frostfs-node/pkg/local_object_storage/writecache/delete.go

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package writecache
import (
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
storagelog "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/internal/log"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
"go.etcd.io/bbolt"
)
// Delete removes object from write-cache.
//
// Returns an error of type apistatus.ObjectNotFound if object is missing in write-cache.
func (c *cache) Delete(addr oid.Address) error {
c.modeMtx.RLock()
defer c.modeMtx.RUnlock()
if c.readOnly() {
return ErrReadOnly
}
saddr := addr.EncodeToString()
// Check disk cache.
var has int
_ = c.db.View(func(tx *bbolt.Tx) error {
b := tx.Bucket(defaultBucket)
has = len(b.Get([]byte(saddr)))
return nil
})
if 0 < has {
err := c.db.Update(func(tx *bbolt.Tx) error {
b := tx.Bucket(defaultBucket)
err := b.Delete([]byte(saddr))
return err
})
if err != nil {
return err
}
storagelog.Write(c.log,
storagelog.AddressField(saddr),
storagelog.StorageTypeField(wcStorageType),
storagelog.OpField("db DELETE"),
)
c.objCounters.DecDB()
return nil
}
_, err := c.fsTree.Delete(common.DeletePrm{Address: addr})
if err == nil {
storagelog.Write(c.log,
storagelog.AddressField(saddr),
storagelog.StorageTypeField(wcStorageType),
storagelog.OpField("fstree DELETE"),
)
c.objCounters.DecFS()
}
return err
}