sys_check.h

linux下的人机对话编程

void sys_check()
{
   /* attach parent's shared memory */
      	ap=(struct area *)shmat(shmid, 0, 0);
      /* note: shmid is still set correctly */
	time_t timebuf;
        int len=strlen(ctime(&timebuf));
        char state[LEN]={};
        char *buf=malloc(sizeof(char)*(len+1));
        time(&timebuf);
        strncpy(buf,ctime(&timebuf),len+1);//save the current time in the buf
/*while(1)
{	
if(ap->flag_Sys_check==-1)
	{break;}
else
{*/
        /* set semaphore */
        buf_sem.sem_op=-1;
        semop(semid, (struct sembuf *) &buf_sem, 1);
        char info[500]={};
        char A_main_server[10]={};
        char B_main_server[10]={};
        char A_main_port[10]={};
        char B_main_port[10]={};
        char Asocket_info[800]={};
        char Bsocket_info[800]={};
//M machine check
        if(Mstate_check()==0)
                {
                ap->Mstate_gl=0;
                ap->Mhost_name_gl="127.0.0.1";
                strcpy(info,"\nMstate=0,Mhost_name=127.0.0.1,Reboot the programme or machine\n");
                //change the lpudated_log reboot M
                //update state_file
                exit(EXIT_FAILURE);
                }
        else
                {
                ap->Mstate_gl=1;
                ap->Mhost_name_gl="192.168.1.1";
                strcpy(info,"\n\nInformation explain:\nMhost_name=192.168.1.1,Mstate=1");
                }
//check A machine
                //get_state(STATE_FILE);
                Astate_check();
                strcpy(Asocket_info,check_error);
                strcat(info,"\nAhost_name=");
                strcat(info,ap->Ahost_name_gl);
                strcat(info,",Amain_server=");
                sprintf(A_main_server,"%d",ap->Amain_server_gl);
                strcat(info,A_main_server);
                strcat(info,",Amain_port=");
		sprintf(A_main_port,"%d",ap->Amain_port_gl);
                strcat(info,A_main_port);
                                                                                                    
//check B machine
                Bstate_check();
                strcpy(Bsocket_info,check_error);
                strcat(info,"\nBhost_name=");
                strcat(info,ap->Bhost_name_gl);
                strcat(info,",Bmain_server=");
                sprintf(B_main_server,"%d",ap->Bmain_server_gl);
                strcat(info,B_main_server);
                strcat(info,",Bmain_port=");
                sprintf(B_main_port,"%d",ap->Bmain_port_gl);
                strcat(info,B_main_port);
//further check for Main_cpu Main_hub
        if((ap->Astate_gl==1)&&(ap->Bstate_gl==1))
                {
                ap->Sys_main_cpu_gl=1;
                ap->Sys_main_hub_gl=1;
                strcat(info,"\nAstate=1,Bstate=1,Sys_main_cpu=1,Sys_main_hub=1\n");
                }
        else if((ap->Astate_gl==1)&&(ap->Bstate_gl==0))
                {
                ap->Sys_main_cpu_gl=1;
 		ap->Sys_main_hub_gl=1;
                strcat(info,"\nAstate=1,Bstate=0,Sys_main_cpu=1,Sys_main_hub=1\n");
                }
        else if((ap->Astate_gl==0)&&(ap->Bstate_gl==1))
                {
                ap->Sys_main_cpu_gl=2;
                ap->Sys_main_hub_gl=1;
                strcat(info,"\nAstate=0,Bstate=1,Sys_main_cpu=2,Sys_main_hub=1\n");
                }
        else    {
                strcat(info,"\nAstate=0,Bstate=0,Sys_main_cpu=0,Sys_main_hub=2\n");
                //Sys_main_hub_gl=2;
                }
/*
//further check for host_name
        if(Sys_main_hub_gl==2)
                {
                Ahost_name_gl="192.168.1.4";
                Bhost_name_gl="192.168.1.6";
                }*/
//get the check detail infomation
        strcat(info,"\nThe detail info:\n");
        strcat(info,Asocket_info);
        strcat(info,A_info);
        strcat(info,Bsocket_info);
        strcat(info,B_info);
//update the state file
/*	FILE *fp;
        fp=fopen("/zlm/state.log","w+");
        if(fp==NULL)
                {
                        printf("Error openning! for write_log()\n");
                }
        else    fputs(info,fp);
                fclose(fp);

*/
	/* clear semaphore */
        buf_sem.sem_op=1;
        semop(semid, (struct sembuf *) &buf_sem, 1);
       // sleep(1);
//  }//else
//}while(1)
//exit(0);//child normally exit
}//sys_check