support bytebuffer updates on streaming hashes #187
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
pyr
force-pushed
the
streaming-on-bytebuffers
branch
from
7949a20 to
e5e68ba
Compare
In some cases ByteBuffers do not provide access to an underlying byte array without incurring copies, this is notably the case for off-heap direct bytebuffers. This patch provides a way to call update on streaming XXHASH instances against a ByteBuffer, which avoids the extra copy needed into a byte array.
pyr
force-pushed
the
streaming-on-bytebuffers
branch
from
e5e68ba to
f65a4b7
Compare
|
Hi, a quick update on this one, it has been running fine for over a year in production. Is there any interest in seeing this get in or should I close the PR? |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
In some cases ByteBuffers do not provide access to an underlying
byte array without incurring copies, this is notably the case
for off-heap direct bytebuffers.
This patch provides a way to call update on streaming XXHASH instances
against a ByteBuffer, which avoids the extra copy needed into a byte
array.
I'm putting this one up to gauge interest. If present, I can adapt the Java safe and unsafe variants to also support the method, I first wanted some feedback on the general idea.
I'm also a bit unclear on what to do should we reach a case where the buffer supports neither
.isDirectnor.hasArray, in this case it feels as though the only way forward is to allocate a byte array to copy the ByteBuffer contents into