stage_director

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#! /usr/bin/env python
# Stage Director receiver
# Copyright 2014 Stefan Schuermans <stefan@schuermans.info>
# Copyleft: GNU public license - http://www.gnu.org/copyleft/gpl.html
import datetime
import fcntl
import os
import select
import socket
import struct
import sys
import time
scriptdir = os.path.dirname(os.path.abspath(__file__))
class Receiver:
  def __init__(self):
    """construct a Stage Director Receiver object"""
    # set constants
    self.select_timeout = 0.1 # timeout (s) for select syscall
    # create member variables
    self.sock = None
    # startup
    self.sockSetup()
  def __del__(self):
    """deconstruct object"""
    self.sockClose()
  def posyParse(self, data):
    """parse received PoSy packet"""
    if len(data) < 76 or data[0:4] != "PoSy":
      return False
    flags, name, pos_ms = struct.unpack("!I64sI", data[4:76])
    name_end = name.find("\0")
    if name_end >= 0:
      name = name[:name_end]
    if flags & 1:
      pause = True
    else:
      pause = False
    # store info from PoSy packet
    print("name=%s pos=%.3fs pause=%s" % (name, pos_ms * 1e-3, pause))
  def run(self):
    """run application"""
    try:
      while True:
 
 
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