1 files changed, 105 insertions, 0 deletions
diff --git a/src/object.hpp b/src/object.hpp
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+++ b/src/object.hpp
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+/*
+    Copyright (c) 2007-2009 FastMQ Inc.
+
+    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 __ZS_OBJECT_HPP_INCLUDED__
+#define __ZS_OBJECT_HPP_INCLUDED__
+
+#include "stdint.hpp"
+
+namespace zs
+{
+
+    //  Base class for all objects that participate in inter-thread
+    //  communication.
+
+    class object_t
+    {
+    public:
+
+        object_t (class dispatcher_t *dispatcher_, int thread_slot_);
+        object_t (object_t *parent_);
+        ~object_t ();
+
+        int get_thread_slot ();
+        void process_command (struct command_t &cmd_);
+
+    protected:
+
+        //  Derived object can use following functions to interact with
+        //  global repositories. See dispatcher.hpp for function details.
+        int thread_slot_count ();
+        void create_pipe (class object_t *reader_parent_,
+            class object_t *writer_parent_, uint64_t hwm_, uint64_t lwm_,
+            class pipe_reader_t **reader_, class pipe_writer_t **writer_);
+        void destroy_pipe (class pipe_t *pipe_);
+        int register_inproc_endpoint (const char *endpoint_,
+            class session_t *session_);
+        class object_t *get_inproc_endpoint (const char *endpoint_);
+        void unregister_inproc_endpoints (class session_t *session_);
+        class io_thread_t *choose_io_thread (uint64_t taskset_);
+
+        //  Derived object can use these functions to send commands
+        //  to other objects.
+        void send_stop ();
+        void send_bind (object_t *destination_, class pipe_reader_t *reader_,
+            class session_t *peer_);
+        void send_head (object_t *destination_, uint64_t bytes_);
+        void send_tail (object_t *destination_, uint64_t bytes_);
+        void send_reg (object_t *destination_,
+            class simple_semaphore_t *smph_);
+        void send_reg_and_bind (object_t *destination_, class session_t *peer_,
+            bool flow_in_, bool flow_out_);
+        void send_unreg (object_t *destination_,
+            class simple_semaphore_t *smph_);
+        void send_engine (object_t *destination_, struct i_engine *engine_);
+        void send_terminate (object_t *destination_);
+        void send_terminate_ack (object_t *destination_);
+
+        //  These handlers can be overloaded by the derived objects. They are
+        //  called when command arrives from another thread.
+        virtual void process_stop ();
+        virtual void process_bind (class pipe_reader_t *reader_,
+            class session_t *peer_);
+        virtual void process_head (uint64_t bytes_);
+        virtual void process_tail (uint64_t bytes_);
+        virtual void process_reg (class simple_semaphore_t *smph_);
+        virtual void process_reg_and_bind (class session_t *peer_,
+            bool flow_in_, bool flow_out_);
+        virtual void process_unreg (class simple_semaphore_t *smph_);
+        virtual void process_engine (struct i_engine *engine_);
+        virtual void process_terminate ();
+        virtual void process_terminate_ack ();
+
+        //  Pointer to the root of the infrastructure.
+        class dispatcher_t *dispatcher;
+
+        //  Slot ID of the thread the object belongs to.
+        int thread_slot;
+
+    private:
+
+        void send_command (command_t &cmd_);
+
+        object_t (const object_t&);
+        void operator = (const object_t&);
+    };
+
+}
+
+#endif