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Reuse buffer in worker functions

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This commit is contained in:
Alexander Neumann
2019-03-24 22:12:38 +01:00
parent d51e9d1b98
commit 66efa425bf
3 changed files with 20 additions and 14 deletions
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7
internal/checker/checker.go
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@@ -108,14 +108,17 @@ func (c *Checker) LoadIndex(ctx context.Context) (hints []error, errs []error) {
// a worker receives an index ID from ch, loads the index, and sends it to indexCh
worker := func() error {
var buf []byte
for fi := range ch {
debug.Log("worker got file %v", fi.ID.Str())
idx, err := repository.LoadIndexWithDecoder(ctx, c.repo, fi.ID, repository.DecodeIndex)
var err error
var idx *repository.Index
idx, buf, err = repository.LoadIndexWithDecoder(ctx, c.repo, buf[:0], fi.ID, repository.DecodeIndex)
if errors.Cause(err) == repository.ErrOldIndexFormat {
debug.Log("index %v has old format", fi.ID.Str())
hints = append(hints, ErrOldIndexFormat{fi.ID})
idx, err = repository.LoadIndexWithDecoder(ctx, c.repo, fi.ID, repository.DecodeOldIndex)
idx, buf, err = repository.LoadIndexWithDecoder(ctx, c.repo, buf[:0], fi.ID, repository.DecodeOldIndex)
}
err = errors.Wrapf(err, "error loading index %v", fi.ID.Str())