75 lines
1.7 KiB
Go
75 lines
1.7 KiB
Go
package blobovnicza
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import (
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apistatus "github.com/nspcc-dev/neofs-sdk-go/client/status"
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oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
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"go.etcd.io/bbolt"
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"go.uber.org/zap"
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)
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// DeletePrm groups the parameters of Delete operation.
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type DeletePrm struct {
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addr oid.Address
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}
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// DeleteRes groups the resulting values of Delete operation.
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type DeleteRes struct {
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}
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// SetAddress sets the address of the requested object.
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func (p *DeletePrm) SetAddress(addr oid.Address) {
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p.addr = addr
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}
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// Delete removes an object from Blobovnicza by address.
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//
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// Returns any error encountered that
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// did not allow to completely delete the object.
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//
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// Returns an error of type apistatus.ObjectNotFound if the object to be deleted is not in blobovnicza.
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//
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// Should not be called in read-only configuration.
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func (b *Blobovnicza) Delete(prm DeletePrm) (DeleteRes, error) {
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addrKey := addressKey(prm.addr)
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removed := false
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err := b.boltDB.Update(func(tx *bbolt.Tx) error {
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return b.iterateBuckets(tx, func(lower, upper uint64, buck *bbolt.Bucket) (bool, error) {
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objData := buck.Get(addrKey)
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if objData == nil {
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// object is not in bucket => continue iterating
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return false, nil
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}
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sz := uint64(len(objData))
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// decrease fullness counter
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b.decSize(sz)
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// remove object from the bucket
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err := buck.Delete(addrKey)
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if err == nil {
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b.log.Debug("object was removed from bucket",
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zap.String("binary size", stringifyByteSize(sz)),
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zap.String("range", stringifyBounds(lower, upper)),
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)
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}
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removed = true
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// stop iteration
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return true, err
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})
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})
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if err == nil && !removed {
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var errNotFound apistatus.ObjectNotFound
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return DeleteRes{}, errNotFound
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}
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return DeleteRes{}, err
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}
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