--- /dev/null
+/* -*- c++ -*- */
+/*
+ * Copyright 2007,2008 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef INCLUDED_GR_UDP_SINK_H
+#define INCLUDED_GR_UDP_SINK_H
+
+#include <gr_sync_block.h>
+#include <gnuradio/omnithread.h>
+#if defined(HAVE_SOCKET)
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#elif defined(HAVE_WINDOWS_H)
+#include <winsock2.h>
+#include <windows.h>
+#endif
+#if defined(HAVE_NETINET_IN_H)
+#include <netinet/in.h>
+#endif
+
+class gr_udp_sink;
+typedef boost::shared_ptr<gr_udp_sink> gr_udp_sink_sptr;
+
+gr_udp_sink_sptr
+gr_make_udp_sink (size_t itemsize,
+ const char *src, unsigned short port_src,
+ const char *dst, unsigned short port_dst,
+ int payload_size=1472);
+
+/*!
+ * \brief Write stream to an UDP socket.
+ * \ingroup sink_blk
+ *
+ * \param itemsize The size (in bytes) of the item datatype
+ * \param src The source address as either the host name or the 'numbers-and-dots'
+ * IP address
+ * \param port_src Destination port to bind to (0 allows socket to choose an appropriate port)
+ * \param dst The destination address as either the host name or the 'numbers-and-dots'
+ * IP address
+ * \param port_dst Destination port to connect to
+ * \param payload_size UDP payload size by default set to
+ * 1472 = (1500 MTU - (8 byte UDP header) - (20 byte IP header))
+ */
+
+class gr_udp_sink : public gr_sync_block
+{
+ friend gr_udp_sink_sptr gr_make_udp_sink (size_t itemsize,
+ const char *src, unsigned short port_src,
+ const char *dst, unsigned short port_dst,
+ int payload_size);
+ private:
+ size_t d_itemsize;
+ bool d_updated;
+ omni_mutex d_mutex;
+
+ int d_payload_size; // maximum transmission unit (packet length)
+ int d_socket; // handle to socket
+ int d_socket_rcv; // handle to socket retuned in the accept call
+ struct in_addr d_ip_src; // store the source ip info
+ struct in_addr d_ip_dst; // store the destination ip info
+ unsigned short d_port_src; // the port number to open for connections to this service
+ unsigned short d_port_dst; // port number of the remove system
+ struct sockaddr_in d_sockaddr_src; // store the source sockaddr data (formatted IP address and port number)
+ struct sockaddr_in d_sockaddr_dst; // store the destination sockaddr data (formatted IP address and port number)
+
+ protected:
+ /*!
+ * \brief UDP Sink Constructor
+ *
+ * \param itemsize The size (in bytes) of the item datatype
+ * \param src The source address as either the host name or the 'numbers-and-dots'
+ * IP address
+ * \param port_src Destination port to bind to (0 allows socket to choose an appropriate port)
+ * \param dst The destination address as either the host name or the 'numbers-and-dots'
+ * IP address
+ * \param port_dst Destination port to connect to
+ * \param payload_size UDP payload size by default set to
+ * 1472 = (1500 MTU - (8 byte UDP header) - (20 byte IP header))
+ */
+ gr_udp_sink (size_t itemsize,
+ const char *src, unsigned short port_src,
+ const char *dst, unsigned short port_dst,
+ int payload_size);
+
+ public:
+ ~gr_udp_sink ();
+
+ /*!
+ * \brief open a socket specified by the port and ip address info
+ *
+ * Opens a socket, binds to the address, and makes connectionless association
+ * over UDP. If any of these fail, the fuction retuns the error and exits.
+ */
+ bool open();
+
+ /*!
+ * \brief Close current socket.
+ *
+ * Shuts down read/write on the socket
+ */
+ void close();
+
+ /*! \brief return the PAYLOAD_SIZE of the socket */
+ int payload_size() { return d_payload_size; }
+
+ // should we export anything else?
+
+ int work (int noutput_items,
+ gr_vector_const_void_star &input_items,
+ gr_vector_void_star &output_items);
+};
+
+#endif /* INCLUDED_GR_UDP_SINK_H */
projects / debian / gnuradio / blobdiff