Imported Upstream version 2.0.7.dfsgupstream/2.0.7.dfsg

1 files changed, 81 insertions, 0 deletions

diff --git a/src/sub.hpp b/src/sub.hpp
new file mode 100644
index 0000000..7b997c9
--- /dev/null
+++ b/src/sub.hpp
@@ -0,0 +1,81 @@
+/*
+    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 <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZMQ_SUB_HPP_INCLUDED__
+#define __ZMQ_SUB_HPP_INCLUDED__
+
+#include "../include/zmq.h"
+
+#include "prefix_tree.hpp"
+#include "socket_base.hpp"
+#include "fq.hpp"
+
+namespace zmq
+{
+
+    class sub_t : public socket_base_t
+    {
+    public:
+
+        sub_t (class app_thread_t *parent_);
+        ~sub_t ();
+
+    protected:
+
+        //  Overloads of functions from socket_base_t.
+        void xattach_pipes (class reader_t *inpipe_, class writer_t *outpipe_,
+            const blob_t &peer_identity_);
+        void xdetach_inpipe (class reader_t *pipe_);
+        void xdetach_outpipe (class writer_t *pipe_);
+        void xkill (class reader_t *pipe_);
+        void xrevive (class reader_t *pipe_);
+        void xrevive (class writer_t *pipe_);
+        int xsetsockopt (int option_, const void *optval_, size_t optvallen_);
+        int xsend (zmq_msg_t *msg_, int flags_);
+        int xrecv (zmq_msg_t *msg_, int flags_);
+        bool xhas_in ();
+        bool xhas_out ();
+
+    private:
+
+        //  Check whether the message matches at least one subscription.
+        bool match (zmq_msg_t *msg_);
+
+        //  Fair queueing object for inbound pipes.
+        fq_t fq;
+
+        //  The repository of subscriptions.
+        prefix_tree_t subscriptions;
+
+        //  If true, 'message' contains a matching message to return on the
+        //  next recv call.
+        bool has_message;
+        zmq_msg_t message;
+
+        //  If true, part of a multipart message was already received, but
+        //  there are following parts still waiting.
+        bool more;
+
+        sub_t (const sub_t&);
+        void operator = (const sub_t&);
+    };
+
+}
+
+#endif