forked from cerc-io/plugeth
53 lines
2.0 KiB
Go
53 lines
2.0 KiB
Go
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// Copyright 2018 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package rawdb
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import (
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/ethdb/leveldb"
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"github.com/ethereum/go-ethereum/ethdb/memorydb"
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)
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// NewDatabase creates a high level database on top of a given key-value data
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// store without a freezer moving immutable chain segments into cold storage.
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func NewDatabase(db ethdb.KeyValueStore) ethdb.Database {
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return db
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}
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// NewMemoryDatabase creates an ephemeral in-memory key-value database without a
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// freezer moving immutable chain segments into cold storage.
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func NewMemoryDatabase() ethdb.Database {
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return NewDatabase(memorydb.New())
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}
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// NewMemoryDatabaseWithCap creates an ephemeral in-memory key-value database with
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// an initial starting capacity, but without a freezer moving immutable chain
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// segments into cold storage.
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func NewMemoryDatabaseWithCap(size int) ethdb.Database {
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return NewDatabase(memorydb.NewWithCap(size))
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}
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// NewLevelDBDatabase creates a persistent key-value database without a freezer
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// moving immutable chain segments into cold storage.
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func NewLevelDBDatabase(file string, cache int, handles int, namespace string) (ethdb.Database, error) {
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db, err := leveldb.New(file, cache, handles, namespace)
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if err != nil {
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return nil, err
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}
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return NewDatabase(db), nil
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}
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