Add TCP raw data server for mlat purposes

src/python/modes_raw_server.py

@@ -0,0 +1,52 @@
+#
+# Copyright 2010 Nick Foster
+# 
+# This file is part of gr-air-modes
+# 
+# gr-air-modes 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.
+# 
+# gr-air-modes 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 gr-air-modes; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+# 
+
+
+import time, os, sys, socket
+from string import split, join
+from datetime import *
+
+class modes_raw_server:
+  def __init__(self):
+    self._s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    self._s.bind(('', 9988))
+    self._s.listen(1)
+    self._s.setblocking(0) #nonblocking
+    self._conns = [] #list of active connections
+
+  def __del__(self):
+    self._s.close()
+
+  def output(self, msg):
+    for conn in self._conns[:]: #iterate over a copy of the list
+      try:
+        conn.send(msg)
+      except socket.error:
+        self._conns.remove(conn)
+        print "Connections: ", len(self._conns)
+
+  def add_pending_conns(self):
+    try:
+      conn, addr = self._s.accept()
+      self._conns.append(conn)
+      print "Connections: ", len(self._conns)
+    except socket.error:
+      pass

src/python/uhd_modes.py

@@ -33,6 +33,7 @@ from modes_print import modes_output_print
 from modes_sql import modes_output_sql
 from modes_sbs1 import modes_output_sbs1
 from modes_kml import modes_kml
+from modes_raw_server import modes_raw_server
 import gnuradio.gr.gr_threading as _threading
 import csv
 
@@ -133,6 +134,8 @@ if __name__ == '__main__':
                       help="filename for Google Earth KML output")
   parser.add_option("-P","--sbs1", action="store_true", default=False,
                       help="open an SBS-1-compatible server on port 30003")
+  parser.add_option("-w","--raw", action="store_true", default=False,
+                      help="open a server outputting raw timestamped data on port 9988")
   parser.add_option("-n","--no-print", action="store_true", default=False,
                       help="disable printing decoded packets to stdout")
   parser.add_option("-l","--location", type="string", default=None,
@@ -162,12 +165,17 @@ if __name__ == '__main__':
   if options.no_print is not True:
     outputs.append(modes_output_print(my_position).parse)
 
+  if options.raw is True:
+    rawport = modes_raw_server()
+    outputs.append(rawport.output)
+    updates.append(rawport.add_pending_conns)
+
   fg = adsb_rx_block(options, args, queue)
   runner = top_block_runner(fg)
 
   while 1:
     try:
-      #the update registry is really for the SBS1 plugin -- we're looking for new TCP connections.
+      #the update registry is really for the SBS1 and raw server plugins -- we're looking for new TCP connections.
       #i think we have to do this here rather than in the output handler because otherwise connections will stack up
       #until the next output arrives
       for update in updates: