61 lines
1.0 KiB
Go
61 lines
1.0 KiB
Go
package splitstore
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import (
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"sync"
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cid "github.com/ipfs/go-cid"
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)
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// ObjectVisitor is an interface for deduplicating objects during walks
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type ObjectVisitor interface {
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Visit(cid.Cid) (bool, error)
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}
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type noopVisitor struct{}
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var _ ObjectVisitor = (*noopVisitor)(nil)
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func (v *noopVisitor) Visit(_ cid.Cid) (bool, error) {
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return true, nil
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}
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type tmpVisitor struct {
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set *cid.Set
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}
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var _ ObjectVisitor = (*tmpVisitor)(nil)
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func (v *tmpVisitor) Visit(c cid.Cid) (bool, error) {
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if isUnitaryObject(c) {
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return false, nil
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}
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return v.set.Visit(c), nil
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}
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func newTmpVisitor() ObjectVisitor {
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return &tmpVisitor{set: cid.NewSet()}
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}
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type concurrentVisitor struct {
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mx sync.Mutex
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set *cid.Set
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}
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var _ ObjectVisitor = (*concurrentVisitor)(nil)
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func newConcurrentVisitor() *concurrentVisitor {
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return &concurrentVisitor{set: cid.NewSet()}
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}
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func (v *concurrentVisitor) Visit(c cid.Cid) (bool, error) {
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if isUnitaryObject(c) {
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return false, nil
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}
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v.mx.Lock()
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defer v.mx.Unlock()
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return v.set.Visit(c), nil
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}
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