class IOFount(object):
"""
Fount that reads from a file-like-object.
"""
outputType = ISegment
_source = attrib() # type: BinaryIO
drain = attrib(
validator=optional(provides(IDrain)), default=None, init=False
) # type: IDrain
_paused = attrib(validator=instance_of(bool), default=False, init=False)
def __attrs_post_init__(self):
# type: () -> None
self._pauser = Pauser(self._pause, self._resume)
def _flowToDrain(self):
# type: () -> None
if self.drain is not None and not self._paused:
data = self._source.read()
if data:
self.drain.receive(data)
self.drain.flowStopped(Failure(StopIteration()))
def flowTo(self, drain):
# type: (IDrain) -> IFount
result = beginFlowingTo(self, drain)
self._flowToDrain()
return result
def pauseFlow(self):
# type: () -> None
return self._pauser.pause()
def stopFlow(self):
# type: () -> None
return self._pauser.resume()
def _pause(self):
# type: () -> None
self._paused = True
def _resume(self):
# type: () -> None
self._paused = False
self._flowToDrain()
class IOFount(object):
"""
Fount that reads from a file-like-object.
"""
outputType = ISegment
_source = attrib() # type: BinaryIO
drain = attrib(
validator=optional(provides(IDrain)), default=None, init=False
) # type: IDrain
_paused = attrib(validator=instance_of(bool), default=False, init=False)
def __attrs_post_init__(self):
# type: () -> None
self._pauser = Pauser(self._pause, self._resume)
def _flowToDrain(self):
# type: () -> None
if self.drain is not None and not self._paused:
data = self._source.read()
if data:
self.drain.receive(data)
self.drain.flowStopped(Failure(StopIteration()))
def flowTo(self, drain):
# type: (IDrain) -> IFount
result = beginFlowingTo(self, drain)
self._flowToDrain()
return result
def pauseFlow(self):
# type: () -> None
return self._pauser.pause()
def stopFlow(self):
# type: () -> None
return self._pauser.resume()
def _pause(self):
# type: () -> None
self._paused = True
def _resume(self):
# type: () -> None
self._paused = False
self._flowToDrain()
def __attrs_post_init__(self):
# type: () -> None
self._pauser = Pauser(self._pause, self._resume)
def __attrs_post_init__(self):
# type: () -> None
self._pauser = Pauser(self._pause, self._resume)
def __attrs_post_init__(self) -> None:
self._pauser = Pauser(self._pause, self._resume)