61 lines
1.6 KiB
Go
61 lines
1.6 KiB
Go
package commitment
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import (
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"errors"
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"io"
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ics23 "github.com/cosmos/ics23/go"
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corestore "cosmossdk.io/core/store"
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snapshotstypes "cosmossdk.io/store/v2/snapshots/types"
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)
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// ErrorExportDone is returned by Exporter.Next() when all items have been exported.
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var ErrorExportDone = errors.New("export is complete")
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// Tree is the interface that wraps the basic Tree methods.
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type Tree interface {
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Set(key, value []byte) error
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Remove(key []byte) error
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GetLatestVersion() (uint64, error)
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// Hash returns the hash of the current version of the tree
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Hash() []byte
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// Version returns the current version of the tree
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Version() uint64
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LoadVersion(version uint64) error
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LoadVersionForOverwriting(version uint64) error
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Commit() ([]byte, uint64, error)
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SetInitialVersion(version uint64) error
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GetProof(version uint64, key []byte) (*ics23.CommitmentProof, error)
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Prune(version uint64) error
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Export(version uint64) (Exporter, error)
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Import(version uint64) (Importer, error)
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io.Closer
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}
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// Reader is the optional interface that is only used to read data from the tree
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// during the migration process.
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type Reader interface {
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Get(version uint64, key []byte) ([]byte, error)
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Iterator(version uint64, start, end []byte, ascending bool) (corestore.Iterator, error)
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}
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// Exporter is the interface that wraps the basic Export methods.
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type Exporter interface {
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Next() (*snapshotstypes.SnapshotIAVLItem, error)
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io.Closer
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}
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// Importer is the interface that wraps the basic Import methods.
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type Importer interface {
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Add(*snapshotstypes.SnapshotIAVLItem) error
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Commit() error
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io.Closer
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}
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