From a15854bd92db69fcd0b4444fe1b8fe3610a7acf6 Mon Sep 17 00:00:00 2001 From: Martin Lucina Date: Mon, 23 Jan 2012 08:53:19 +0100 Subject: Imported Upstream version 2.0.7.dfsg --- src/fq.hpp | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 src/fq.hpp (limited to 'src/fq.hpp') diff --git a/src/fq.hpp b/src/fq.hpp new file mode 100644 index 0000000..5c699ee --- /dev/null +++ b/src/fq.hpp @@ -0,0 +1,68 @@ +/* + Copyright (c) 2007-2010 iMatix Corporation + + This file is part of 0MQ. + + 0MQ is free software; you can redistribute it and/or modify it under + the terms of the Lesser GNU 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 + Lesser GNU General Public License for more details. + + You should have received a copy of the Lesser GNU General Public License + along with this program. If not, see . +*/ + +#ifndef __ZMQ_FQ_HPP_INCLUDED__ +#define __ZMQ_FQ_HPP_INCLUDED__ + +#include "yarray.hpp" + +namespace zmq +{ + + // Class manages a set of inbound pipes. On receive it performs fair + // queueing (RFC970) so that senders gone berserk won't cause denial of + // service for decent senders. + class fq_t + { + public: + + fq_t (); + ~fq_t (); + + void attach (class reader_t *pipe_); + void detach (class reader_t *pipe_); + void kill (class reader_t *pipe_); + void revive (class reader_t *pipe_); + int recv (zmq_msg_t *msg_, int flags_); + bool has_in (); + + private: + + // Inbound pipes. + typedef yarray_t 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&); + void operator = (const fq_t&); + }; + +} + +#endif -- cgit v1.2.3