[Python] Create thread, and receive signal to handle reload, shutdown

小試了一下怎樣用Python開一隻thread, 然後讓它收signal 做reload跟 shutdown
https://github.com/jofenting/memo/blob/master/testSig.py

	import threading
	import time
	import signal
	import os
	class TestThread(threading.Thread):
	__terminate = False
	__reload = False
	__thisThread = None
	def __init__(self):
	threading.Thread.__init__(self)
	print 'init'
	def __del__ (self) :
	print 'del'
	def run(self):
	self.__thisThread = threading.currentThread()
	print 'self.__thisThread=%s' % self.__thisThread
	while True:
	if self.__reload:
	print 'reload'
	self.__reload = False
	if self.__terminate:
	print 'terminate'
	break
	print '.'
	time.sleep(1)
	def reload(self):
	self.__reload = True
	def stop(self):
	self.__terminate = True
	def isRunning(self):
	return not self.__terminate
	def sighandler(self, signum, stack):
	print 'stgnum=%s' % signum
	if signum == signal.SIGHUP:
	self.reload()
	if signum == signal.SIGTERM:
	self.stop()
	if __name__ == '__main__':
	print 'My PID is:', os.getpid()
	thread = TestThread()
	signal.signal(signal.SIGHUP, thread.sighandler)
	signal.signal(signal.SIGTERM, thread.sighandler)
	thread.start()
	while thread.isRunning():
	print('-')
	time.sleep(5)
	print 'join'
	thread.join()

view raw testSig.py hosted with ❤ by GitHub

跑起來

python testSig.py

用另一個console送signal給他
reload

kill -1 <pid>

shutdown

kill -15 <pid>

收工