70 lines
1.6 KiB
Python
70 lines
1.6 KiB
Python
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from typing import Callable
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class PipeReader:
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def __init__(self, pipe_path):
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self._pipe = open(pipe_path, 'rb')
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self._message_handler = lambda msg: None
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def __enter__(self):
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return self
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def __exit__(self, type_, value, traceback):
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self.close()
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def close(self):
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self._pipe.close()
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@property
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def message_handler(self):
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return self._message_handler
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@message_handler.setter
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def message_handler(self, value):
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if not isinstance(value, Callable):
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raise ValueError("message_handler must be callable!")
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self._message_handler = value
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def run(self):
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msg = self.recv_message()
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while msg:
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self._message_handler(msg)
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msg = self.recv_message()
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def recv_message(self):
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return self._pipe.readline()[:-1]
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class PipeWriter:
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def __init__(self, pipe_path):
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self._pipe = open(pipe_path, 'wb')
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def __enter__(self):
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return self
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def __exit__(self, type_, value, traceback):
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self.close()
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def close(self):
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self._pipe.close()
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def send_message(self, message):
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self._pipe.write(message + b'\n')
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self._pipe.flush()
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class PipeIO:
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def __init__(self, in_pipe_path, out_pipe_path):
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self.reader = PipeReader(in_pipe_path)
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self.writer = PipeWriter(out_pipe_path)
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def __enter__(self):
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return self
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def __exit__(self, type_, value, traceback):
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self.close()
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def close(self):
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self.reader.close()
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self.writer.close()
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