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overload __iter__ in loop.Wait

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This will automatically exit child tasks in case of close() or throw() on the waiting task, but only if run through `await` or `yield from`
This commit is contained in:
Jan Pochyla 2016-09-25 15:55:08 +02:00 committed by Pavol Rusnak
parent 02b13af526
commit 70110187cc
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GPG Key ID: 91F3B339B9A02A3D
2 changed files with 8 additions and 5 deletions
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6
src/apps/homescreen/layout_homescreen.py
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@ -15,8 +15,4 @@ async def animate_logo():
async def layout_homescreen():
wait = loop.Wait([swipe_to_rotate(), animate_logo()])
try:
await wait
finally:
wait.exit()
await loop.Wait([swipe_to_rotate(), animate_logo()])

7
src/trezor/loop.py
View File

@ -194,3 +194,10 @@ class Wait(Syscall):
if self.exit_others:
self.exit()
schedule_task(self.callback, result)
def __iter__(self):
try:
return (yield self)
except:
self.exit()
raise