pull.hpp 1.65 KB
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/*
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    Copyright (c) 2007-2014 Contributors as noted in the AUTHORS file
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    This file is part of 0MQ.

    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
    (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
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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_PULL_HPP_INCLUDED__
#define __ZMQ_PULL_HPP_INCLUDED__
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#include "socket_base.hpp"
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#include "session_base.hpp"
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#include "fq.hpp"
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namespace zmq
{

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    class ctx_t;
    class pipe_t;
    class msg_t;
    class io_thread_t;

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    class pull_t :
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        public socket_base_t
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    {
    public:

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        pull_t (zmq::ctx_t *parent_, uint32_t tid_, int sid_);
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        ~pull_t ();
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    protected:

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        //  Overrides of functions from socket_base_t.
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        void xattach_pipe (zmq::pipe_t *pipe_, bool subscribe_to_all_);
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        int xrecv (zmq::msg_t *msg_);
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        bool xhas_in ();
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        blob_t get_credential () const;
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        void xread_activated (zmq::pipe_t *pipe_);
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        void xpipe_terminated (zmq::pipe_t *pipe_);
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    private:

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        //  Fair queueing object for inbound pipes.
        fq_t fq;
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        pull_t (const pull_t&);
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        const pull_t &operator = (const pull_t&);
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    };

}

#endif