42 lines
1.0 KiB
Go
42 lines
1.0 KiB
Go
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package store
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import (
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"github.com/tendermint/iavl"
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)
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// Implements IterKVStore
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type IAVLStore struct {
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//
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}
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// XXX GUT THIS AND TURN IT INTO AN IAVLSTORE LOADER
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func loadState(dbName string, cacheSize int) (*sm.State, error) {
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// memory backed case, just for testing
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if dbName == "" {
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tree := iavl.NewVersionedTree(0, dbm.NewMemDB())
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return sm.NewState(tree), nil
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}
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// Expand the path fully
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dbPath, err := filepath.Abs(dbName)
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if err != nil {
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return nil, errors.ErrInternal("Invalid Database Name")
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}
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// Some external calls accidently add a ".db", which is now removed
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dbPath = strings.TrimSuffix(dbPath, path.Ext(dbPath))
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// Split the database name into it's components (dir, name)
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dir := path.Dir(dbPath)
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name := path.Base(dbPath)
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// Open database called "dir/name.db", if it doesn't exist it will be created
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db := dbm.NewDB(name, dbm.LevelDBBackendStr, dir)
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tree := iavl.NewVersionedTree(cacheSize, db)
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if err = tree.Load(); err != nil {
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return nil, errors.ErrInternal("Loading tree: " + err.Error())
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}
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return sm.NewState(tree), nil
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}
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