Demo/sgi/al/unicast.py

   1 #! /usr/bin/env python
   2
   3 # unicast host [port]
   4 #
   5 # Similar to "broadcast.py" but sends to a specific host only;
   6 # use "radio.py" on the designated host to receive.
   7 # This is less stressful on other hosts on the same ethernet segment
   8 # if you need to send to one host only.
   9
  10 import sys, al
  11 from socket import *
  12
  13 host = sys.argv[1]
  14
  15 port = 5555
  16 if sys.argv[2:]: port = eval(sys.argv[1])
  17
  18 s = socket(AF_INET, SOCK_DGRAM)
  19
  20 p = al.openport('unicast', 'r')
  21
  22 address = host, port
  23 while 1:
  24         # 700 samples equals 1400 bytes, or about the max packet size!
  25         data = p.readsamps(700)
  26         s.sendto(data, address)