/
zstd.go
69 lines (62 loc) · 1.81 KB
/
zstd.go
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/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package thrift
import (
"bytes"
"github.com/klauspost/compress/zstd"
)
const (
zstdTransformSupport = true
)
func zstdRead(rd byteReader) (byteReader, error) {
zlrd, err := zstd.NewReader(rd)
if err != nil {
return nil, err
}
return ensureByteReader(zlrd), nil
}
func zstdWriter(tmpbuf *bytes.Buffer, buf *bytes.Buffer) error {
zwr, err := zstd.NewWriter(tmpbuf)
if err != nil {
return err
}
if _, err := buf.WriteTo(zwr); err != nil {
return err
}
if err := zwr.Close(); err != nil {
return err
}
return nil
}
// ## Request Compression
// Requests may be compressed by the client after they have been serialized as described in #Request-serialization. If the request was compressed, the compression algorithm must be specified in the request metadata.
// Reference: https://www.internalfb.com/intern/staticdocs/thrift/docs/fb/server/interface/#request-compression
func compressZstd(data []byte) ([]byte, error) {
z, err := zstd.NewWriter(nil)
if err != nil {
return nil, err
}
defer z.Close()
return z.EncodeAll(data, nil), nil
}
func decompressZstd(data []byte) ([]byte, error) {
z, err := zstd.NewReader(nil)
if err != nil {
return nil, err
}
defer z.Close()
return z.DecodeAll(data, nil)
}