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Copy pathCTransfer.cpp
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114 lines (98 loc) · 2.95 KB
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//
// Created by ghost on 16-4-26.
//
#include "CTransfer.h"
CTransfer::CTransfer(std::string ip,int port)
: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;
}
}
CTransfer::~CTransfer(){
close(sock);
}
bool CTransfer::BindListen() {
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;
}
void CTransfer::run(){
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;
}
}
}
}