From 597cc5edd624525563e6549dc0057eca2a51c81d Mon Sep 17 00:00:00 2001 From: Micah Anderson Date: Tue, 11 Nov 2014 13:30:46 -0500 Subject: upgrade to new version --- src/tcp_connecter.hpp | 121 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 121 insertions(+) create mode 100644 src/tcp_connecter.hpp (limited to 'src/tcp_connecter.hpp') diff --git a/src/tcp_connecter.hpp b/src/tcp_connecter.hpp new file mode 100644 index 0000000..5de3a48 --- /dev/null +++ b/src/tcp_connecter.hpp @@ -0,0 +1,121 @@ +/* + Copyright (c) 2007-2013 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 . +*/ + +#ifndef __TCP_CONNECTER_HPP_INCLUDED__ +#define __TCP_CONNECTER_HPP_INCLUDED__ + +#include "fd.hpp" +#include "own.hpp" +#include "stdint.hpp" +#include "io_object.hpp" +#include "../include/zmq.h" + +namespace zmq +{ + + class io_thread_t; + class session_base_t; + struct address_t; + + class tcp_connecter_t : public own_t, public io_object_t + { + public: + + // If 'delayed_start' is true connecter first waits for a while, + // then starts connection process. + tcp_connecter_t (zmq::io_thread_t *io_thread_, + zmq::session_base_t *session_, const options_t &options_, + const address_t *addr_, bool delayed_start_); + ~tcp_connecter_t (); + + private: + + // ID of the timer used to delay the reconnection. + enum {reconnect_timer_id = 1}; + + // Handlers for incoming commands. + void process_plug (); + void process_term (int linger_); + + // Handlers for I/O events. + void in_event (); + void out_event (); + void timer_event (int id_); + + // Internal function to start the actual connection establishment. + void start_connecting (); + + // Internal function to add a reconnect timer + void add_reconnect_timer(); + + // Internal function to return a reconnect backoff delay. + // Will modify the current_reconnect_ivl used for next call + // Returns the currently used interval + int get_new_reconnect_ivl (); + + // Open TCP connecting socket. Returns -1 in case of error, + // 0 if connect was successfull immediately. Returns -1 with + // EAGAIN errno if async connect was launched. + int open (); + + // Close the connecting socket. + void close (); + + // Get the file descriptor of newly created connection. Returns + // retired_fd if the connection was unsuccessfull. + fd_t connect (); + + // Address to connect to. Owned by session_base_t. + const address_t *addr; + + // Underlying socket. + fd_t s; + + // Handle corresponding to the listening socket. + handle_t handle; + + // If true file descriptor is registered with the poller and 'handle' + // contains valid value. + bool handle_valid; + + // If true, connecter is waiting a while before trying to connect. + const bool delayed_start; + + // True iff a timer has been started. + bool timer_started; + + // Reference to the session we belong to. + zmq::session_base_t *session; + + // Current reconnect ivl, updated for backoff strategy + int current_reconnect_ivl; + + // String representation of endpoint to connect to + std::string endpoint; + + // Socket + zmq::socket_base_t *socket; + + tcp_connecter_t (const tcp_connecter_t&); + const tcp_connecter_t &operator = (const tcp_connecter_t&); + }; + +} + +#endif -- cgit v1.2.3