async def run(self):
"""
Main loop to spawn http and https servers and handle signal interrupts
"""
print("Server starting up")
async with SignalQueue(signal.SIGHUP, signal.SIGINT,
signal.SIGTERM) as sig:
while True:
# Spin up tcp servers
if settings.ENABLE_HTTP:
serve_http_task = await spawn(tcp_server, "localhost",
settings.HTTP_PORT,
self.serve_http)
if settings.ENABLE_HTTPS:
serve_https_task = await spawn(tcp_server, "localhost",
settings.HTTPS_PORT,
self.serve_https)
# wait for signal intterupts
signo = await sig.get()
await serve_http_task.cancel()
await serve_https_task.cancel()
if signo == signal.SIGHUP:
print("Server restarting")
# TODO reload configuration
else:
print("Server shutting down")
break
async def watch_signal(self):
while True:
# term for warm shutdown
# int for cold shutdown
# hup for reload
ss = [signal.SIGTERM, signal.SIGINT, signal.SIGCHLD, signal.SIGHUP]
sname = {i.value: i.name for i in ss}
with SignalQueue(*ss) as sq:
signo = await sq.get()
self.logger.info('get signal: %s' % sname[signo])
if signo != signal.SIGCHLD:
if signo == signal.SIGTERM:
self.logger.info('kill myself...warm shutdown')
await self.shutdown()
elif signo == signal.SIGINT:
self.logger.info('kill myself...cold shutdown')
await self.shutdown(warm=False)
elif signo == signal.SIGHUP:
self.logger.info('reloading...')
# TODO: reload, restart?
pass
break
else:
self.worker_pool.reap_workers()
continue
return
async def main(host, port):
async with SignalQueue(signal.SIGHUP) as restart:
while True:
log.info('Starting the server')
serv_task = await spawn(chat_server, host, port)
await restart.get()
log.info('Server shutting down')
await serv_task.cancel()
async def main(host, port):
async with SignalQueue(signal.SIGHUP) as restart:
while True:
print('Starting the server')
server = await spawn(tcp_server, host, port, client_handler)
await restart.get()
print('Server shutting down')
await server.cancel()
async def main(host, port):
async with SignalQueue(signals.SIGHUP, signals.SIGTERM) as close_signals:
logger.info('Starting the server')
serv_task = await spawn(server, host, port)
# Stop here and wait for any of the close signals
signal = await close_signals.get()
logger.info('Server shutting down: %s', signal)
# cancle all server tasks
await serv_task.cancel()