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55 lines
832 B
Python
55 lines
832 B
Python
from abc import ABC, abstractmethod
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class Closer(ABC):
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async def close(self) -> None:
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...
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class Reader(ABC):
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@abstractmethod
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async def read(self, n: int = None) -> bytes:
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...
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class Writer(ABC):
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@abstractmethod
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async def write(self, data: bytes) -> None:
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...
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class WriteCloser(Writer, Closer):
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pass
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class ReadCloser(Reader, Closer):
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pass
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class ReadWriter(Reader, Writer):
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pass
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class ReadWriteCloser(Reader, Writer, Closer):
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pass
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class MsgReader(ABC):
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@abstractmethod
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async def read_msg(self) -> bytes:
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...
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@abstractmethod
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async def next_msg_len(self) -> int:
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...
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class MsgWriter(ABC):
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@abstractmethod
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async def write_msg(self, msg: bytes) -> None:
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...
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class MsgReadWriter(MsgReader, MsgWriter):
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pass
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