pyqtgraph/multiprocess/bootstrap.py
2013-12-23 11:15:54 -05:00

29 lines
1.1 KiB
Python

"""For starting up remote processes"""
import sys, pickle, os
if __name__ == '__main__':
if hasattr(os, 'setpgrp'):
os.setpgrp() ## prevents signals (notably keyboard interrupt) being forwarded from parent to this process
if sys.version[0] == '3':
#name, port, authkey, ppid, targetStr, path, pyside = pickle.load(sys.stdin.buffer)
opts = pickle.load(sys.stdin.buffer)
else:
#name, port, authkey, ppid, targetStr, path, pyside = pickle.load(sys.stdin)
opts = pickle.load(sys.stdin)
#print "key:", ' '.join([str(ord(x)) for x in authkey])
path = opts.pop('path', None)
if path is not None:
## rewrite sys.path without assigning a new object--no idea who already has a reference to the existing list.
while len(sys.path) > 0:
sys.path.pop()
sys.path.extend(path)
if opts.pop('pyside', False):
import PySide
targetStr = opts.pop('targetStr')
target = pickle.loads(targetStr) ## unpickling the target should import everything we need
target(**opts) ## Send all other options to the target function
sys.exit(0)