log4z 多线程下日志分流 使用范例

主函数代码:

第6行:  对主日志记录器(默认的日志记录器)进行自定义配置.

第7,8,9行:  动态创建日志记录器(在代码中直接创建).

第12,13行:  首先加载配置文件, 然后根据配置文件中的name获取LoggerId

第16行:  启动log4z.

第19,20,21行: 创建线程分别对不同的日志记录器记录不同的日志.  另外说明一下 所有日志接口都是线程安全的, 对一个LoggerId可以同时在不同线程进行使用.

int main(int argc, char *argv[]){    //add and configure logger    ILog4zManager::GetInstance()->ConfigMainLogger("", "L_MAIN");    g_logger[L_MAIN] = ILog4zManager::GetInstance()->GetMainLogger();    g_logger[L_MYSQL] = ILog4zManager::GetInstance()->DynamicCreateLogger("", "L_MYSQL");    g_logger[L_NET] = ILog4zManager::GetInstance()->DynamicCreateLogger("", "L_NET");          ILog4zManager::GetInstance()->ConfigFromFile("config.xml");    g_logger[L_MONITER] = ILog4zManager::GetInstance()->GetLoggerFromName("L_MONITER");           //start log4z    ILog4zManager::GetInstance()->Start();       //create thread, it create the virtual module .    CreateThread(&MysqlModuleTrace);    CreateThread(&NetworkModuleTrace);    CreateThread(&MoniterModuleTrace);       //virtual the main logic in project.    while(1)    {           LOGI("main thread trace msg ...");        SleepMillisecond(rand()%3000);    }       printf("press anykey to exit.");    getchar();    return 0;}

配置文件参考:

<!--at current version, configure can't support xml Comments.--><!--logger id must in the region [0,LOGGER_MAX) --><logger>    <path>./log/</path> <!--#path-->    <name>L_MONITER</name> <!--#name-->    <level>0</level> <!--#DEBUG WARN ERROR ALARM FATAL-->    <display>1</display> <!--#display to screent--></logger>

生成结果的图片和日志文件 可参考源代码doc目录下的word说明文档.

完整代码如下:

#include "../log4z.h"#include <iostream>#include <stdio.h>   #if WIN32#include <Windows.h>#include <process.h>#else#include <pthread.h>#include <stdlib.h>#endifusing namespace zsummer::log4z;   //cross platform function://sleep in linux or windowsvoid SleepMillisecond(unsigned int ms);//create thread in linux or windowsbool CreateThread(void(*run)());      //enum multi loggerenum ENUM_LOGGER{    L_MAIN=0, //the main logger, It away exist.    L_MYSQL,    //the user-defined logger.    L_NET,      //the user-defined logger.    L_MONITER,  //the user-defined logger.};   LoggerId g_logger[L_MONITER+1];   //virtual the mysql module in a project.void MysqlModuleTrace(){    while(1)    {        LOG_DEBUG(g_logger[L_MYSQL], "mysql trace some msg ...");        LOG_DEBUG(g_logger[L_MYSQL], "mysql trace some msg ...");        if (rand()%100 <2)        {            LOG_FATAL(g_logger[L_MYSQL], "mysql some time put the fatal msg ...");        }        if (rand()%100 <5)        {            LOG_ERROR(g_logger[L_MYSQL], "mysql some time put the error msg ...");        }        SleepMillisecond(rand()%30);    }}//virtual the Network module in a project.void NetworkModuleTrace(){    while(1)    {        LOG_DEBUG(g_logger[L_NET], "network trace some msg ...");        LOG_DEBUG(g_logger[L_NET], "network trace some msg ...");        if (rand()%100 <2)        {            LOG_FATAL(g_logger[L_NET], "network some time put the fatal msg ...");        }        if (rand()%100 <5)        {            LOG_ERROR(g_logger[L_NET], "network some time put the error msg ...");        }        SleepMillisecond(rand()%30);    }}//virtual the Moniter module in a project.void MoniterModuleTrace(){    while(1)    {        LOG_DEBUG(g_logger[L_MONITER], "network trace some msg ...");        LOG_DEBUG(g_logger[L_MONITER], "network trace some msg ...");        if (rand()%100 <2)        {            LOG_WARN(g_logger[L_MONITER], "network some time put the warning msg ...");        }        if (rand()%100 <5)        {            LOG_ALARM(g_logger[L_MONITER], "network some time put the alarm  msg ...");        }        SleepMillisecond(rand()%30);    }}//////////////////////////////////////////////////////////////////////////   int main(int argc, char *argv[]){    //add and configure logger    ILog4zManager::GetInstance()->ConfigMainLogger("", "L_MAIN");    g_logger[L_MAIN] = ILog4zManager::GetInstance()->GetMainLogger();    g_logger[L_MYSQL] = ILog4zManager::GetInstance()->DynamicCreateLogger("", "L_MYSQL");    g_logger[L_NET] = ILog4zManager::GetInstance()->DynamicCreateLogger("", "L_NET");          ILog4zManager::GetInstance()->ConfigFromFile("config.xml");    g_logger[L_MONITER] = ILog4zManager::GetInstance()->GetLoggerFromName("L_MONITER");           //start log4z    ILog4zManager::GetInstance()->Start();       //create thread, it create the virtual module .    CreateThread(&MysqlModuleTrace);    CreateThread(&NetworkModuleTrace);    CreateThread(&MoniterModuleTrace);       //virtual the main logic in project.    while(1)    {           LOGI("main thread trace msg ...");        SleepMillisecond(rand()%3000);    }       printf("press anykey to exit.");    getchar();    return 0;}      //////////////////////////////////////////////////////////////////////////void SleepMillisecond(unsigned int ms){#ifdef WIN32    ::Sleep(ms);#else    usleep(1000*ms);#endif}         //#ifdef WIN32 static unsigned int WINAPI  ThreadProc(LPVOID lpParam){    ((void(*)())(lpParam))();    _endthreadex(0);    return 0;}#elsestatic void * ThreadProc(void * pParam){    ((void(*)())(pParam))();    return NULL;}#endif   bool CreateThread(void(*run)()){#ifdef WIN32    unsigned long long ret = _beginthreadex(NULL, 0, ThreadProc,(void*) run, 0, NULL);       if (ret == -1 || ret == 1  || ret == 0)    {        return false;    }#else    pthread_t ptid = 0;    int ret = pthread_create(&ptid, NULL, ThreadProc, (void*)run);    if (ret != 0)    {        return false;    }#endif    return true;}