dde0763840
Turns out, Neo uses block compression and not a streaming lz4 format. And it doesn't contain uncompressed payload size which makes guessing it somewhat suboptimal.
29 lines
646 B
Go
29 lines
646 B
Go
package network
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import (
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"github.com/pierrec/lz4"
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)
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// compress compresses bytes using lz4.
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func compress(source []byte) ([]byte, error) {
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dest := make([]byte, lz4.CompressBlockBound(len(source)))
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size, err := lz4.CompressBlock(source, dest, nil)
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if err != nil {
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return nil, err
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}
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return dest[:size], nil
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}
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// decompress decompresses bytes using lz4.
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func decompress(source []byte) ([]byte, error) {
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maxSize := len(source) * 255
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if maxSize > PayloadMaxSize {
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maxSize = PayloadMaxSize
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}
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dest := make([]byte, maxSize)
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size, err := lz4.UncompressBlock(source, dest)
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if err != nil {
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return nil, err
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}
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return dest[:size], nil
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}
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