mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-08-28 20:50:48 +02:00
54 lines
901 B
Go
54 lines
901 B
Go
package util
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import (
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"compress/gzip"
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"fmt"
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"io"
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"sync"
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)
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var (
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gzipReaderPool = sync.Pool{
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New: func() interface{} {
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return new(gzip.Reader)
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//return gzip.NewReader()
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},
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}
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gzipWriterPool = sync.Pool{
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New: func() interface{} {
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w, _ := gzip.NewWriterLevel(nil, gzip.BestSpeed)
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return w
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},
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}
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)
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func GzipStream(w io.Writer, r io.Reader) (int64, error) {
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gw, ok := gzipWriterPool.Get().(*gzip.Writer)
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if !ok {
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return 0, fmt.Errorf("gzip: new writer error")
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}
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gw.Reset(w)
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defer func() {
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gw.Close()
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gzipWriterPool.Put(gw)
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}()
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return io.Copy(gw, r)
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}
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func GunzipStream(w io.Writer, r io.Reader) (int64, error) {
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gr, ok := gzipReaderPool.Get().(*gzip.Reader)
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if !ok {
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return 0, fmt.Errorf("gzip: new reader error")
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}
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if err := gr.Reset(r); err != nil {
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return 0, err
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}
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defer func() {
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gr.Close()
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gzipReaderPool.Put(gr)
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}()
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return io.Copy(w, gr)
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}
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