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82 lines
2.3 KiB
C++
82 lines
2.3 KiB
C++
/*
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Copyright (c) 2007-2010 iMatix Corporation
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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 Lesser GNU 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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Lesser GNU General Public License for more details.
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You should have received a copy of the Lesser GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ZMQ_SUB_HPP_INCLUDED__
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#define __ZMQ_SUB_HPP_INCLUDED__
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#include "../include/zmq.h"
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#include "prefix_tree.hpp"
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#include "socket_base.hpp"
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#include "i_terminate_events.hpp"
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#include "fq.hpp"
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namespace zmq
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{
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class sub_t : public socket_base_t, public i_terminate_events
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{
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public:
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sub_t (class ctx_t *parent_, uint32_t slot_);
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~sub_t ();
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protected:
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// Overloads of functions from socket_base_t.
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void xattach_pipes (class reader_t *inpipe_, class writer_t *outpipe_,
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const blob_t &peer_identity_);
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int xsetsockopt (int option_, const void *optval_, size_t optvallen_);
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int xrecv (zmq_msg_t *msg_, int flags_);
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bool xhas_in ();
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private:
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// i_terminate_events interface implementation.
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void terminated ();
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// Hook into the termination process.
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void process_term ();
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// Check whether the message matches at least one subscription.
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bool match (zmq_msg_t *msg_);
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// Fair queueing object for inbound pipes.
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fq_t fq;
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// The repository of subscriptions.
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prefix_tree_t subscriptions;
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// If true, 'message' contains a matching message to return on the
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// next recv call.
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bool has_message;
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zmq_msg_t message;
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// If true, part of a multipart message was already received, but
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// there are following parts still waiting.
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bool more;
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sub_t (const sub_t&);
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void operator = (const sub_t&);
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};
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}
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#endif
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