32_t u32MsgLen){   
    #if 1
    printf_log(w_Msg,u32MsgLen);   //需要自己现实    
    #endif
}

C语言 log等级_实现

原文：http://blog.csdn.net/shaohuazuo/article/details/39179643