一个打印日志函数

来源：互联网发布：单片机测温电路编辑：程序博客网时间：2024/04/29 19:08

#include<stdio.h>

#include<windows.h>
enum E_TraceLevel // ¸ú×Ù¼¶±ð
{
    e_DEBUG = 0,
    e_TRACE = 1,
    e_ERROR = 2,
    e_LOG   = 3,
    e_ALARM = 4,
    e_FATAL = 5,
    e_ASSERT= 6
};

int gRunLevel = e_DEBUG;
#define LOG_DEBUG   e_DEBUG, __FILE__, __LINE__
#define LOG_TRACE   e_TRACE, __FILE__, __LINE__
#define LOG_ERROR   e_ERROR, __FILE__, __LINE__
#define LOG_LOG     e_LOG,   __FILE__, __LINE__
#define LOG_ALARM   e_ALARM, __FILE__, __LINE__
#define LOG_FATAL   e_FATAL, __FILE__, __LINE__

#define PRINTLOG   PrintLog
void PrintLog (
               IN E_TraceLevel _eTraceLevel
               , IN const char *_sFile
               , IN const int _iLine
               , IN const char *_sFmt
               , IN ...)
{
    if(gRunLevel > _eTraceLevel) return;
    va_list args;
    char strInformation[2048];
    va_start(args, _sFmt);
    _vsnprintf(strInformation, sizeof(strInformation)-1,_sFmt,args);

    FILE * fp = fopen("log.txt", "a");
    SYSTEMTIME DateTime;
    if(fp == NULL)
    {
        return;
    }
    GetLocalTime(&DateTime);
    fprintf(fp
        , "[%04d-%02d-%02d %02d:%02d:%02d] [File:%d Line:%d] %s /n"
        , DateTime.wYear
        , DateTime.wMonth
        , DateTime.wDay
        , DateTime.wHour
        , DateTime.wMinute
        , DateTime.wSecond
        , _sFile
        , _iLine
        , strInformation
        );
    fclose(fp);

    va_end(args);
}

//使用得例子
int main(int argc, char* argv[])
{
PRINTLOG(LOG_DEBUG, "test log fun [%d]", 20);
return 0;
}