/// <inheritdoc />
public override bool ConcurrentWriter(ref Key key, ref SpanByte src, ref SpanByte dst)
{
if (locking)
{
dst.SpinLock();
}
// We can write the source (src) data to the existing destination (dst) in-place,
// only if there is sufficient space
if (dst.Length < src.Length || dst.IsMarkedReadOnly())
{
dst.MarkReadOnly();
if (locking)
{
dst.Unlock();
}
return(false);
}
// Option 1: write the source data, leaving the destination size unchanged. You will need
// to mange the actual space used by the value if you stop here.
src.CopyTo(ref dst);
// We can adjust the length header on the serialized log, if we wish.
// This method will also zero out the extra space to retain log scan correctness.
dst.ShrinkSerializedLength(src.Length);
if (locking)
{
dst.Unlock();
}
return(true);
}
/// <inheritdoc />
public override bool ConcurrentWriter(ref Key key, ref SpanByte input, ref SpanByte src, ref SpanByte dst, ref Output output, ref UpsertInfo upsertInfo)
{
if (dst.Length < src.Length)
{
return(false);
}
// We can adjust the length header on the serialized log, if we wish.
// This method will also zero out the extra space to retain log scan correctness.
dst.UnmarkExtraMetadata();
dst.ShrinkSerializedLength(src.Length);
// Write the source data, leaving the destination size unchanged. You will need
// to mange the actual space used by the value if you stop here.
src.CopyTo(ref dst);
return(true);
}
/// <inheritdoc/>
public override void CopyUpdater(ref Key key, ref SpanByte input, ref SpanByte oldValue, ref SpanByte newValue, ref Output output)
{
oldValue.CopyTo(ref newValue);
}
/// <inheritdoc/>
public override void InitialUpdater(ref Key key, ref SpanByte input, ref SpanByte value, ref Output output)
{
input.CopyTo(ref value);
}
/// <inheritdoc />
public override void SingleWriter(ref Key key, ref SpanByte src, ref SpanByte dst)
{
src.CopyTo(ref dst);
}
/// <inheritdoc/>
public override bool CopyUpdater(ref Key key, ref SpanByte input, ref SpanByte oldValue, ref SpanByte newValue, ref Output output, ref RMWInfo rmwInfo)
{
oldValue.CopyTo(ref newValue);
return(true);
}
/// <inheritdoc/>
public override bool InitialUpdater(ref Key key, ref SpanByte input, ref SpanByte value, ref Output output, ref RMWInfo rmwInfo)
{
input.CopyTo(ref value);
return(true);
}
/// <inheritdoc />
public override bool SingleWriter(ref Key key, ref SpanByte input, ref SpanByte src, ref SpanByte dst, ref Output output, ref UpsertInfo upsertInfo, WriteReason reason)
{
src.CopyTo(ref dst);
return(true);
}
