66 lines
1.9 KiB
Go
66 lines
1.9 KiB
Go
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package core
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import (
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ethdb "github.com/ethereum/go-ethereum/ethdb"
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dbm "github.com/tendermint/tendermint/libs/db"
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)
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// EthereumDB implements Ethereum's ethdb.Database and ethdb.Batch interfaces.
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// It will be used to facilitate persistence of codeHash => code mappings.
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type EthereumDB struct {
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codeDB dbm.DB
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}
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// Put implements Ethereum's ethdb.Putter interface. It wraps the database
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// write operation supported by both batches and regular databases.
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func (edb *EthereumDB) Put(key []byte, value []byte) error {
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edb.codeDB.Set(key, value)
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return nil
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}
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// Get implements Ethereum's ethdb.Database interface. It returns a value for a
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// given key.
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func (edb *EthereumDB) Get(key []byte) ([]byte, error) {
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return edb.codeDB.Get(key), nil
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}
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// Has implements Ethereum's ethdb.Database interface. It returns a boolean
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// determining if the underlying database has the given key or not.
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func (edb *EthereumDB) Has(key []byte) (bool, error) {
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return edb.codeDB.Has(key), nil
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}
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// Delete implements Ethereum's ethdb.Database interface. It removes a given
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// key from the underlying database.
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func (edb *EthereumDB) Delete(key []byte) error {
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edb.codeDB.Delete(key)
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return nil
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}
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// Close implements Ethereum's ethdb.Database interface. It closes the
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// underlying database.
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func (edb *EthereumDB) Close() {
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edb.codeDB.Close()
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}
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// NewBatch implements Ethereum's ethdb.Database interface. It returns a new
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// Batch object used for batch database operations.
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func (edb *EthereumDB) NewBatch() ethdb.Batch {
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return edb
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}
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// ValueSize implements Ethereum's ethdb.Database interface. It performs a
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// no-op.
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func (edb *EthereumDB) ValueSize() int {
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return 0
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}
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// Write implements Ethereum's ethdb.Database interface. It performs a no-op.
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func (edb *EthereumDB) Write() error {
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return nil
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}
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// Reset implements Ethereum's ethdb.Database interface. It performs a no-op.
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func (edb *EthereumDB) Reset() {
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}
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