def add_win32_handle(self, handle: HANDLE,
callback: Callable[[], None]) -> None:
"""
Add a Win32 handle to the event loop.
"""
if handle.value is None:
raise ValueError('Invalid handle.')
handle_value = handle.value
loop = get_event_loop()
self._handle_callbacks[handle_value] = callback
# Add reader.
def ready() -> None:
# Tell the callback that input's ready.
try:
callback()
finally:
run_in_executor_with_context(wait, loop=loop)
# Wait for the input to become ready.
# (Use an executor for this, the Windows asyncio event loop doesn't
# allow us to wait for handles like stdin.)
def wait() -> None:
if self._handle_callbacks.get(handle_value) != callback:
return
wait_for_handles([handle])
loop.call_soon_threadsafe(ready)
run_in_executor_with_context(wait, loop=loop)
def add_win32_handle(self, handle: int, callback: Callable[[], None]) -> None:
"""
Add a Win32 handle to the event loop.
"""
loop = get_event_loop()
self._handle_callbacks[handle] = callback
# Add reader.
def ready() -> None:
# Tell the callback that input's ready.
try:
callback()
finally:
run_in_executor_with_context(wait, loop=loop)
# Wait for the input to become ready.
# (Use an executor for this, the Windows asyncio event loop doesn't
# allow us to wait for handles like stdin.)
def wait() -> None:
if self._handle_callbacks.get(handle) != callback:
return
wait_for_handles([handle])
loop.call_soon_threadsafe(ready)
run_in_executor_with_context(wait, loop=loop)
def add_win32_handle(self, handle: HANDLE,
callback: Callable[[], None]) -> None:
"""
Add a Win32 handle to the event loop.
"""
handle_value = handle.value
if handle_value is None:
raise ValueError("Invalid handle.")
# Make sure to remove a previous registered handler first.
self.remove_win32_handle(handle)
loop = get_event_loop()
self._handle_callbacks[handle_value] = callback
# Create remove event.
remove_event = create_win32_event()
self._remove_events[handle_value] = remove_event
# Add reader.
def ready() -> None:
# Tell the callback that input's ready.
try:
callback()
finally:
run_in_executor_with_context(wait, loop=loop)
# Wait for the input to become ready.
# (Use an executor for this, the Windows asyncio event loop doesn't
# allow us to wait for handles like stdin.)
def wait() -> None:
# Wait until either the handle becomes ready, or the remove event
# has been set.
result = wait_for_handles([remove_event, handle])
if result is remove_event:
windll.kernel32.CloseHandle(remove_event)
return
else:
loop.call_soon_threadsafe(ready)
run_in_executor_with_context(wait, loop=loop)
def ready() -> None:
# Tell the callback that input's ready.
try:
callback()
finally:
run_in_executor_with_context(wait, loop=loop)
def pre_run() -> None:
run_in_executor_with_context(start)
def pre_run() -> None:
run_in_executor_with_context(start)
def ready() -> None:
# Tell the callback that input's ready.
try:
callback()
finally:
run_in_executor_with_context(wait, loop=loop)
