async def _server_request_loop(
self, delegate: httputil.HTTPServerConnectionDelegate) -> None:
try:
while True:
conn = HTTP1Connection(self.stream, False, self.params,
self.context)
request_delegate = delegate.start_request(self, conn)
try:
ret = await conn.read_response(request_delegate)
except (
iostream.StreamClosedError,
iostream.UnsatisfiableReadError,
asyncio.CancelledError,
):
return
except _QuietException:
# This exception was already logged.
conn.close()
return
except Exception:
gen_log.error("Uncaught exception", exc_info=True)
conn.close()
return
if not ret:
return
await asyncio.sleep(0)
finally:
delegate.on_close(self)
async def _server_request_loop(
self, delegate: httputil.HTTPServerConnectionDelegate
) -> None:
try:
while True:
conn = HTTP1Connection(self.stream, False, self.params, self.context)
request_delegate = delegate.start_request(self, conn)
try:
ret = await conn.read_response(request_delegate)
except (
iostream.StreamClosedError,
iostream.UnsatisfiableReadError,
asyncio.CancelledError,
):
return
except _QuietException:
# This exception was already logged.
conn.close()
return
except Exception:
gen_log.error("Uncaught exception", exc_info=True)
conn.close()
return
if not ret:
return
await asyncio.sleep(0)
finally:
delegate.on_close(self)
def _server_request_loop(
self, delegate: httputil.HTTPServerConnectionDelegate
) -> Generator[Any, Any, None]:
try:
while True:
conn = HTTP1Connection(self.stream, False, self.params,
self.context)
request_delegate = delegate.start_request(self, conn)
try:
ret = yield conn.read_response(request_delegate)
except (iostream.StreamClosedError,
iostream.UnsatisfiableReadError):
return
except _QuietException:
# This exception was already logged.
conn.close()
return
except Exception:
gen_log.error("Uncaught exception", exc_info=True)
conn.close()
return
if not ret:
return
yield gen.moment
finally:
delegate.on_close(self)
async def _server_request_loop(
self, delegate: httputil.HTTPServerConnectionDelegate
) -> None:
try:
while True: # 最终每一个连接都会在这里一直loop到死, 看出来了，返回为None, 也就是并不关注你返回的是什么东西
conn = HTTP1Connection(self.stream, False, self.params, self.context) # 封装连接对象
request_delegate = delegate.start_request(self, conn) # delegate就是HTTPServer -> 调用服务端的start_request -> routing._RoutingDelegate
# 这里返回的delegate包含app、server_conn、request_conn，是一个_RoutingDelegate的实例
try:
ret = await conn.read_response(request_delegate)
except (
iostream.StreamClosedError,
iostream.UnsatisfiableReadError,
asyncio.CancelledError,
):
return
except _QuietException:
# This exception was already logged.
conn.close()
return
except Exception:
gen_log.error("Uncaught exception", exc_info=True)
conn.close()
return
if not ret:
return
await asyncio.sleep(0)
finally:
delegate.on_close(self)