int create_service_socket(){
int listenfd, connfd, newfd;
struct sockaddr_in servaddr;
struct sockaddr_in inaddr;
char buffer[2048];
int rc;
int done;
int receiveLen;
listenfd = socket(AF_INET, SOCK_STREAM, 0);
bzero(&servaddr, sizeof(servaddr));
servaddr.sin_family = AF_INET;
servaddr.sin_addr.S_un.S_addr = htonl(INADDR_ANY);
servaddr.sin_port = htons(PORT);
rc = bind(listenfd, (struct sockaddr *)&servaddr), sizeof(servaddr));
if(rc != 0){
printf("after bind, rc = [%d] \n", rc);
return rc;
}
rc = listen(listenfd, MAX_CONNECT);
if(rc == -1){
printf("listen error %d \n", errno);
perror("listern error msg :");
return 1;
}
while(!done){
printf("waiting for connection \n");
newfd = accept(listenfd, &inaddr, sizeof(struct sockaddr_in));
if(newfd < 0){
printf("accept error : %d \n"m, errno);
perror("accept error : ");
return;
}
memset(buffer, 0, sizeof(buffer));
if((receiveLen = recv(newfd, buffer, 2048, 0)) < 0){
printf("recv error : %d \n"m, errno);
perror("recv error : ");
return;
}
printf("recv data : buffer = %s\n", buffer);
handleReceiveData(buffer);
if(strstr(buffer, "exit") != NULL){
done = 1;
}
close(newfd);
}
}
void read() {
struct timeval timeout;
timeout.tv_sec = 1;
timeout.tv_usec = 0;
std::vector<int> removeConnections;
while (true) {
FD_ZERO(&m_ConnSet);
int max = 0;
for(const auto& kvp : m_mapConnections) {
if (kvp.second->m_fReseiveHandler != nullptr) {
FD_SET(kvp.second->m_pSocket->m_iSocketHandle, &m_ConnSet);
max = std::max(kvp.second->m_pSocket->m_iSocketHandle, max);
} else {
removeConnections.push_back(kvp.first);
}
}
int h = ::select(max + 1, &m_ConnSet, NULL, NULL, &timeout);
switch (h) {
case -1:
//clear set
continue;
case 0:
//select timeout
for (const auto &v : removeConnections) {
auto con = m_mapConnections[v];
m_mapConnections.erase(v);
delete con;
}
removeConnections.clear();
continue;
default:
//read
handleReceiveData();
for (const auto &v : removeConnections) {
auto con = m_mapConnections[v];
m_mapConnections.erase(v);
delete con;
}
removeConnections.clear();
continue;
}
}
}
