namespace libt2n
{
-socket_client_connection::socket_client_connection(const std::string& _server, int _port, int _max_retries)
+socket_client_connection::socket_client_connection(int _port, const std::string& _server,
+ long long _connect_timeout_usec, int _max_retries)
: client_connection(), socket_handler(0,tcp_s)
{
max_retries=_max_retries;
+ connect_timeout_usec=_connect_timeout_usec;
server=_server;
port=_port;
- connect();
+ tcp_connect(max_retries);
}
-socket_client_connection::socket_client_connection(const std::string& _path, int _max_retries)
+socket_client_connection::socket_client_connection(const std::string& _path,
+ long long _connect_timeout_usec, int _max_retries)
: client_connection(), socket_handler(0,unix_s)
{
max_retries=_max_retries;
+ connect_timeout_usec=_connect_timeout_usec;
path=_path;
- connect();
+ unix_connect(max_retries);
}
-void socket_client_connection::connect()
+void socket_client_connection::tcp_connect(int max_retries)
{
- if (get_type() == unix_s)
+ struct sockaddr_in sock_addr;
+
+ sock_addr.sin_family = AF_INET;
+ sock_addr.sin_port = htons(port);
+
+ // find the target ip
+ if (inet_aton(server.c_str(),&sock_addr.sin_addr)==0)
{
- struct sockaddr_un unix_addr;
+ struct hostent *server_hent;
+ server_hent=gethostbyname(server.c_str());
+ if (server_hent == NULL)
+ throw t2n_connect_error(string("can't find server ")+server);
- unix_addr.sun_family = AF_UNIX;
- strcpy (unix_addr.sun_path, path.c_str());
+ memcpy(&sock_addr.sin_addr,server_hent->h_addr_list[0],sizeof(sock_addr.sin_addr));
+ }
- sock = socket(PF_UNIX, SOCK_STREAM, 0);
- if (!sock)
- throw t2n_connect_error(string("socket() error: ")+strerror(errno));
+ sock = socket(PF_INET, SOCK_STREAM, 0);
+ if (!sock)
+ throw t2n_connect_error(string("socket() error: ")+strerror(errno));
- if (::connect(sock,(struct sockaddr *) &unix_addr, sizeof(unix_addr)))
- throw t2n_connect_error(string("connect() error: ")+strerror(errno));
+ try
+ {
+ connect_with_timeout((struct sockaddr *) &sock_addr,sizeof(sock_addr));
}
- else if (get_type() == tcp_s)
+ catch (t2n_connect_error &e)
{
- struct sockaddr_in sock_addr;
+ // recurse if retries left
+ if (max_retries > 0)
+ tcp_connect(max_retries-1);
+ }
- sock_addr.sin_family = AF_INET;
- sock_addr.sin_port = htons(port);
+ do_callbacks(new_connection);
+}
- // find the target ip
- if (inet_aton(server.c_str(),&sock_addr.sin_addr)==0)
- {
- struct hostent *server_hent;
- server_hent=gethostbyname(server.c_str());
- if (server_hent == NULL)
- throw t2n_connect_error(string("can't find server ")+server);
+void socket_client_connection::unix_connect(int max_retries)
+{
+ struct sockaddr_un unix_addr;
- memcpy(&sock_addr.sin_addr,server_hent->h_addr_list[0],sizeof(sock_addr.sin_addr));
- }
+ unix_addr.sun_family = AF_UNIX;
+ strcpy (unix_addr.sun_path, path.c_str());
- sock = socket(PF_INET, SOCK_STREAM, 0);
- if (!sock)
- throw t2n_connect_error(string("socket() error: ")+strerror(errno));
+ sock = socket(PF_UNIX, SOCK_STREAM, 0);
+ if (!sock)
+ throw t2n_connect_error(string("socket() error: ")+strerror(errno));
- if (::connect(sock,(struct sockaddr *) &sock_addr, sizeof(sock_addr)))
- throw t2n_connect_error(string("connect() error: ")+strerror(errno));
+ try
+ {
+ connect_with_timeout((struct sockaddr *) &unix_addr, sizeof(unix_addr));
}
- else
- throw t2n_connect_error(string("invalid connection type"));
+ catch (t2n_connect_error &e)
+ {
+ // recurse if retries left
+ if (max_retries > 0)
+ tcp_connect(max_retries-1);
+ }
+
+ do_callbacks(new_connection);
+}
+void socket_client_connection::connect_with_timeout(struct sockaddr *sock_addr,unsigned int sockaddr_size)
+{
set_socket_options(sock);
+
+ int ret=::connect(sock,sock_addr, sockaddr_size);
+
+ if (ret < 0)
+ {
+ if (errno==EINPROGRESS)
+ {
+ /* set timeout */
+ struct timeval tval;
+ struct timeval *timeout_ptr;
+
+ if (connect_timeout_usec == -1)
+ timeout_ptr = NULL;
+ else
+ {
+ timeout_ptr = &tval;
+
+ // convert timeout from long long usec to int sec + int usec
+ tval.tv_sec = connect_timeout_usec / 1000000;
+ tval.tv_usec = connect_timeout_usec % 1000000;
+ }
+
+ fd_set connect_socket_set;
+ FD_ZERO(&connect_socket_set);
+ FD_SET(sock,&connect_socket_set);
+
+ int ret;
+ while ((ret=select(FD_SETSIZE, NULL, &connect_socket_set, NULL, timeout_ptr)) &&
+ ret < 0 && errno==EINTR);
+
+ if (ret < 0)
+ throw t2n_connect_error(string("connect() error (select): ")+strerror(errno));
+
+ socklen_t sopt=sizeof(int);
+ int valopt;
+ ret=getsockopt(sock, SOL_SOCKET, SO_ERROR, (void*)(&valopt), &sopt);
+ if (ret < 0 || valopt)
+ throw t2n_connect_error(string("connect() error (getsockopt): ")+strerror(errno));
+ }
+ else
+ throw t2n_connect_error(string("connect() error: ")+strerror(errno));
+ }
}
void socket_client_connection::close()