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libzmq/src/fq.hpp
Pieter Hintjens f0f16505e5 Removed corporate advertisements from source file headers
Copyrights had become ads for Sustrik's corporate sponsors, going against the original
agreement to share copyrights with the community (that agreement was: one line stating
iMatix copyright + one reference to AUTHORS file). The proliferation of corporate ads
is also unfair to the many individual authors. I've removed ALL corporate title from
the source files so the copyright statements can now be centralized in AUTHORS and
source files can be properly updated on an annual basis.
2013-03-12 13:24:57 +01:00

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2.0 KiB
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/*
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 <http://www.gnu.org/licenses/>.
*/
#ifndef __ZMQ_FQ_HPP_INCLUDED__
#define __ZMQ_FQ_HPP_INCLUDED__
#include "array.hpp"
#include "pipe.hpp"
#include "msg.hpp"
namespace zmq
{
// Class manages a set of inbound pipes. On receive it performs fair
// queueing so that senders gone berserk won't cause denial of
// service for decent senders.
class fq_t
{
public:
fq_t ();
~fq_t ();
void attach (pipe_t *pipe_);
void activated (pipe_t *pipe_);
void terminated (pipe_t *pipe_);
int recv (msg_t *msg_);
int recvpipe (msg_t *msg_, pipe_t **pipe_);
bool has_in ();
private:
// Inbound pipes.
typedef array_t <pipe_t, 1> pipes_t;
pipes_t pipes;
// Number of active pipes. All the active pipes are located at the
// beginning of the pipes array.
pipes_t::size_type active;
// Index of the next bound pipe to read a message from.
pipes_t::size_type current;
// If true, part of a multipart message was already received, but
// there are following parts still waiting in the current pipe.
bool more;
fq_t (const fq_t&);
const fq_t &operator = (const fq_t&);
};
}
#endif