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https://github.com/TeaOSLab/EdgeNode.git
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005e27a63c
* 取消用户设置的压缩级别，现在压缩级别通过系统自动设置 * Pool中的对象命中100万次时自动销毁，避免内存泄漏 * 降低Pool中的对象数量，避免占用太多内存 * 根据系统CPU线程数自动计算压缩级别，避免消耗太多CPU * zstd限制解码的最大Window * zstd使用低内存模式
58 lines
1.1 KiB
Go
58 lines
1.1 KiB
Go
// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
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package compressions
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import (
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"github.com/klauspost/compress/gzip"
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"io"
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)
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type GzipWriter struct {
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BaseWriter
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writer *gzip.Writer
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level int
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}
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func NewGzipWriter(writer io.Writer, level int) (Writer, error) {
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return sharedGzipWriterPool.Get(writer, level)
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}
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func newGzipWriter(writer io.Writer) (Writer, error) {
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var level = GenerateCompressLevel(gzip.BestSpeed, gzip.BestCompression)
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gzipWriter, err := gzip.NewWriterLevel(writer, level)
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if err != nil {
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return nil, err
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}
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return &GzipWriter{
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writer: gzipWriter,
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level: level,
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}, nil
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}
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func (this *GzipWriter) Write(p []byte) (int, error) {
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return this.writer.Write(p)
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}
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func (this *GzipWriter) Flush() error {
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return this.writer.Flush()
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}
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func (this *GzipWriter) Reset(writer io.Writer) {
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this.writer.Reset(writer)
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}
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func (this *GzipWriter) RawClose() error {
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return this.writer.Close()
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}
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func (this *GzipWriter) Close() error {
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return this.Finish(this)
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}
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func (this *GzipWriter) Level() int {
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return this.level
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}
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