CodePlex Issue #35020 Plain Text Attachments

send_signal.py

from subprocess import Popen, CREATE_NEW_PROCESS_GROUP
import ctypes
import signal
import sys
import time


def receive():

    def handler(signum, frame):
        print 'Received signal', signum

    signal.signal(signal.SIGBREAK, handler)
    print 'Started'

    while True:
        pass


def use_signal():
    proc = Popen([sys.executable, __file__, 'receive'],
                 creationflags=CREATE_NEW_PROCESS_GROUP)
    time.sleep(1)
    proc.send_signal(signal.CTRL_BREAK_EVENT)
    time.sleep(1)
    proc.terminate()


def use_ctypes():
    proc = Popen([sys.executable, __file__, 'receive'],
                 creationflags=CREATE_NEW_PROCESS_GROUP)
    time.sleep(1)
    ctypes.windll.kernel32.GenerateConsoleCtrlEvent(
        signal.CTRL_BREAK_EVENT, proc.pid)
    time.sleep(1)
    proc.terminate()


if __name__ == '__main__':
    locals()[sys.argv[1]]()