public BlobChunkVerificationResultInfo OpenForWrite(Stream baseStream,
long startPosition = 0, long length = TypeExtensions.kNoneInt64,
Shell.EndianFormat endian = Shell.EndianFormat.Big)
{
Contract.Requires(IsClosed);
Contract.Requires <ArgumentNullException>(baseStream != null);
Contract.Requires <ArgumentException>(baseStream.CanSeek);
Contract.Requires <ArgumentException>(baseStream.HasPermissions(FileAccess.Write));
Contract.Requires(length.IsNoneOrPositive());
var result = BlobChunkVerificationResultInfo.ValidResult;
OpenUnderlyingStream(baseStream, FileAccess.Write, endian);
OpenStartPosition(baseStream, startPosition);
EndPosition = length.IsNotNone()
? StartPosition + length
: length;
mFooterPosition = TypeExtensions.kNoneInt64;
UnderlyingStream.StreamMode = FileAccess.Write;
if (EndPosition.IsNotNone())
{
OpenVerifyAssumedStreamSize(ref result);
}
return(result);
}
