Add again zmq.hpp before tagging release 9.2.5 to be consistent with 9.2.5 version from SVN Sourceforge (#348)

Author: bourtemb

cppapi/client/zmq.hpp

@@ -0,0 +1,305 @@
+/*
+    Copyright (c) 2007-2011 iMatix Corporation
+    Copyright (c) 2007-2011 Other 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_HPP_INCLUDED__
+#define __ZMQ_HPP_INCLUDED__
+
+#include <zmq.h>
+
+#include <cassert>
+#include <cstring>
+#include <exception>
+
+namespace zmq
+{
+
+    typedef zmq_free_fn free_fn;
+    typedef zmq_pollitem_t pollitem_t;
+
+    class error_t : public std::exception
+    {
+    public:
+
+        error_t () : errnum (zmq_errno ()) {}
+
+        virtual const char *what () const throw ()
+        {
+            return zmq_strerror (errnum);
+        }
+
+        int num () const
+        {
+            return errnum;
+        }
+
+    private:
+
+        int errnum;
+    };
+
+    inline int poll (zmq_pollitem_t *items_, int nitems_, long timeout_ = -1)
+    {
+        int rc = zmq_poll (items_, nitems_, timeout_);
+        if (rc < 0)
+            throw error_t ();
+        return rc;
+    }
+
+    inline void version (int *major_, int *minor_, int *patch_)
+    {
+        zmq_version (major_, minor_, patch_);
+    }
+
+    class message_t
+    {
+        friend class socket_t;
+
+    public:
+
+        inline message_t ()
+        {
+            int rc = zmq_msg_init (&msg);
+            if (rc != 0)
+                throw error_t ();
+        }
+
+        inline message_t (size_t size_)
+        {
+            int rc = zmq_msg_init_size (&msg, size_);
+            if (rc != 0)
+                throw error_t ();
+        }
+
+        inline message_t (void *data_, size_t size_, free_fn *ffn_,
+            void *hint_ = NULL)
+        {
+            int rc = zmq_msg_init_data (&msg, data_, size_, ffn_, hint_);
+            if (rc != 0)
+                throw error_t ();
+        }
+
+        inline ~message_t ()
+        {
+            int rc = zmq_msg_close (&msg);
+            assert (rc == 0);
+        }
+
+        inline void rebuild ()
+        {
+            int rc = zmq_msg_close (&msg);
+            if (rc != 0)
+                throw error_t ();
+            rc = zmq_msg_init (&msg);
+            if (rc != 0)
+                throw error_t ();
+        }
+
+        inline void rebuild (size_t size_)
+        {
+            int rc = zmq_msg_close (&msg);
+            if (rc != 0)
+                throw error_t ();
+            rc = zmq_msg_init_size (&msg, size_);
+            if (rc != 0)
+                throw error_t ();
+        }
+
+        inline void rebuild (void *data_, size_t size_, free_fn *ffn_,
+            void *hint_ = NULL)
+        {
+            int rc = zmq_msg_close (&msg);
+            if (rc != 0)
+                throw error_t ();
+            rc = zmq_msg_init_data (&msg, data_, size_, ffn_, hint_);
+            if (rc != 0)
+                throw error_t ();
+        }
+
+        inline void move (message_t *msg_)
+        {
+            int rc = zmq_msg_move (&msg, &(msg_->msg));
+            if (rc != 0)
+                throw error_t ();
+        }
+
+        inline void copy (message_t *msg_)
+        {
+            int rc = zmq_msg_copy (&msg, &(msg_->msg));
+            if (rc != 0)
+                throw error_t ();
+        }
+
+        inline void *data ()
+        {
+            return zmq_msg_data (&msg);
+        }
+
+        inline size_t size ()
+        {
+            return zmq_msg_size (&msg);
+        }
+
+    private:
+
+        //  The underlying message
+        zmq_msg_t msg;
+
+        //  Disable implicit message copying, so that users won't use shared
+        //  messages (less efficient) without being aware of the fact.
+        message_t (const message_t&);
+        void operator = (const message_t&);
+    };
+
+    class context_t
+    {
+        friend class socket_t;
+
+    public:
+
+        inline context_t (int io_threads_)
+        {
+            ptr = zmq_init (io_threads_);
+            if (ptr == NULL)
+                throw error_t ();
+        }
+
+        inline ~context_t ()
+        {
+            int rc = zmq_term (ptr);
+            assert (rc == 0);
+        }
+
+        //  Be careful with this, it's probably only useful for
+        //  using the C api together with an existing C++ api.
+        //  Normally you should never need to use this.
+        inline operator void* ()
+        {
+            return ptr;
+        }
+
+    private:
+
+        void *ptr;
+
+        context_t (const context_t&);
+        void operator = (const context_t&);
+    };
+
+    class socket_t
+    {
+    public:
+
+        inline socket_t (context_t &context_, int type_)
+        {
+            ptr = zmq_socket (context_.ptr, type_);
+            if (ptr == NULL)
+                throw error_t ();
+        }
+
+        inline ~socket_t ()
+        {
+            close();
+        }
+
+        inline operator void* ()
+        {
+            return ptr;
+        }
+
+        inline void close()
+        {
+            if(ptr == NULL)
+                // already closed
+                return ;
+            int rc = zmq_close (ptr);
+            if (rc != 0)
+                throw error_t ();
+            ptr = 0 ;
+        }
+
+        inline void setsockopt (int option_, const void *optval_,
+            size_t optvallen_)
+        {
+            int rc = zmq_setsockopt (ptr, option_, optval_, optvallen_);
+            if (rc != 0)
+                throw error_t ();
+        }
+
+        inline void getsockopt (int option_, void *optval_,
+            size_t *optvallen_)
+        {
+            int rc = zmq_getsockopt (ptr, option_, optval_, optvallen_);
+            if (rc != 0)
+                throw error_t ();
+        }
+
+        inline void bind (const char *addr_)
+        {
+            int rc = zmq_bind (ptr, addr_);
+            if (rc != 0)
+                throw error_t ();
+        }
+
+        inline void connect (const char *addr_)
+        {
+            int rc = zmq_connect (ptr, addr_);
+            if (rc != 0)
+                throw error_t ();
+        }
+
+		inline void disconnect (const char *addr_)
+		{
+    		int rc = zmq_disconnect (ptr, addr_);
+    		if (rc != 0)
+        		throw error_t ();
+		}
+
+        inline bool send (message_t &msg_, int flags_ = 0)
+        {
+            int nbytes = zmq_sendmsg (ptr, &(msg_.msg), flags_);
+            if (nbytes >= 0)
+                return true;
+            if (zmq_errno () == EAGAIN)
+                return false;
+            throw error_t ();
+        }
+
+        inline bool recv (message_t *msg_, int flags_ = 0)
+        {
+            int nbytes = zmq_recvmsg (ptr, &(msg_->msg), flags_);
+            if (nbytes >= 0)
+                return true;
+            if (zmq_errno () == EAGAIN)
+                return false;
+            throw error_t ();
+        }
+
+    private:
+
+        void *ptr;
+
+        socket_t (const socket_t&);
+        void operator = (const socket_t&);
+    };
+
+}
+
+#endif
+