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Added support for dynamic link MTU to Channel and Buffer

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Mark Qvist 2025-01-12 23:26:18 +01:00
parent 93330d96a0
commit bde33e7d84
3 changed files with 11 additions and 6 deletions
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4
RNS/Buffer.py
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@ -45,7 +45,8 @@ class StreamDataMessage(MessageBase):
The stream id is limited to 2 bytes - 2 bit
"""
MAX_DATA_LEN = RNS.Link.MDU - 2 - 6 # 2 for stream data message header, 6 for channel envelope
OVERHEAD = 2 + 6 # 2 for stream data message header, 6 for channel envelope
MAX_DATA_LEN = RNS.Link.MDU - OVERHEAD
"""
When the Buffer package is imported, this value is
calculcated based on the value of OVERHEAD
@ -215,6 +216,7 @@ class RawChannelWriter(RawIOBase, AbstractContextManager):
self._stream_id = stream_id
self._channel = channel
self._eof = False
self._mdu = channel.mdu - StreamDataMessage.OVERHEAD
def write(self, __b: bytes) -> int | None:
try: