Commit graph

11 commits

Author SHA1 Message Date
Jim Posen
884680ddbd Serialize filter with N as a VarInt instead of fixed-size. 2018-05-15 19:14:18 -07:00
Olaoluwa Osuntokun
54b6d534d2 gcs: extract fast reduce into distinct func, add comments 2018-05-15 19:14:18 -07:00
Alex
dabaf053db gcs: update modulo algorithm to fast range per gmaxwell's suggestion
The BIP will now specify that the fast range described at the URL
below is used instead of modulo:

https://lemire.me/blog/2016/06/27/a-fast-alternative-to-the-modulo-reduction/
2018-05-15 19:14:18 -07:00
Olaoluwa Osuntokun
e14ee486e6 gcs: fix constant overflow for 32-bit systems 2018-05-15 19:14:18 -07:00
Olaoluwa Osuntokun
18097a52c4 gcs: explicitly optimize inner loop of gcs filter computation 2018-05-15 19:14:18 -07:00
Olaoluwa Osuntokun
c59d7e8fba gcs: pre-allocate capacity of slice for uncompressed filter values
This change will reduce the total number of allocations required to
create/store the allocated filter as we’ll now perform a _single_
allocation, rather than one each time the the dynamically size slice
reaches capacity.
2018-05-15 19:14:18 -07:00
Olaoluwa Osuntokun
0f2eb80fdb gcs: add some line spacing, wrap comments to 80 characters 2018-05-15 19:14:18 -07:00
Alex
f74edf2c4d gcs: allow optional de/serialization of N and P parameters 2018-05-15 19:14:18 -07:00
Alex
b21739c0e2 Fix issues found by golint without changing API. 2018-05-15 19:14:18 -07:00
Alex
684cf07725 Rename gcsFilter type to GCSFilter to export it. 2018-05-15 19:14:18 -07:00
Alex
3069dcf175 gcs: add package for building and using Golomb-coded set filters 2018-05-15 19:14:18 -07:00