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authorMartin Lucina <mato@kotelna.sk>2011-03-28 10:39:51 +0200
committerMartin Lucina <martin@lucina.net>2012-01-23 08:53:37 +0100
commit3e20cb1b8a2b1ca222011df37334e5f4f88dd565 (patch)
tree4a753775186bc7f583f1ceb3f9aa675b6f110596 /src/dist.hpp
parent3f0085ddbef1a44b6bb7a0b23af497d56e0025fa (diff)
parente645fc2693acc796304498909786b7b47005b429 (diff)
Imported Debian patch 2.1.3-1debian/2.1.3-1
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+/*
+ Copyright (c) 2007-2011 iMatix Corporation
+ Copyright (c) 2007-2011 Other 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_DIST_HPP_INCLUDED__
+#define __ZMQ_DIST_HPP_INCLUDED__
+
+#include <vector>
+
+#include "array.hpp"
+#include "pipe.hpp"
+
+namespace zmq
+{
+
+ // Class manages a set of outbound pipes. It sends each messages to
+ // each of them.
+ class dist_t : public i_writer_events
+ {
+ public:
+
+ dist_t (class own_t *sink_);
+ ~dist_t ();
+
+ void attach (writer_t *pipe_);
+ void terminate ();
+ int send (zmq_msg_t *msg_, int flags_);
+ bool has_out ();
+
+ // i_writer_events interface implementation.
+ void activated (writer_t *pipe_);
+ void terminated (writer_t *pipe_);
+
+ private:
+
+ // Write the message to the pipe. Make the pipe inactive if writing
+ // fails. In such a case false is returned.
+ bool write (class writer_t *pipe_, zmq_msg_t *msg_);
+
+ // Put the message to all active pipes.
+ void distribute (zmq_msg_t *msg_, int flags_);
+
+ // Plug in all the delayed pipes.
+ void clear_new_pipes ();
+
+ // List of outbound pipes.
+ typedef array_t <class writer_t> pipes_t;
+ pipes_t pipes;
+
+ // List of new pipes that were not yet inserted into 'pipes' list.
+ // These pipes are moves to 'pipes' list once the current multipart
+ // message is fully sent. This way we avoid sending incomplete messages
+ // to peers.
+ typedef std::vector <class writer_t*> new_pipes_t;
+ new_pipes_t new_pipes;
+
+ // Number of active pipes. All the active pipes are located at the
+ // beginning of the pipes array.
+ pipes_t::size_type active;
+
+ // True if last we are in the middle of a multipart message.
+ bool more;
+
+ // Object to send events to.
+ class own_t *sink;
+
+ // If true, termination process is already underway.
+ bool terminating;
+
+ dist_t (const dist_t&);
+ const dist_t &operator = (const dist_t&);
+ };
+
+}
+
+#endif