64 lines
1.6 KiB
Go
64 lines
1.6 KiB
Go
package pilorama
|
|
|
|
import (
|
|
"math"
|
|
|
|
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/util/logicerr"
|
|
)
|
|
|
|
// Timestamp is an alias for integer timestamp type.
|
|
// TODO: remove after the debugging.
|
|
type Timestamp = uint64
|
|
|
|
// Node is used to represent nodes.
|
|
// TODO: remove after the debugging.
|
|
type Node = uint64
|
|
|
|
// Meta represents arbitrary meta information.
|
|
// TODO: remove after the debugging or create a proper interface.
|
|
type Meta struct {
|
|
Time Timestamp
|
|
Items []KeyValue
|
|
}
|
|
|
|
// KeyValue represents a key-value pair.
|
|
type KeyValue struct {
|
|
Key string
|
|
Value []byte
|
|
}
|
|
|
|
// Move represents a single move operation.
|
|
type Move struct {
|
|
Parent Node
|
|
Meta
|
|
// Child represents the ID of a node being moved. If zero, new ID is generated.
|
|
Child Node
|
|
}
|
|
|
|
const (
|
|
// RootID represents the ID of a root node.
|
|
RootID = 0
|
|
// TrashID is a parent for all removed nodes.
|
|
TrashID = math.MaxUint64
|
|
)
|
|
|
|
var (
|
|
// ErrTreeNotFound is returned when the requested tree is not found.
|
|
ErrTreeNotFound = logicerr.New("tree not found")
|
|
// ErrNotPathAttribute is returned when the path is trying to be constructed with a non-internal
|
|
// attribute. Currently the only attribute allowed is AttributeFilename.
|
|
ErrNotPathAttribute = logicerr.New("attribute can't be used in path construction")
|
|
)
|
|
|
|
// isAttributeInternal returns true iff key can be used in `*ByPath` methods.
|
|
// For such attributes an additional index is maintained in the database.
|
|
func isAttributeInternal(key string) bool {
|
|
return key == AttributeFilename
|
|
}
|
|
|
|
type NodeInfo struct {
|
|
ID Node
|
|
Meta Meta
|
|
ParentID Node
|
|
}
|