Merge pull request #6487 from rhatdan/VENDOR

Vendor in container/storage v1.20.2

1 files changed, 14 insertions, 0 deletions

diff --git a/vendor/github.com/klauspost/compress/zstd/README.md b/vendor/github.com/klauspost/compress/zstd/README.md
index bc977a302..f2a80b5d0 100644
--- a/vendor/github.com/klauspost/compress/zstd/README.md
+++ b/vendor/github.com/klauspost/compress/zstd/README.md
@@ -309,6 +309,20 @@ The decoder can be used for *concurrent* decompression of multiple buffers.
 It will only allow a certain number of concurrent operations to run. 
 To tweak that yourself use the `WithDecoderConcurrency(n)` option when creating the decoder.   
 
+### Dictionaries
+
+Data compressed with [dictionaries](https://github.com/facebook/zstd#the-case-for-small-data-compression) can be decompressed.
+
+Dictionaries are added individually to Decoders.
+Dictionaries are generated by the `zstd --train` command and contains an initial state for the decoder.
+To add a dictionary use the `RegisterDict(data)` with the dictionary data before starting any decompression.
+
+The dictionary will be used automatically for the data that specifies them.
+
+A re-used Decoder will still contain the dictionaries registered.
+
+When registering a dictionary with the same ID it will override the existing.
+
 ### Allocation-less operation
 
 The decoder has been designed to operate without allocations after a warmup.