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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,147 @@ | ||
| package iavlv2 | ||
|
|
||
| import ( | ||
| "errors" | ||
| "fmt" | ||
|
|
||
| "github.com/cosmos/iavl/v2" | ||
| ics23 "github.com/cosmos/ics23/go" | ||
|
|
||
| corestore "cosmossdk.io/core/store" | ||
| "cosmossdk.io/store/v2" | ||
| "cosmossdk.io/store/v2/commitment" | ||
| ) | ||
|
|
||
| var ( | ||
| _ commitment.Tree = (*Tree)(nil) | ||
| _ commitment.Reader = (*Tree)(nil) | ||
| _ store.PausablePruner = (*Tree)(nil) | ||
| ) | ||
|
|
||
| type Tree struct { | ||
| tree *iavl.Tree | ||
| } | ||
|
|
||
| func NewTree(treeOptions iavl.TreeOptions, dbOptions iavl.SqliteDbOptions, pool *iavl.NodePool) (*Tree, error) { | ||
| sql, err := iavl.NewSqliteDb(pool, dbOptions) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| tree := iavl.NewTree(sql, pool, treeOptions) | ||
| return &Tree{tree: tree}, nil | ||
| } | ||
|
|
||
| func (t *Tree) Set(key, value []byte) error { | ||
| _, err := t.tree.Set(key, value) | ||
| return err | ||
| } | ||
|
|
||
| func (t *Tree) Remove(key []byte) error { | ||
| _, _, err := t.tree.Remove(key) | ||
| return err | ||
| } | ||
|
|
||
| func (t *Tree) GetLatestVersion() (uint64, error) { | ||
| return uint64(t.tree.Version()), nil | ||
| } | ||
|
|
||
| func (t *Tree) Hash() []byte { | ||
| return t.tree.Hash() | ||
| } | ||
|
|
||
| func (t *Tree) Version() uint64 { | ||
| return uint64(t.tree.Version()) | ||
| } | ||
|
|
||
| func (t *Tree) LoadVersion(version uint64) error { | ||
| if err := isHighBitSet(version); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| if version == 0 { | ||
| return nil | ||
| } | ||
| return t.tree.LoadVersion(int64(version)) | ||
| } | ||
|
|
||
| func (t *Tree) Commit() ([]byte, uint64, error) { | ||
| h, v, err := t.tree.SaveVersion() | ||
| return h, uint64(v), err | ||
| } | ||
|
|
||
| func (t *Tree) SetInitialVersion(version uint64) error { | ||
| if err := isHighBitSet(version); err != nil { | ||
| return err | ||
| } | ||
| t.tree.SetShouldCheckpoint() | ||
| return t.tree.SetInitialVersion(int64(version)) | ||
| } | ||
|
|
||
| func (t *Tree) GetProof(version uint64, key []byte) (*ics23.CommitmentProof, error) { | ||
| if err := isHighBitSet(version); err != nil { | ||
| return nil, err | ||
| } | ||
| return t.tree.GetProof(int64(version), key) | ||
| } | ||
|
|
||
| func (t *Tree) Get(version uint64, key []byte) ([]byte, error) { | ||
| if err := isHighBitSet(version); err != nil { | ||
| return nil, err | ||
| } | ||
| if int64(version) != t.tree.Version() { | ||
| cloned, err := t.tree.ReadonlyClone() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| if err = cloned.LoadVersion(int64(version)); err != nil { | ||
| return nil, err | ||
| } | ||
| return cloned.Get(key) | ||
| } else { | ||
| return t.tree.Get(key) | ||
| } | ||
| } | ||
|
|
||
| func (t *Tree) Iterator(version uint64, start, end []byte, ascending bool) (corestore.Iterator, error) { | ||
| if err := isHighBitSet(version); err != nil { | ||
| return nil, err | ||
| } | ||
| if int64(version) != t.tree.Version() { | ||
| return nil, fmt.Errorf("loading past version not yet supported") | ||
| } | ||
| return t.tree.Iterator(start, end, ascending) | ||
| } | ||
|
|
||
| func (t *Tree) Export(version uint64) (commitment.Exporter, error) { | ||
| return nil, errors.New("snapshot import/export not yet supported") | ||
| } | ||
|
|
||
| func (t *Tree) Import(version uint64) (commitment.Importer, error) { | ||
| return nil, errors.New("snapshot import/export not yet supported") | ||
| } | ||
|
|
||
| func (t *Tree) Close() error { | ||
| return t.tree.Close() | ||
| } | ||
|
|
||
| func (t *Tree) Prune(version uint64) error { | ||
| if err := isHighBitSet(version); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return t.tree.DeleteVersionsTo(int64(version)) | ||
| } | ||
|
|
||
| // PausePruning is unnecessary in IAVL v2 due to the advanced pruning mechanism | ||
| func (t *Tree) PausePruning(bool) {} | ||
|
|
||
| func (t *Tree) WorkingHash() []byte { | ||
| return t.tree.Hash() | ||
| } | ||
|
|
||
| func isHighBitSet(version uint64) error { | ||
| if version&(1<<63) != 0 { | ||
| return fmt.Errorf("%d too large; uint64 with the highest bit set are not supported", version) | ||
| } | ||
| return nil | ||
| } |
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