Initial ZMQ bindings.

vendor/ZMQ/src/command.hpp

@@ -0,0 +1,225 @@
+/*
+    Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
+
+    This file is part of libzmq, the ZeroMQ core engine in C++.
+
+    libzmq is free software; you can redistribute it and/or modify it under
+    the terms of the GNU Lesser General Public License (LGPL) as published
+    by the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    As a special exception, the Contributors give you permission to link
+    this library with independent modules to produce an executable,
+    regardless of the license terms of these independent modules, and to
+    copy and distribute the resulting executable under terms of your choice,
+    provided that you also meet, for each linked independent module, the
+    terms and conditions of the license of that module. An independent
+    module is a module which is not derived from or based on this library.
+    If you modify this library, you must extend this exception to your
+    version of the library.
+
+    libzmq 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_COMMAND_HPP_INCLUDED__
+#define __ZMQ_COMMAND_HPP_INCLUDED__
+
+#include <string>
+#include "stdint.hpp"
+#include "endpoint.hpp"
+
+namespace zmq
+{
+class object_t;
+class own_t;
+struct i_engine;
+class pipe_t;
+class socket_base_t;
+
+//  This structure defines the commands that can be sent between threads.
+
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable : 4324) // C4324: alignment padding warnings
+__declspec(align (64))
+#endif
+  struct command_t
+{
+    //  Object to process the command.
+    zmq::object_t *destination;
+
+    enum type_t
+    {
+        stop,
+        plug,
+        own,
+        attach,
+        bind,
+        activate_read,
+        activate_write,
+        hiccup,
+        pipe_term,
+        pipe_term_ack,
+        pipe_hwm,
+        term_req,
+        term,
+        term_ack,
+        term_endpoint,
+        reap,
+        reaped,
+        inproc_connected,
+        conn_failed,
+        pipe_peer_stats,
+        pipe_stats_publish,
+        done
+    } type;
+
+    union args_t
+    {
+        //  Sent to I/O thread to let it know that it should
+        //  terminate itself.
+        struct
+        {
+        } stop;
+
+        //  Sent to I/O object to make it register with its I/O thread.
+        struct
+        {
+        } plug;
+
+        //  Sent to socket to let it know about the newly created object.
+        struct
+        {
+            zmq::own_t *object;
+        } own;
+
+        //  Attach the engine to the session. If engine is NULL, it informs
+        //  session that the connection have failed.
+        struct
+        {
+            struct i_engine *engine;
+        } attach;
+
+        //  Sent from session to socket to establish pipe(s) between them.
+        //  Caller have used inc_seqnum beforehand sending the command.
+        struct
+        {
+            zmq::pipe_t *pipe;
+        } bind;
+
+        //  Sent by pipe writer to inform dormant pipe reader that there
+        //  are messages in the pipe.
+        struct
+        {
+        } activate_read;
+
+        //  Sent by pipe reader to inform pipe writer about how many
+        //  messages it has read so far.
+        struct
+        {
+            uint64_t msgs_read;
+        } activate_write;
+
+        //  Sent by pipe reader to writer after creating a new inpipe.
+        //  The parameter is actually of type pipe_t::upipe_t, however,
+        //  its definition is private so we'll have to do with void*.
+        struct
+        {
+            void *pipe;
+        } hiccup;
+
+        //  Sent by pipe reader to pipe writer to ask it to terminate
+        //  its end of the pipe.
+        struct
+        {
+        } pipe_term;
+
+        //  Pipe writer acknowledges pipe_term command.
+        struct
+        {
+        } pipe_term_ack;
+
+        //  Sent by one of pipe to another part for modify hwm
+        struct
+        {
+            int inhwm;
+            int outhwm;
+        } pipe_hwm;
+
+        //  Sent by I/O object ot the socket to request the shutdown of
+        //  the I/O object.
+        struct
+        {
+            zmq::own_t *object;
+        } term_req;
+
+        //  Sent by socket to I/O object to start its shutdown.
+        struct
+        {
+            int linger;
+        } term;
+
+        //  Sent by I/O object to the socket to acknowledge it has
+        //  shut down.
+        struct
+        {
+        } term_ack;
+
+        //  Sent by session_base (I/O thread) to socket (application thread)
+        //  to ask to disconnect the endpoint.
+        struct
+        {
+            std::string *endpoint;
+        } term_endpoint;
+
+        //  Transfers the ownership of the closed socket
+        //  to the reaper thread.
+        struct
+        {
+            zmq::socket_base_t *socket;
+        } reap;
+
+        //  Closed socket notifies the reaper that it's already deallocated.
+        struct
+        {
+        } reaped;
+
+        //  Send application-side pipe count and ask to send monitor event
+        struct
+        {
+            uint64_t queue_count;
+            zmq::own_t *socket_base;
+            endpoint_uri_pair_t *endpoint_pair;
+        } pipe_peer_stats;
+
+        //  Collate application thread and I/O thread pipe counts and endpoints
+        //  and send as event
+        struct
+        {
+            uint64_t outbound_queue_count;
+            uint64_t inbound_queue_count;
+            endpoint_uri_pair_t *endpoint_pair;
+        } pipe_stats_publish;
+
+        //  Sent by reaper thread to the term thread when all the sockets
+        //  are successfully deallocated.
+        struct
+        {
+        } done;
+
+    } args;
+#ifdef _MSC_VER
+};
+#pragma warning(pop)
+#else
+} __attribute__ ((aligned (64)));
+#endif
+}
+
+#endif