diff options
Diffstat (limited to 'vendor/github.com/klauspost/compress/zstd/framedec.go')
| -rw-r--r-- | vendor/github.com/klauspost/compress/zstd/framedec.go | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/vendor/github.com/klauspost/compress/zstd/framedec.go b/vendor/github.com/klauspost/compress/zstd/framedec.go index cda590b5f..780880ebe 100644 --- a/vendor/github.com/klauspost/compress/zstd/framedec.go +++ b/vendor/github.com/klauspost/compress/zstd/framedec.go @@ -16,16 +16,11 @@ import ( ) type frameDec struct { - o decoderOptions - crc hash.Hash64 - frameDone sync.WaitGroup - offset int64 + o decoderOptions + crc hash.Hash64 + offset int64 - WindowSize uint64 - DictionaryID uint32 - FrameContentSize uint64 - HasCheckSum bool - SingleSegment bool + WindowSize uint64 // maxWindowSize is the maximum windows size to support. // should never be bigger than max-int. @@ -42,9 +37,16 @@ type frameDec struct { // Byte buffer that can be reused for small input blocks. bBuf byteBuf + FrameContentSize uint64 + frameDone sync.WaitGroup + + DictionaryID uint32 + HasCheckSum bool + SingleSegment bool + // asyncRunning indicates whether the async routine processes input on 'decoding'. - asyncRunning bool asyncRunningMu sync.Mutex + asyncRunning bool } const ( @@ -231,7 +233,11 @@ func (d *frameDec) reset(br byteBuffer) error { return ErrWindowSizeTooSmall } d.history.windowSize = int(d.WindowSize) - d.history.maxSize = d.history.windowSize + maxBlockSize + if d.o.lowMem && d.history.windowSize < maxBlockSize { + d.history.maxSize = d.history.windowSize * 2 + } else { + d.history.maxSize = d.history.windowSize + maxBlockSize + } // history contains input - maybe we do something d.rawInput = br return nil @@ -318,8 +324,8 @@ func (d *frameDec) checkCRC() error { func (d *frameDec) initAsync() { if !d.o.lowMem && !d.SingleSegment { - // set max extra size history to 20MB. - d.history.maxSize = d.history.windowSize + maxBlockSize*10 + // set max extra size history to 10MB. + d.history.maxSize = d.history.windowSize + maxBlockSize*5 } // re-alloc if more than one extra block size. if d.o.lowMem && cap(d.history.b) > d.history.maxSize+maxBlockSize { |