ÿØÿàJFIFÿþ ÿÛC       ÿÛC ÿÀÿÄÿÄ"#QrÿÄÿÄ&1!A"2qQaáÿÚ ?Øy,æ/3JæݹÈ߲؋5êXw²±ÉyˆR”¾I0ó2—PI¾IÌÚiMö¯–þrìN&"KgX:Šíµ•nTJnLK„…@!‰-ý ùúmë;ºgµŒ&ó±hw’¯Õ@”Ü— 9ñ-ë.²1<yà‚¹ïQÐU„ہ?.’¦èûbß±©Ö«Âw*VŒ) `$‰bØԟ’ëXÖ-ËTÜíGÚ3ð«g Ÿ§¯—Jx„–’U/ÂÅv_s(Hÿ@TñJÑãõçn­‚!ÈgfbÓc­:él[ðQe 9ÀPLbÃãCµm[5¿ç'ªjglå‡Ûí_§Úõl-;"PkÞÞÁQâ¼_Ñ^¢SŸx?"¸¦ùY騐ÒOÈ q’`~~ÚtËU¹CڒêV  I1Áß_ÿÙimport asyncio import collections from typing import Any, Optional try: from typing import Deque except ImportError: from typing_extensions import Deque class EventResultOrError: """ This class wrappers the Event asyncio lock allowing either awake the locked Tasks without any error or raising an exception. thanks to @vorpalsmith for the simple design. """ def __init__(self, loop: asyncio.AbstractEventLoop) -> None: self._loop = loop self._exc = None # type: Optional[BaseException] self._event = asyncio.Event() self._waiters = collections.deque() # type: Deque[asyncio.Future[Any]] def set(self, exc: Optional[BaseException] = None) -> None: self._exc = exc self._event.set() async def wait(self) -> Any: waiter = self._loop.create_task(self._event.wait()) self._waiters.append(waiter) try: val = await waiter finally: self._waiters.remove(waiter) if self._exc is not None: raise self._exc return val def cancel(self) -> None: """ Cancel all waiters """ for waiter in self._waiters: waiter.cancel()