:port(port),ip(ip),maxi(0),nready(0){

bzero(&sockaddr,sizeof(sockaddr));

sockaddr.sin_addr.s_addr = inet_addr(ip.c_str());

sockaddr.sin_port = htons(port);

sockaddr.sin_family = AF_INET;

for(int i = 0;i < OPEN_MAX;i++){

pollfds[i].fd = -1;

}

sock = socket(AF_INET,SOCK_STREAM,0);

if(sock == -1){

perror("control socket create error:");

return false;

}

pollfds[0].fd = sock;

pollfds[0].events = POLLIN;

int opt = 1;

setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (const void *)&opt, sizeof(opt));

if(bind(sock,(struct sockaddr*)&sockaddr,sizeof(sockaddr)) == -1){

perror("bind error:");

return false;

}

if(listen(sock,10) == -1){

perror("listen error:");

return false;

}

return true;

if(!this->BindListen()){

exit(-1);

}

while(1){

//cout << "start poll." << endl;

nready = poll(pollfds,maxi + 1,-1);

//cout << "end poll and nread is: " << nready << endl;

if(nready == -1){

perror("poll error:");

exit(-1);

}

if(pollfds[0].revents & POLLIN){

struct sockaddr_in cliaddr;

socklen_t cliaddrlen = sizeof(cliaddr);

bzero(&cliaddr,cliaddrlen);

int clisockfd;

//cout << "maxi is: " << maxi << " and max_con is: " << max_connections << endl;

if((clisockfd = accept(sock,(struct sockaddr*)&cliaddr,&cliaddrlen)) == -1) {

if(errno == EINTR){

continue;

}

else{

perror("accept error:");

exit(-1);

}

}

if(Accept(clisockfd, cliaddr) == 1){

int i = 0;

for(i = 1;i < OPEN_MAX;i++){

if(pollfds[i].fd < 0){

pollfds[i].fd = clisockfd;

pollfds[i].events = POLLIN;

break;

}

}

if(i == OPEN_MAX){

fprintf(stderr,"too many clients.\n");

exit(-1);

}

maxi = (i > maxi)?i:maxi;

}

else{

close(clisockfd);

}

if(--nready <= 0)

continue;

}

for(int i = 1;i <= maxi;i++){

if(pollfds[i].fd < 0)

continue;

//cout << "fd is " << pollfds[i].fd << " and revent is " << pollfds[i].revents << endl;

if(pollfds[i].revents & POLLIN){

Receive(pollfds[i].fd);

}

if(pollfds[i].revents & POLLNVAL){

pollfds[i].fd = -1;

}

}

}