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Copy pathasyncio_echo_server_coroutine.py
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Copy pathasyncio_echo_server_coroutine.py
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49 lines (41 loc) · 1.24 KB
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import asyncio
import logging
import sys
SERVER_ADDRESS = ("localhost", 10000)
logging.basicConfig(
level=logging.DEBUG,
format="%(name)s: %(message)s",
stream=sys.stderr,
)
log = logging.getLogger("main")
event_loop = asyncio.get_event_loop()
async def echo(reader, writer):
address = writer.get_extra_info("peername")
log = logging.getLogger("echo_{}_{}".format(*address))
log.debug("connection accepted")
while True:
data = await reader.read(128)
if data:
log.debug("received: {!r}".format(data))
writer.write(data)
await writer.drain()
log.debug("sent {!r}".format(data))
else:
log.debug("closing")
writer.close()
return
# Create the server and let the loop finish the coroutine before
# starting the real event loop
factory = asyncio.start_server(echo, *SERVER_ADDRESS)
server = event_loop.run_until_complete(factory)
log.debug("starting up on {} port {}".format(*SERVER_ADDRESS))
try:
event_loop.run_forever()
except KeyboardInterrupt:
pass
finally:
log.debug("closing server")
server.close()
event_loop.run_until_complete(server.wait_closed())
log.debug("closing event loop")
event_loop.close()