mirror of https://github.com/tidwall/tile38.git
32 lines
1.4 KiB
Markdown
32 lines
1.4 KiB
Markdown
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[](https://godoc.org/github.com/pierrec/lz4)
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[](https://travis-ci.org/pierrec/lz4)
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# lz4
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LZ4 compression and decompression in pure Go
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## Usage
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```go
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import "github.com/pierrec/lz4"
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```
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## Description
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Package lz4 implements reading and writing lz4 compressed data (a frame),
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as specified in http://fastcompression.blogspot.fr/2013/04/lz4-streaming-format-final.html,
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using an io.Reader (decompression) and io.Writer (compression).
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It is designed to minimize memory usage while maximizing throughput by being able to
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[de]compress data concurrently.
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The Reader and the Writer support concurrent processing provided the supplied buffers are
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large enough (in multiples of BlockMaxSize) and there is no block dependency.
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Reader.WriteTo and Writer.ReadFrom do leverage the concurrency transparently.
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The runtime.GOMAXPROCS() value is used to apply concurrency or not.
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Although the block level compression and decompression functions are exposed and are fully compatible
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with the lz4 block format definition, they are low level and should not be used directly.
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For a complete description of an lz4 compressed block, see:
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http://fastcompression.blogspot.fr/2011/05/lz4-explained.html
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See https://github.com/Cyan4973/lz4 for the reference C implementation.
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