论坛徽章:: 0

电梯直达

1楼 [收藏(0)] [报告]

发表于 2006-07-13 11:16 |只看该作者 |倒序浏览

我打算实现通过select 实现a与c不信号时，三机重启。而现在是三机自动重启，问题在那我不清楚？
以下为：程序b
fd_set  connect_sock_set;

struct timeval connect_sock_tv;

FD_ZERO(&connect_sock_set);
FD_SET(s2,&connect_sock_set);

   connect_sock_tv.tv_sec = 30;
   connect_sock_tv.tv_usec = 0;

    a=select(s2+1,&connect_sock_set, NULL, NULL, &connect_sock_tv);

   if(a==0){

        printf("return 0 in checkouter() \n");
        return 0;
      }
      if(a<0){
        printf("select error \n");
        exit(-1);
      }

      alen=sizeof(struct sockaddr);
   if ( (s3=accept(s2, (struct sockaddr *)&server, &alen)) < 0) {
   printf( " accept outer and find whether to reboot failed\n, %s\n",strerror(errno));
   close(s3);
   close(s2);
exit(1);
}

printf("accept from outer in checkouter() is right \n");

i=recv(s3,buf,sizeof(buf),0);
if(i<0){
        printf("recv s3 from outer failed\n, %s\n",strerror(errno));
        close(s3);
        close(s2);
exit(1);
   }

   printf("recv data in checkouter() from outer is right!\n");

      if(!strncmp(buf,message_str,4)){
        printf("strncmp in checkouter() \n");
        close(s3);
        close(s2);
              return 1;
   }

   printf("halting infomation in checkout() to outer have been accepted \n");

      close(s3);
      printf("close s3 \n");
      return 0;

[ 本帖最后由 zlh2407 于 2006-7-13 11:24 编辑 ]

文库|博客

zlh2407

白手起家

论坛徽章:: 0

2楼 [报告]

发表于 2006-07-13 11:19 |只看该作者

回复 1楼 zlh2407 的帖子

a程序：
if ( (s6=accept(s7, (struct sockaddr *)&cad, &alen)) < 0) {
printf(" accept failed\n,%s\n",strerror(errno));
close(s6);
close(s7);
               exit(1);
}

printf("accept from outer \n");

FD_ZERO(&connect_sock_set);
FD_SET(s7,&connect_sock_set);

   connect_sock_tv.tv_sec = 30;
   connect_sock_tv.tv_usec = 0;

    i=select(s7+1,&connect_sock_set, &wfd_set, &efd_set, &connect_sock_tv);

   if(i==0){
   printf("s6 timeoff! \n");
   close(s7);
   return (-1);
   }
   printf("select is made !\n");

   if(i<0){
   printf("select error !\n");
   exit(-1);
   }

   if(FD_ISSET(STDIN,&connect_sock_set)){
   fgets(send_str,MAXDATASIZE,STDIN);
   send_str[strlen(send_str)-1]='\0';
   send(s6,send_str,strlen(send_str),0);
   }

   if(FD_ISSET(s6,&connect_sock_set)){
   j=recv(s6, buf, BUF_SIZE, 0);
   if( j==0){
   printf("recv null from outer  \n,%s\n",strerror(errno));
   close(s6);
   close(s7);
            return -1;
   }
   }

   if(FD_ISSET(s6,&connect_sock_set)){
   close(s6);
   exit(0);
   }

   close(s6);
   printf("close s6 \n");
   return 0;

实战分享：从技术角度谈机器学习入门| 【大话IT】RadonDB低门槛向MySQL集群下战书 | ChinaUnix打赏功能已上线！ | 新一代分布式关系型数据库RadonDB知多少？

zlh2407

白手起家

论坛徽章:: 0

3楼 [报告]

发表于 2006-07-13 11:19 |只看该作者

回复 2楼 zlh2407 的帖子

c程序：
if (connect(s3, (struct sockaddr *)&myaddr, sizeof(myaddr)) < 0) {
printf("connect s3 to inner failed \n,%s\n",strerror(errno));
close(s3);
return -1;
}

printf("connect to inner in check() is right!\n");

n = send(s3, message_str,strlen(message_str), 0);
if (n <0 ){
printf("send to inner failed \n,%s\n",strerror(errno));
   close(s3);
return -1;

}
printf("send  in check is over \n");

close(s3);
    printf("close s3 \n");
    return 0;