1 files changed, 94 insertions, 0 deletions
diff --git a/src/xpub.hpp b/src/xpub.hpp
new file mode 100644
index 0000000..362425a
--- /dev/null
+++ b/src/xpub.hpp
@@ -0,0 +1,94 @@
+/*
+    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_XPUB_HPP_INCLUDED__
+#define __ZMQ_XPUB_HPP_INCLUDED__
+
+#include <deque>
+#include <string>
+
+#include "socket_base.hpp"
+#include "session_base.hpp"
+#include "mtrie.hpp"
+#include "array.hpp"
+#include "dist.hpp"
+
+namespace zmq
+{
+
+    class ctx_t;
+    class msg_t;
+    class pipe_t;
+    class io_thread_t;
+
+    class xpub_t :
+        public socket_base_t
+    {
+    public:
+
+        xpub_t (zmq::ctx_t *parent_, uint32_t tid_, int sid_);
+        ~xpub_t ();
+
+        //  Implementations of virtual functions from socket_base_t.
+        void xattach_pipe (zmq::pipe_t *pipe_, bool subscribe_to_all_ = false);
+        int xsend (zmq::msg_t *msg_);
+        bool xhas_out ();
+        int xrecv (zmq::msg_t *msg_);
+        bool xhas_in ();
+        void xread_activated (zmq::pipe_t *pipe_);
+        void xwrite_activated (zmq::pipe_t *pipe_);
+        int xsetsockopt (int option_, const void *optval_, size_t optvallen_);
+        void xpipe_terminated (zmq::pipe_t *pipe_);
+
+    private:
+
+        //  Function to be applied to the trie to send all the subsciptions
+        //  upstream.
+        static void send_unsubscription (unsigned char *data_, size_t size_,
+            void *arg_);
+
+        //  Function to be applied to each matching pipes.
+        static void mark_as_matching (zmq::pipe_t *pipe_, void *arg_);
+
+        //  List of all subscriptions mapped to corresponding pipes.
+        mtrie_t subscriptions;
+
+        //  Distributor of messages holding the list of outbound pipes.
+        dist_t dist;
+
+        // If true, send all subscription messages upstream, not just
+        // unique ones
+        bool verbose;
+
+        //  True if we are in the middle of sending a multi-part message.
+        bool more;
+
+        //  List of pending (un)subscriptions, ie. those that were already
+        //  applied to the trie, but not yet received by the user.
+        typedef std::basic_string <unsigned char> blob_t;
+        std::deque <blob_t> pending_data;
+        std::deque <unsigned char> pending_flags;
+
+        xpub_t (const xpub_t&);
+        const xpub_t &operator = (const xpub_t&);
+    };
+
+}
+
+#endif