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Fix race condition in scanner

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This commit is contained in:
Deluan 2022-11-29 11:08:47 -05:00
parent 10cd3152ba
commit d8c5944ef1
1 changed files with 3 additions and 10 deletions
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13
scanner/scanner.go
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@ -12,13 +12,11 @@ import (
"github.com/navidrome/navidrome/log"
"github.com/navidrome/navidrome/model"
"github.com/navidrome/navidrome/server/events"
"github.com/navidrome/navidrome/utils"
)
type Scanner interface {
RescanAll(ctx context.Context, fullRescan bool) error
Status(mediaFolder string) (*StatusInfo, error)
Scanning() bool
}
type StatusInfo struct {
@ -39,7 +37,7 @@ type FolderScanner interface {
Scan(ctx context.Context, lastModifiedSince time.Time, progress chan uint32) (int64, error)
}
var isScanning utils.AtomicBool
var isScanning sync.Mutex
type scanner struct {
folders map[string]FolderScanner
@ -139,12 +137,11 @@ func (s *scanner) startProgressTracker(mediaFolder string) (chan uint32, context
}
func (s *scanner) RescanAll(ctx context.Context, fullRescan bool) error {
if s.Scanning() {
if !isScanning.TryLock() {
log.Debug("Scanner already running, ignoring request for rescan.")
return ErrAlreadyScanning
}
isScanning.Set(true)
defer isScanning.Set(false)
defer isScanning.Unlock()
defer s.cacheWarmer.Flush(ctx)
var hasError bool
@ -199,10 +196,6 @@ func (s *scanner) setStatusEnd(folder string, lastUpdate time.Time) {
}
}
func (s *scanner) Scanning() bool {
return isScanning.Get()
}
func (s *scanner) Status(mediaFolder string) (*StatusInfo, error) {
status := s.getStatus(mediaFolder)
if status == nil {