metartc5_jz源码阅读-main.c

#include 
#include 
#include 
#include 
#include 
#include 



#include 
//声明一个Timer
YangCTimer* m_5stimer=NULL;
int g_waitState=0;

//声明一个互斥锁
pthread_mutex_t g_lock ;

//声明一个条件锁
pthread_cond_t	g_cond ;

//创建ctrl+c的回调函数，设置b_exit为1，signal通知条件锁在wait处继续执行，此处继续执行会退出程序运行。
static int32_t b_exit = 0;
static void ctrl_c_handler(int s){
    printf("\ncaught signal %d, exit.\n",s);
    b_exit = 1;
    pthread_mutex_lock(&g_lock);
    pthread_cond_signal(&g_cond);
    pthread_mutex_unlock(&g_lock);
}


static int32_t b_reload = 0;
static void reload_handler(int s){
    printf("\ncaught signal %d, reload.\n",s);
    b_reload = 1;
}

//timer会定时调用这个函数，函数每次会调用checkAlive方法检查ipc的session是否活跃。
void g_yang_main_doTask(int32_t taskId, void *user) {
	if (user == NULL)	return;

	YangIpc *ipc = (YangIpc*) user;
	if (taskId == 5) {
		ipc->checkAlive(&ipc->session);
	}
}

//创建timer定制执行方法。
void yang_initCtimer(YangIpc* ipc){
	m_5stimer = (YangCTimer*) calloc(1, sizeof(YangCTimer));
	yang_create_timer(m_5stimer, ipc, 5, 5000);
	m_5stimer->doTask = g_yang_main_doTask;

	yang_timer_start(m_5stimer);
}

//当结束程序时停止timer的执行。
void yang_stopCtimer(){
	yang_timer_stop(m_5stimer);
	yang_destroy_timer(m_5stimer);
	yang_free(m_5stimer);
}
int main(int argc, char* argv[])
{
    struct sigaction    sigIntHandler;
    struct sigaction    sigHupHandler;
    pthread_mutex_init(&g_lock,NULL);
    pthread_cond_init(&g_cond,NULL);


    //ctrl + c to exit
    sigIntHandler.sa_handler = ctrl_c_handler;
    sigemptyset(&sigIntHandler.sa_mask);
    sigIntHandler.sa_flags = 0;
    sigaction(SIGINT, &sigIntHandler, 0);

    //hup to reload
    sigHupHandler.sa_handler = reload_handler;
    sigemptyset(&sigHupHandler.sa_mask);
    sigHupHandler.sa_flags = 0;
    sigaction(SIGHUP, &sigHupHandler, 0);

    //创建并初始化ipc
    YangIpc ipc;
    memset(&ipc,0,sizeof(YangIpc));
    yang_create_ipc(&ipc);
    ipc.init(&ipc.session);
    ipc.start(&ipc.session);

    //初始化timer定制检测ipc的session是否活跃
    yang_initCtimer(&ipc);

    while(!b_exit)
    {
    	g_waitState=1;
        //在这里等待条件锁，直到用户Ctrl+c退出或其他地方设置b_exit为1
    	pthread_cond_wait(&g_cond, &g_lock);
    	g_waitState=0;
    	if (b_reload) {
    		//reload
    		b_reload = 0;

    	}
    }

    //退出程序前停止timer
   yang_stopCtimer();

   //退出程序前销毁ipc
   yang_destroy_ipc(&ipc);

    return 0;
}