1.4.5.2

EdgeNode/internal/compressions/writer_brotli.go

@@ -0,0 +1,55 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+//go:build !plus || !linux
+
+package compressions
+
+import (
+	"github.com/andybalholm/brotli"
+	"io"
+)
+
+type BrotliWriter struct {
+	BaseWriter
+
+	writer *brotli.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(brotli.BestSpeed, brotli.BestCompression)
+	return &BrotliWriter{
+		writer: brotli.NewWriterOptions(writer, brotli.WriterOptions{
+			Quality: level,
+			LGWin:   14, // TODO 在全局设置里可以设置此值
+		}),
+		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.Reset(newWriter)
+}
+
+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
+}