Linux_common/comm/commLOG.c

#include "commLOG.h"

//日志的编号
int giInfoNumb = 1;
int debugInfo(char *pLogPath, char *pFile, const char *pFuncName, int iLineNumb, char *fmt, ...)
{
    if(NULL == pLogPath ||'\0' == pLogPath[0] || NULL == pFile || '\0' == pFile[0] || NULL == pFuncName ||'\0' == pFuncName[0]){
		printf("debugInfo param err:%s,%s,%s,%d\r\n", pLogPath, pFile, pFuncName, iLineNumb);
        return LOG_VS_ERR;
	}
    //判断文件大小是否清空该文件，每1000次写日志里检测1次文件大小
    if(0 == (giInfoNumb % 10))
    {
        struct stat fileStat;
        if((giInfoNumb >= LOG_LINE_MAX) || ((0 == stat(pLogPath, &fileStat)) && (fileStat.st_size > LOG_SIZE_MAX))){
			printf("\ndebugInfo log too big,%dline,%dbyte\n", giInfoNumb, (int)fileStat.st_size);
            remove(pLogPath);
			giInfoNumb = 0;
		}
    }

    //写入日期、函数信息
    time_t timeSecs = time(NULL);
    struct tm *timeInfo = localtime(&timeSecs);
    char acTitle[LOG_STR_LEN_1024] = { 0 };
	char debugMsg[LOG_STR_LEN_512] = { 0 };
	
    va_list args;
    va_start(args, fmt);
    vsnprintf(debugMsg, sizeof(debugMsg), fmt, args);
    va_end(args);
#if 0    
    snprintf(acTitle, sizeof(acTitle), "[%04d] [%d%02d%02d/%02d:%02d:%02d] [%s] [%s:%d] %s\n", giInfoNumb++,
             timeInfo->tm_year + 1900, timeInfo->tm_mon + 1, timeInfo->tm_mday, 
             timeInfo->tm_hour, timeInfo->tm_min, timeInfo->tm_sec, pFile, pFuncName, iLineNumb,
			 acTitle);
#else	
	//节约空间
    snprintf(acTitle, sizeof(acTitle), "%02d %02d/%02d:%02d:%02d %s\n", giInfoNumb++,
            timeInfo->tm_mday,timeInfo->tm_hour, timeInfo->tm_min, timeInfo->tm_sec,
			debugMsg); 
#endif
	//调试打印
	printf(acTitle);

    //打开文件，写入日志
    FILE *pLogHandle = fopen(pLogPath, "a+");
    if(NULL == pLogHandle){
		printf("ERROR,debugInfo:fopen=%s\n",strerror(errno));
        return LOG_VS_ERR;
	}
    int iLen = strlen(acTitle);
    fwrite(acTitle, iLen, 1, pLogHandle);
	fclose(pLogHandle);
    
    return LOG_VS_OK;
}