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Copyright (c) 2007-2013 Contributors as noted in the AUTHORS file
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This file is part of 0MQ.
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0MQ is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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0MQ is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef __ZMQ_SESSION_BASE_HPP_INCLUDED__
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#define __ZMQ_SESSION_BASE_HPP_INCLUDED__
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#include "io_object.hpp"
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#include "socket_base.hpp"
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class session_base_t :
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// Create a session of the particular type.
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static session_base_t *create (zmq::io_thread_t *io_thread_,
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bool connect_, zmq::socket_base_t *socket_,
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const options_t &options_, const address_t *addr_);
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// To be used once only, when creating the session.
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void attach_pipe (zmq::pipe_t *pipe_);
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// Following functions are the interface exposed towards the engine.
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virtual void reset ();
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// i_pipe_events interface implementation.
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void read_activated (zmq::pipe_t *pipe_);
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void write_activated (zmq::pipe_t *pipe_);
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void hiccuped (zmq::pipe_t *pipe_);
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void pipe_terminated (zmq::pipe_t *pipe_);
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// Delivers a message. Returns 0 if successful; -1 otherwise.
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// The function takes ownership of the message.
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int push_msg (msg_t *msg_);
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// Fetches a message. Returns 0 if successful; -1 otherwise.
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// The caller is responsible for freeing the message when no
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int pull_msg (msg_t *msg_);
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// Receives message from ZAP socket.
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// Returns 0 on success; -1 otherwise.
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// The caller is responsible for freeing the message.
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int read_zap_msg (msg_t *msg_);
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// Sends message to ZAP socket.
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// Returns 0 on success; -1 otherwise.
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// The function takes ownership of the message.
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int write_zap_msg (msg_t *msg_);
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socket_base_t *get_socket ();
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session_base_t (zmq::io_thread_t *io_thread_, bool connect_,
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zmq::socket_base_t *socket_, const options_t &options_,
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const address_t *addr_);
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virtual ~session_base_t ();
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void start_connecting (bool wait_);
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// Handlers for incoming commands.
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void process_plug ();
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void process_attach (zmq::i_engine *engine_);
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void process_term (int linger_);
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// i_poll_events handlers.
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void timer_event (int id_);
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// Remove any half processed messages. Flush unflushed messages.
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// Call this function when engine disconnect to get rid of leftovers.
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// Call this function to move on with the delayed process_term.
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void proceed_with_term ();
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// If true, this session (re)connects to the peer. Otherwise, it's
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// a transient session created by the listener.
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// Pipe connecting the session to its socket.
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// Pipe used to exchange messages with ZAP socket.
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zmq::pipe_t *zap_pipe;
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// This set is added to with pipes we are disconnecting, but haven't yet completed
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std::set <pipe_t *> terminating_pipes;
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// This flag is true if the remainder of the message being processed
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// is still in the in pipe.
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// True if termination have been suspended to push the pending
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// messages to the network.
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// The protocol I/O engine connected to the session.
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zmq::i_engine *engine;
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// The socket the session belongs to.
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zmq::socket_base_t *socket;
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// I/O thread the session is living in. It will be used to plug in
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// the engines into the same thread.
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zmq::io_thread_t *io_thread;
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// ID of the linger timer
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enum {linger_timer_id = 0x20};
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// True is linger timer is running.
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bool has_linger_timer;
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// Protocol and address to use when connecting.
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const address_t *addr;
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session_base_t (const session_base_t&);
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const session_base_t &operator = (const session_base_t&);
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removed
.pc/protocol-downgrade-attack.patch/src/session_base.hpp
