UNLOCK_BYTE_RANGE: Unlock Bytes

This message is sent to unlock the given byte range. offset, count, and pid must be identical to that specified in a prior successful lock. If an unlock references an address range that is not locked, no error is generated.

Since offset is a 32 bit quantity, this request is inappropriate for general locking within a very large file.

Client Request
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Description
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UCHAR WordCount; Count of parameter words = 5
USHORT Fid; File handle
ULONG Count; Count of bytes to unlock
ULONG Offset; Offset from start of file
USHORT ByteCount; Count of data bytes = 0

Server Response
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Description
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UCHAR WordCount; Count of parameter words = 0
USHORT ByteCount; Count of data bytes = 0