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[#176] blobstor: Handle error of zstd (de)compressor creation

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In previous implementation WithCompressObjects returned Option
than could panic if zstd (de)compressor creation failed with error.
From now errors with (de)compressor creation result in an option
without using data compression. In this case, the error is written
to the log passed to the option constructor.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
This commit is contained in:
Leonard Lyubich 2020-11-18 15:27:21 +03:00 • committed by Alex Vanin
parent 6f8c45d61b
commit f194c840d7
2 changed files with 32 additions and 12 deletions
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12
pkg/local_object_storage/blobstor/compress.go
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@ -12,24 +12,24 @@ func noOpDecompressor(data []byte) ([]byte, error) {
return data, nil
}
func zstdCompressor() func([]byte) []byte {
func zstdCompressor() (func([]byte) []byte, error) {
enc, err := zstd.NewWriter(nil)
if err != nil {
panic(err)
return nil, err
}
return func(data []byte) []byte {
return enc.EncodeAll(data, make([]byte, 0, len(data)))
}
}, nil
}
func zstdDecompressor() func([]byte) ([]byte, error) {
func zstdDecompressor() (func([]byte) ([]byte, error), error) {
dec, err := zstd.NewReader(nil)
if err != nil {
panic(err)
return nil, err
}
return func(data []byte) ([]byte, error) {
return dec.DecodeAll(data, nil)
}
}, nil
}