def _after_write(self, buffer):
"""Pass the processed buffer down to the bottom layer."""
if not self.connected_down:
return
# print('AutomaticPipe passing buffer down: {}'.format(buffer))
self.write_down(buffer)
yield from wait() # wait for more buffer activity
def _after_read(self, buffer):
"""Pass the processed buffer up to the top layer."""
if not self.connected_up:
return
# print('AutomaticPipe passing buffer up: {}'.format(buffer))
self.read_up(buffer)
yield from wait() # wait for more buffer activity
def incrementer_wait(last_received=[None]):
"""Increment every received number."""
while True:
number = yield from receive()
yield from send(number + 1)
yield from wait(
) # wait until data is added to the receive queue before proceeding
last_received[0] = number
def _write_two(self, buffer):
"""Write the buffer to the connection.
This is used to overwrite the after_write of the bottom of the pipeline
if it's an automatic pipeline.
"""
# print('Sending to pipeline one: {}'.format(buffer))
self.pipeline_one.to_read(buffer)
yield from wait()
def _write(self, buffer):
"""Write the buffer to the connection.
This is used to overwrite the after_write of the bottom of the pipeline
if it's an automatic pipeline.
"""
try:
if buffer:
# print(buffer)
self.connection.write(buffer)
except serial.serialutil.SerialException:
self.receiver_running = False
self.has_receive.cancel()
self.logger.error('Serial device disconnected!')
yield from wait()
def after_write(self, buffer):
"""Do nothing."""
yield from wait()
def after_send(self, event):
"""Do nothing."""
yield from wait()
def after_read(self, buffer):
"""Do nothing."""
yield from wait()
def after_receive(self, event):
"""Do nothing."""
yield from wait()
