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feat(alias): add DownloadConcurrency and DownloadPartSize option (#7829)

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* fix(net): goroutine logic bug (AlistGo/alist#7215)

* Fix goroutine logic bug

* Fix bug

---------

Co-authored-by: hpy hs <hshpy.pengyu@gmail.com>

* perf(net): sequential and dynamic concurrency

* fix(net): incorrect error return

* feat(alias):  add `DownloadConcurrency` and `DownloadPartSize` option

* feat(net): add `ConcurrencyLimit`

* pref(net): create `chunk` on demand

* refactor

* refactor

* fix(net): `r.Closers.Add` has no effect

* refactor

---------

Co-authored-by: hpy hs <hshpy.pengyu@gmail.com>
This commit is contained in:
j2rong4cn
2025-01-27 20:08:39 +08:00
committed by GitHub
parent bdcf450203
commit 2be0c3d1a0
24 changed files with 396 additions and 238 deletions
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5
internal/stream/stream.go
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@ -122,7 +122,8 @@ const InMemoryBufMaxSizeBytes = InMemoryBufMaxSize * 1024 * 1024
// also support a peeking RangeRead at very start, but won't buffer more than 10MB data in memory
func (f *FileStream) RangeRead(httpRange http_range.Range) (io.Reader, error) {
if httpRange.Length == -1 {
httpRange.Length = f.GetSize()
// 参考 internal/net/request.go
httpRange.Length = f.GetSize() - httpRange.Start
}
if f.peekBuff != nil && httpRange.Start < int64(f.peekBuff.Len()) && httpRange.Start+httpRange.Length-1 < int64(f.peekBuff.Len()) {
return io.NewSectionReader(f.peekBuff, httpRange.Start, httpRange.Length), nil
@ -210,7 +211,7 @@ func NewSeekableStream(fs FileStream, link *model.Link) (*SeekableStream, error)
// RangeRead is not thread-safe, pls use it in single thread only.
func (ss *SeekableStream) RangeRead(httpRange http_range.Range) (io.Reader, error) {
if httpRange.Length == -1 {
httpRange.Length = ss.GetSize()
httpRange.Length = ss.GetSize() - httpRange.Start
}
if ss.mFile != nil {
return io.NewSectionReader(ss.mFile, httpRange.Start, httpRange.Length), nil