void response_base< Timer >::handle_request( const json::object& request,
const boost::shared_ptr< response_interface >& self, const std::string& connection_name, bool last_message )
{
const json::string channel = extract_channel( request );
if ( channel == meta_handshake_channel )
{
handle_handshake( request, connection_name );
return;
}
const json::string client_id = check_client_id( request, channel );
if ( client_id.empty() )
return;
if ( !check_session( request, client_id, channel ) )
return;
if ( channel == meta_connect_channel )
{
handle_connect( request, self, last_message );
}
else if ( channel == meta_disconnect_channel )
{
handle_disconnect( request );
}
else if ( channel == meta_subscribe_channel )
{
handle_subscribe( request );
}
else if ( channel == meta_unsubscribe_channel )
{
handle_unsubscribe( request );
}
else
{
handle_publish( channel, request );
}
}
/**
* @brief 我们的工作线程所要做的主要工作
*/
void *thread_main(void *arg){
int connfd, listenfd, index;
socklen_t clilen, addrlen;
struct sockaddr cliaddr;
char client_id[CLIENT_ID_MAX];
index = LOWORD((int)arg);
listenfd = HIWORD((int)arg);
addrlen = sizeof(struct sockaddr);
#if DEBUG
LOGN("server", LOG_DEBUG, "thread %d starting listening %d", index, listenfd);
#endif
for(; ;){
clilen = addrlen;
Pthread_mutex_lock(&mlock);
#if DEBUG
LOGN("server", LOG_DEBUG, "pthread %d accepting...", index);
#endif
again:
if((connfd = accept(listenfd, &cliaddr, &clilen)) < 0){ /*accept 出错*/
#ifdef EPROTO /*协议出错*/
if(errno == EPROTO || errno == ECONNABORTED || errno == EINTR)
#else /*连接被终止*/
if(errno == ECONNABORTED || errno == EINTR)
#endif
goto again;
else{
LOGN("server", LOG_ERROR, "accept error");
exit(-1);
}
}
Pthread_mutex_unlock(&mlock);
/*判断客户终端的ID 是否合法，如果合法则将connfd 加入TCP 连接*/
read_client_id(connfd, client_id, CLIENT_ID_MAX, index);
if(false == check_client_id(client_id)){ /*不是合法ID*/
writen(connfd, "no", 3);
Close(connfd);
}else{ /*合法ID*/
int i;
for(i = 0; i < CONN_NUM_MAX; i++){ /*将其存入已连接套接字数组*/
if(client[i].socketfd < 0){ /*这里是初次将其添加进来，所以 理论上不用和其他地方互斥*/
client[i].socketfd = connfd;
break;
}
}
if(i == CONN_NUM_MAX){ /*超过服务器所能够承载的数目，告诉客户端稍后再试*/
LOGN("server", LOG_DEBUG, "too many clients");
client[i].socketfd = -1;
Close(connfd);
continue;
}
client[i].socketfd_status = 0;
bzero(client[i].client_id, CLIENT_ID_MAX);
strncpy(client[i].client_id, client_id, CLIENT_ID_MAX);
FD_SET(connfd, &allset); /*将其添加进select监听的套接字*/
client[i].Q = Cqueue_init(CQUEUE_SIZE); /*初始化循环队列*/
writen(connfd, "ok", 3);
if(connfd > maxfd)
maxfd = connfd;
if(i > maxi)
maxi = i;
}
}
}
