diff options
Diffstat (limited to 'src/vtcp_connecter.cpp')
| -rw-r--r-- | src/vtcp_connecter.cpp | 251 |
1 files changed, 0 insertions, 251 deletions
diff --git a/src/vtcp_connecter.cpp b/src/vtcp_connecter.cpp deleted file mode 100644 index 5dc147e..0000000 --- a/src/vtcp_connecter.cpp +++ /dev/null @@ -1,251 +0,0 @@ -/* - Copyright (c) 2007-2011 iMatix Corporation - Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file - - This file is part of 0MQ. - - 0MQ is free software; you can redistribute it and/or modify it under - the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - 0MQ is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. -*/ - -#include "vtcp_connecter.hpp" - -#if defined ZMQ_HAVE_VTCP - -#include <new> -#include <string> - -#include "stream_engine.hpp" -#include "io_thread.hpp" -#include "platform.hpp" -#include "random.hpp" -#include "likely.hpp" -#include "err.hpp" -#include "ip.hpp" - -#if defined ZMQ_HAVE_WINDOWS -#include "windows.hpp" -#else -#include <unistd.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <arpa/inet.h> -#include <netinet/tcp.h> -#include <netinet/in.h> -#include <netdb.h> -#include <fcntl.h> -#ifdef ZMQ_HAVE_OPENVMS -#include <ioctl.h> -#endif -#endif - -zmq::vtcp_connecter_t::vtcp_connecter_t (class io_thread_t *io_thread_, - class session_base_t *session_, const options_t &options_, - const char *address_, bool wait_) : - own_t (io_thread_, options_), - io_object_t (io_thread_), - s (retired_fd), - handle_valid (false), - wait (wait_), - session (session_), - current_reconnect_ivl(options.reconnect_ivl) -{ - subport = 0; - - int rc = set_address (address_); - zmq_assert (rc == 0); -} - -zmq::vtcp_connecter_t::~vtcp_connecter_t () -{ - if (wait) - cancel_timer (reconnect_timer_id); - if (handle_valid) - rm_fd (handle); - - if (s != retired_fd) - close (); -} - -int zmq::vtcp_connecter_t::set_address (const char *addr_) -{ - const char *delimiter = strrchr (addr_, '.'); - if (!delimiter) { - delimiter = strrchr (addr_, ':'); - if (!delimiter) { - errno = EINVAL; - return -1; - } - std::string addr_str (addr_, delimiter - addr_); - addr_str += ":9220"; - std::string subport_str (delimiter + 1); - subport = (vtcp_subport_t) atoi (subport_str.c_str ()); - int rc = address.resolve (addr_str.c_str (), false, true); - if (rc != 0) - return -1; - } - else { - std::string addr_str (addr_, delimiter - addr_); - std::string subport_str (delimiter + 1); - subport = (vtcp_subport_t) atoi (subport_str.c_str ()); - int rc = address.resolve (addr_str.c_str (), false, true); - if (rc != 0) - return -1; - } - - return 0; -} - -void zmq::vtcp_connecter_t::process_plug () -{ - if (wait) - add_reconnect_timer(); - else - start_connecting (); -} - -void zmq::vtcp_connecter_t::in_event () -{ - // We are not polling for incomming data, so we are actually called - // because of error here. However, we can get error on out event as well - // on some platforms, so we'll simply handle both events in the same way. - out_event (); -} - -void zmq::vtcp_connecter_t::out_event () -{ - fd_t fd = connect (); - rm_fd (handle); - handle_valid = false; - - // Handle the error condition by attempt to reconnect. - if (fd == retired_fd) { - close (); - wait = true; - add_reconnect_timer(); - return; - } - - // Create the engine object for this connection. - stream_engine_t *engine = new (std::nothrow) stream_engine_t (fd, options); - alloc_assert (engine); - - // Attach the engine to the corresponding session object. - send_attach (session, engine); - - // Shut the connecter down. - terminate (); -} - -void zmq::vtcp_connecter_t::timer_event (int id_) -{ - zmq_assert (id_ == reconnect_timer_id); - wait = false; - start_connecting (); -} - -void zmq::vtcp_connecter_t::start_connecting () -{ - // Open the connecting socket. - int rc = open (); - - // Handle error condition by eventual reconnect. - if (unlikely (rc != 0)) { - errno_assert (false); - wait = true; - add_reconnect_timer(); - return; - } - - // Connection establishment may be dealyed. Poll for its completion. - handle = add_fd (s); - handle_valid = true; - set_pollout (handle); -} - -void zmq::vtcp_connecter_t::add_reconnect_timer() -{ - add_timer (get_new_reconnect_ivl(), reconnect_timer_id); -} - -int zmq::vtcp_connecter_t::get_new_reconnect_ivl () -{ - // The new interval is the current interval + random value. - int this_interval = current_reconnect_ivl + - (generate_random () % options.reconnect_ivl); - - // Only change the current reconnect interval if the maximum reconnect - // interval was set and if it's larger than the reconnect interval. - if (options.reconnect_ivl_max > 0 && - options.reconnect_ivl_max > options.reconnect_ivl) { - - // Calculate the next interval - current_reconnect_ivl = current_reconnect_ivl * 2; - if(current_reconnect_ivl >= options.reconnect_ivl_max) { - current_reconnect_ivl = options.reconnect_ivl_max; - } - } - return this_interval; -} - -int zmq::vtcp_connecter_t::open () -{ - zmq_assert (s == retired_fd); - - // Start the connection procedure. - sockaddr_in *paddr = (sockaddr_in*) address.addr (); - s = vtcp_connect (paddr->sin_addr.s_addr, ntohs (paddr->sin_port)); - - // Connect was successfull immediately. - if (s != retired_fd) - return 0; - - // Asynchronous connect was launched. - if (errno == EINPROGRESS) { - errno = EAGAIN; - return -1; - } - - // Error occured. - return -1; -} - -zmq::fd_t zmq::vtcp_connecter_t::connect () -{ - int rc = vtcp_acceptc (s, subport); - if (rc != 0) { - int err = errno; - close (); - errno = err; - return retired_fd; - } - - tune_tcp_socket (s); - - fd_t result = s; - s = retired_fd; - return result; -} - -int zmq::vtcp_connecter_t::close () -{ - zmq_assert (s != retired_fd); - int rc = ::close (s); - if (rc != 0) - return -1; - s = retired_fd; - return 0; -} - -#endif - |