VictoriaMetrics/lib/protoparser/common/gzip_reader.go
2020-02-23 17:31:54 +02:00

32 lines
625 B
Go

package common
import (
"io"
"sync"
"github.com/klauspost/compress/gzip"
)
// GetGzipReader returns new gzip reader from the pool.
//
// Return back the gzip reader when it no longer needed with PutGzipReader.
func GetGzipReader(r io.Reader) (*gzip.Reader, error) {
v := gzipReaderPool.Get()
if v == nil {
return gzip.NewReader(r)
}
zr := v.(*gzip.Reader)
if err := zr.Reset(r); err != nil {
return nil, err
}
return zr, nil
}
// PutGzipReader returns back gzip reader obtained via GetGzipReader.
func PutGzipReader(zr *gzip.Reader) {
_ = zr.Close()
gzipReaderPool.Put(zr)
}
var gzipReaderPool sync.Pool