1 files changed, 124 insertions, 0 deletions
diff --git a/src/pgm_socket.hpp b/src/pgm_socket.hpp
new file mode 100644
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--- /dev/null
+++ b/src/pgm_socket.hpp
@@ -0,0 +1,124 @@
+/*
+    Copyright (c) 2009-2011 250bpm s.r.o.
+    Copyright (c) 2007-2009 iMatix Corporation
+    Copyright (c) 2010-2011 Miru Limited
+    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 __PGM_SOCKET_HPP_INCLUDED__
+#define __PGM_SOCKET_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#if defined ZMQ_HAVE_OPENPGM
+
+#ifdef ZMQ_HAVE_WINDOWS
+#include "windows.hpp"
+#define __PGM_WININT_H__
+#endif
+
+#include <pgm/pgm.h>
+
+#ifdef ZMQ_HAVE_OSX
+#include <pgm/in.h>
+#endif
+
+#include "fd.hpp"
+#include "options.hpp"
+
+namespace zmq
+{
+    //  Encapsulates PGM socket.
+    class pgm_socket_t
+    {
+
+    public:
+
+        //  If receiver_ is true PGM transport is not generating SPM packets.
+        pgm_socket_t (bool receiver_, const options_t &options_);
+
+        //  Closes the transport.
+        ~pgm_socket_t ();
+
+        //  Initialize PGM network structures (GSI, GSRs).
+        int init (bool udp_encapsulation_, const char *network_);
+
+        //  Resolve PGM socket address.
+        static int init_address(const char *network_, struct pgm_addrinfo_t **addr, uint16_t *port_number);
+        
+        //   Get receiver fds and store them into user allocated memory.
+        void get_receiver_fds (fd_t *receive_fd_, fd_t *waiting_pipe_fd_);
+
+        //   Get sender and receiver fds and store it to user allocated 
+        //   memory. Receive fd is used to process NAKs from peers.
+        void get_sender_fds (fd_t *send_fd_, fd_t *receive_fd_,
+            fd_t *rdata_notify_fd_, fd_t *pending_notify_fd_);
+
+        //  Send data as one APDU, transmit window owned memory.
+        size_t send (unsigned char *data_, size_t data_len_);
+
+        //  Returns max tsdu size without fragmentation.
+        size_t get_max_tsdu_size ();
+
+        //  Receive data from pgm socket.
+        ssize_t receive (void **data_, const pgm_tsi_t **tsi_);
+
+        long get_rx_timeout ();
+        long get_tx_timeout ();
+
+        //  POLLIN on sender side should mean NAK or SPMR receiving. 
+        //  process_upstream function is used to handle such a situation.
+        void process_upstream ();
+
+    private:
+
+        //  Compute size of the buffer based on rate and recovery interval.
+        int compute_sqns (int tpdu_);
+    
+        //  OpenPGM transport.
+        pgm_sock_t* sock;
+
+        int last_rx_status, last_tx_status;
+
+        //  Associated socket options.
+        options_t options;
+       
+        //  true when pgm_socket should create receiving side.
+        bool receiver;
+
+        //  Array of pgm_msgv_t structures to store received data
+        //  from the socket (pgm_transport_recvmsgv).
+        pgm_msgv_t *pgm_msgv;
+
+        //  Size of pgm_msgv array.
+        size_t pgm_msgv_len;
+
+        // How many bytes were read from pgm socket.
+        size_t nbytes_rec;
+
+        //  How many bytes were processed from last pgm socket read.
+        size_t nbytes_processed;
+        
+        //  How many messages from pgm_msgv were already sent up.
+        size_t pgm_msgv_processed;
+    };
+}
+#endif
+
+#endif
+