1 // Copyright (c) 2015-2016 The btcsuite developers
2 // Use of this source code is governed by an ISC
3 // license that can be found in the LICENSE file.
10 "github.com/btcsuite/btcd/database"
11 "github.com/btcsuite/btcd/wire"
12 "github.com/btcsuite/btclog"
15 var log = btclog.Disabled
21 // parseArgs parses the arguments from the database Open/Create methods.
22 func parseArgs(funcName string, args ...interface{}) (string, wire.BitcoinNet, error) {
24 return "", 0, fmt.Errorf("invalid arguments to %s.%s -- "+
25 "expected database path and block network", dbType,
29 dbPath, ok := args[0].(string)
31 return "", 0, fmt.Errorf("first argument to %s.%s is invalid -- "+
32 "expected database path string", dbType, funcName)
35 network, ok := args[1].(wire.BitcoinNet)
37 return "", 0, fmt.Errorf("second argument to %s.%s is invalid -- "+
38 "expected block network", dbType, funcName)
41 return dbPath, network, nil
44 // openDBDriver is the callback provided during driver registration that opens
45 // an existing database for use.
46 func openDBDriver(args ...interface{}) (database.DB, error) {
47 dbPath, network, err := parseArgs("Open", args...)
52 return openDB(dbPath, network, false)
55 // createDBDriver is the callback provided during driver registration that
56 // creates, initializes, and opens a database for use.
57 func createDBDriver(args ...interface{}) (database.DB, error) {
58 dbPath, network, err := parseArgs("Create", args...)
63 return openDB(dbPath, network, true)
66 // useLogger is the callback provided during driver registration that sets the
67 // current logger to the provided one.
68 func useLogger(logger btclog.Logger) {
73 // Register the driver.
74 driver := database.Driver{
76 Create: createDBDriver,
80 if err := database.RegisterDriver(driver); err != nil {
81 panic(fmt.Sprintf("Failed to regiser database driver '%s': %v",