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优化代码

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This commit is contained in:
刘祥超
2022-11-08 20:58:17 +08:00
parent e4b2a650f0
commit 6c457f41f6
1 changed files with 21 additions and 15 deletions
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36
internal/nodes/http_request_cache.go
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@@ -295,17 +295,13 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
}
}
var pool = this.bytePool(fileSize)
var buf = pool.Get()
defer func() {
pool.Put(buf)
}()
// 读取Header
var headerData = []byte{}
this.writer.SetSentHeaderBytes(reader.HeaderSize())
err = reader.ReadHeader(buf, func(n int) (goNext bool, err error) {
headerData = append(headerData, buf[:n]...)
var headerPool = this.bytePool(reader.HeaderSize())
var headerBuf = headerPool.Get()
err = reader.ReadHeader(headerBuf, func(n int) (goNext bool, err error) {
headerData = append(headerData, headerBuf[:n]...)
for {
nIndex := bytes.Index(headerData, []byte{'\n'})
if nIndex >= 0 {
@@ -323,6 +319,7 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
}
return true, nil
})
headerPool.Put(headerBuf)
if err != nil {
if !this.canIgnore(err) {
remotelogs.WarnServer("HTTP_REQUEST_CACHE", this.URL()+": read from cache failed: read header failed: "+err.Error())
@@ -460,13 +457,16 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
respHeader.Set("Content-Length", strconv.FormatInt(ranges[0].Length(), 10))
this.writer.WriteHeader(http.StatusPartialContent)
err = reader.ReadBodyRange(buf, ranges[0].Start(), ranges[0].End(), func(n int) (goNext bool, err error) {
_, err = this.writer.Write(buf[:n])
var pool = this.bytePool(fileSize)
var bodyBuf = pool.Get()
err = reader.ReadBodyRange(bodyBuf, ranges[0].Start(), ranges[0].End(), func(n int) (goNext bool, err error) {
_, err = this.writer.Write(bodyBuf[:n])
if err != nil {
return false, errWritingToClient
}
return true, nil
})
pool.Put(bodyBuf)
if err != nil {
this.varMapping["cache.status"] = "MISS"
@@ -513,13 +513,16 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
}
}
err := reader.ReadBodyRange(buf, r.Start(), r.End(), func(n int) (goNext bool, err error) {
_, err = this.writer.Write(buf[:n])
var pool = this.bytePool(fileSize)
var bodyBuf = pool.Get()
err := reader.ReadBodyRange(bodyBuf, r.Start(), r.End(), func(n int) (goNext bool, err error) {
_, err = this.writer.Write(bodyBuf[:n])
if err != nil {
return false, errWritingToClient
}
return true, nil
})
pool.Put(bodyBuf)
if err != nil {
if !this.canIgnore(err) {
remotelogs.WarnServer("HTTP_REQUEST_CACHE", this.URL()+": read from cache failed: "+err.Error())
@@ -543,15 +546,18 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
this.writer.Prepare(resp, fileSize, reader.Status(), false)
this.writer.WriteHeader(reader.Status())
var pool = this.bytePool(fileSize)
var bodyBuf = pool.Get()
if storage.CanSendfile() {
if fp, canSendFile := this.writer.canSendfile(); canSendFile {
this.writer.sentBodyBytes, err = io.CopyBuffer(this.writer.rawWriter, fp, buf)
this.writer.sentBodyBytes, err = io.CopyBuffer(this.writer.rawWriter, fp, bodyBuf)
} else {
_, err = io.CopyBuffer(this.writer, resp.Body, buf)
_, err = io.CopyBuffer(this.writer, resp.Body, bodyBuf)
}
} else {
_, err = io.CopyBuffer(this.writer, resp.Body, buf)
_, err = io.CopyBuffer(this.writer, resp.Body, bodyBuf)
}
pool.Put(bodyBuf)
if err == io.EOF {
err = nil
}