2022-05-31 17:56:37 +00:00
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import asyncio
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2022-11-29 14:14:20 +00:00
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import logging
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2022-12-02 19:28:40 +00:00
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import threading
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2022-11-01 13:22:55 +00:00
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from .uv import UVLoop
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2022-06-02 19:00:42 +00:00
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2022-11-14 19:11:08 +00:00
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import asyncio
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2022-05-31 20:53:20 +00:00
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def future_handler(future, loop, exception_handler, response):
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try:
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future.result()
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return None
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except Exception as error:
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2022-11-16 19:28:46 +00:00
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if hasattr(exception_handler, "__call__"):
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2022-05-31 20:53:20 +00:00
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exception_handler(loop, error, response)
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else:
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try:
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2022-11-16 19:28:46 +00:00
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# just log in console the error to call attention
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2022-11-29 14:14:20 +00:00
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logging.error("Uncaught Exception: %s" % str(error))
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2022-05-31 20:53:20 +00:00
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if response != None:
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response.write_status(500).end("Internal Error")
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finally:
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2022-10-26 01:08:13 +00:00
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return None
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return None
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2022-05-31 20:53:20 +00:00
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2022-11-16 19:28:46 +00:00
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2022-05-31 17:56:37 +00:00
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class Loop:
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def __init__(self, exception_handler=None):
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2022-12-04 11:59:12 +00:00
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self.loop = asyncio.get_event_loop()
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2022-06-02 19:00:42 +00:00
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self.uv_loop = UVLoop()
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2022-11-16 19:28:46 +00:00
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if hasattr(exception_handler, "__call__"):
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self.exception_handler = exception_handler
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self.loop.set_exception_handler(
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lambda loop, context: exception_handler(loop, context, None)
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)
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2022-05-31 20:53:20 +00:00
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else:
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self.exception_handler = None
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self.started = False
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2022-05-31 17:56:37 +00:00
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2022-10-25 12:53:18 +00:00
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def set_timeout(self, timeout, callback, user_data):
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return self.uv_loop.create_timer(timeout, 0, callback, user_data)
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fixed UVLoop, and added better strategy to Loop, added post support, get_data(), get_json(), get_text(), get_cookie(), set_cookie(), pending x-www-form-urlencoded and form-data (maybe only with another package), added more options for keys in response, added fallback to None if decode fails in request, added on_writable and on_data events, pending try_end and stream examples, added upload and post examples
2022-06-03 21:53:42 +00:00
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def create_future(self):
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return self.loop.create_future()
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2022-12-04 11:59:12 +00:00
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def _keep_alive(self):
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if self.started:
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self.uv_loop.run_once()
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self.loop.call_soon(self._keep_alive)
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def run(self):
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self.started = True
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self.loop.call_soon(self._keep_alive)
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2022-12-02 19:42:43 +00:00
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self.loop.run_forever()
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2022-12-02 14:29:26 +00:00
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# clean up uvloop
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self.uv_loop.stop()
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def run_once(self):
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# run one step of asyncio
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self.loop._stopping = True
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self.loop._run_once()
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# run one step of libuv
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self.uv_loop.run_once()
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def stop(self):
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2022-12-07 12:38:42 +00:00
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if self.started:
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# Just mark as started = False and wait
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self.started = False
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self.loop.stop()
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# Exposes native loop for uWS
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def get_native_loop(self):
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return self.uv_loop.get_native_loop()
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def run_async(self, task, response=None):
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# with run_once
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future = asyncio.ensure_future(task, loop=self.loop)
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# with threads
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future.add_done_callback(
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lambda f: future_handler(f, self.loop, self.exception_handler, response)
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)
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# force asyncio run once to enable req in async functions before first await
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self.loop._run_once()
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return future
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2022-06-01 23:00:05 +00:00
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def dispose(self):
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if self.uv_loop:
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self.uv_loop.dispose()
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self.uv_loop = None
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2022-06-01 23:00:05 +00:00
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# if sys.version_info >= (3, 11)
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# with asyncio.Runner(loop_factory=uvloop.new_event_loop) as runner:
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# runner.run(main())
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# else:
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# uvloop.install()
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2022-11-14 19:11:08 +00:00
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# asyncio.run(main())
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2022-11-16 19:28:46 +00:00
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# see ./native/uv_selector.txt
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2022-11-15 13:17:09 +00:00
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# will only work on linux and macos
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# class UVSelector(asyncio.SelectorEventLoop):
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# def register(self, fileobj, events, data=None):
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# fd = fileobj.fileno()
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# if fd == -1:
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# return None
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# mask = int(events)
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# selector_key = (fs, mask, data)
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# pass
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# def tick(self):
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# pass
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# # We expose our own event loop for use with asyncio
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# class AsyncioUVLoop(asyncio.SelectorEventLoop):
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# def __init__(self):
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# self.selector = UVSelector()
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# super().__init__(self.selector)
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# def call_soon(self, *args, **kwargs):
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# self.selector.tick()
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# return super().call_soon(*args, **kwargs)
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# def call_at(self, *args, **kwargs):
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# self.selector.tick()
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# return super().call_at(*args, **kwargs)
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# asyncio.set_event_loop(uws.Loop())
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# asyncio.get_event_loop().run_forever()
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