1.4.5.2

EdgeNode/internal/compressions/writer_brotli_plus.go

@@ -0,0 +1,71 @@
+// Copyright 2023 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+//go:build plus && linux
+
+package compressions
+
+import (
+	"github.com/TeaOSLab/EdgeNode/internal/compressions/cbrotli"
+	"io"
+)
+
+const (
+	BrotliBestSpeed       = 0
+	BrotliBestCompression = 11
+
+	BrotliDefaultLGWin = 14
+)
+
+type BrotliWriter struct {
+	BaseWriter
+
+	writer *cbrotli.Writer
+
+	level int
+}
+
+func NewBrotliWriter(writer io.Writer, level int) (Writer, error) {
+	return sharedBrotliWriterPool.Get(writer, level)
+}
+
+func newBrotliWriter(writer io.Writer) (*BrotliWriter, error) {
+	var level = GenerateCompressLevel(BrotliBestSpeed, BrotliBestCompression)
+
+	return &BrotliWriter{
+		writer: cbrotli.NewWriter(writer, cbrotli.WriterOptions{
+			Quality: level,
+			LGWin:   BrotliDefaultLGWin,
+		}),
+		level: level,
+	}, nil
+}
+
+func (this *BrotliWriter) Write(p []byte) (int, error) {
+	return this.writer.Write(p)
+}
+
+func (this *BrotliWriter) Flush() error {
+	return this.writer.Flush()
+}
+
+func (this *BrotliWriter) Reset(newWriter io.Writer) {
+	_ = this.writer.Close()
+	if newWriter == nil {
+		return
+	}
+	this.writer = cbrotli.NewWriter(newWriter, cbrotli.WriterOptions{
+		Quality: this.level,
+		LGWin:   BrotliDefaultLGWin,
+	})
+}
+
+func (this *BrotliWriter) RawClose() error {
+	return this.writer.Close()
+}
+
+func (this *BrotliWriter) Close() error {
+	return this.Finish(this)
+}
+
+func (this *BrotliWriter) Level() int {
+	return this.level
+}