public OperationStatus ReadFrom(
ReadOnlySpan <byte> span,
SignatureOptions options,
out BlockSignature <TRollingHashAlgorithm, TStrongHashAlgorithm> sig)
{
if (span.Length < Size(options))
{
sig = default;
return(OperationStatus.NeedMoreData);
}
var rollingHash = BinaryPrimitives.ReadInt32BigEndian(span);
var strongHash = span.Slice(4, options.StrongHashLength);
sig = new BlockSignature <TRollingHashAlgorithm, TStrongHashAlgorithm>
(rollingHash, strongHash);
return(OperationStatus.Done);
}
public bool Equals(BlockSignature <TRollingHashAlgorithm, TStrongHashAlgorithm> other)
{
Debug.Assert(_blockMatcher == null || other._blockMatcher == null);
if (_rollingHash != other._rollingHash)
{
return(false);
}
if (_blockMatcher != null)
{
return(StrongHashEquals(eager: other, lazy: this));
}
else if (other._blockMatcher != null)
{
return(StrongHashEquals(eager: this, lazy: other));
}
return(_eagerStrongHash0 == other._eagerStrongHash0 &&
_eagerStrongHash1 == other._eagerStrongHash1 &&
_eagerStrongHash2 == other._eagerStrongHash2 &&
_eagerStrongHash3 == other._eagerStrongHash3);
}
