summaryrefslogtreecommitdiff
path: root/src/stream.hpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/stream.hpp')
-rw-r--r--src/stream.hpp97
1 files changed, 97 insertions, 0 deletions
diff --git a/src/stream.hpp b/src/stream.hpp
new file mode 100644
index 0000000..4117193
--- /dev/null
+++ b/src/stream.hpp
@@ -0,0 +1,97 @@
+/*
+ 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_STREAM_HPP_INCLUDED__
+#define __ZMQ_STREAM_HPP_INCLUDED__
+
+#include <map>
+
+#include "router.hpp"
+
+namespace zmq
+{
+
+ class ctx_t;
+ class pipe_t;
+
+ class stream_t :
+ public socket_base_t
+ {
+ public:
+
+ stream_t (zmq::ctx_t *parent_, uint32_t tid_, int sid);
+ ~stream_t ();
+
+ // Overloads of functions from socket_base_t.
+ void xattach_pipe (zmq::pipe_t *pipe_, bool subscribe_to_all_);
+ int xsend (zmq::msg_t *msg_);
+ int xrecv (zmq::msg_t *msg_);
+ bool xhas_in ();
+ bool xhas_out ();
+ void xread_activated (zmq::pipe_t *pipe_);
+ void xwrite_activated (zmq::pipe_t *pipe_);
+ void xpipe_terminated (zmq::pipe_t *pipe_);
+
+ private:
+ // Generate peer's id and update lookup map
+ void identify_peer (pipe_t *pipe_);
+
+ // Fair queueing object for inbound pipes.
+ fq_t fq;
+
+ // True iff there is a message held in the pre-fetch buffer.
+ bool prefetched;
+
+ // If true, the receiver got the message part with
+ // the peer's identity.
+ bool identity_sent;
+
+ // Holds the prefetched identity.
+ msg_t prefetched_id;
+
+ // Holds the prefetched message.
+ msg_t prefetched_msg;
+
+ struct outpipe_t
+ {
+ zmq::pipe_t *pipe;
+ bool active;
+ };
+
+ // Outbound pipes indexed by the peer IDs.
+ typedef std::map <blob_t, outpipe_t> outpipes_t;
+ outpipes_t outpipes;
+
+ // The pipe we are currently writing to.
+ zmq::pipe_t *current_out;
+
+ // If true, more outgoing message parts are expected.
+ bool more_out;
+
+ // Peer ID are generated. It's a simple increment and wrap-over
+ // algorithm. This value is the next ID to use (if not used already).
+ uint32_t next_peer_id;
+
+ stream_t (const stream_t&);
+ const stream_t &operator = (const stream_t&);
+ };
+
+}
+
+#endif