lbcwallet/walletdb/bdb/driver.go
Wilmer Paulino 81797fe29d
multi: extend walletdb bolt driver with NoFreelistSync option
This allows external callers to set the option instead. All tests
remained with the option enabled.
2019-10-03 13:28:04 -04:00

75 lines
1.9 KiB
Go

// Copyright (c) 2014 The btcsuite developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package bdb
import (
"fmt"
"github.com/btcsuite/btcwallet/walletdb"
)
const (
dbType = "bdb"
)
// parseArgs parses the arguments from the walletdb Open/Create methods.
func parseArgs(funcName string, args ...interface{}) (string, bool, error) {
if len(args) != 2 {
return "", false, fmt.Errorf("invalid arguments to %s.%s -- "+
"expected database path and no-freelist-sync option",
dbType, funcName)
}
dbPath, ok := args[0].(string)
if !ok {
return "", false, fmt.Errorf("first argument to %s.%s is "+
"invalid -- expected database path string", dbType,
funcName)
}
noFreelistSync, ok := args[1].(bool)
if !ok {
return "", false, fmt.Errorf("second argument to %s.%s is "+
"invalid -- expected no-freelist-sync bool", dbType,
funcName)
}
return dbPath, noFreelistSync, nil
}
// openDBDriver is the callback provided during driver registration that opens
// an existing database for use.
func openDBDriver(args ...interface{}) (walletdb.DB, error) {
dbPath, noFreelistSync, err := parseArgs("Open", args...)
if err != nil {
return nil, err
}
return openDB(dbPath, noFreelistSync, false)
}
// createDBDriver is the callback provided during driver registration that
// creates, initializes, and opens a database for use.
func createDBDriver(args ...interface{}) (walletdb.DB, error) {
dbPath, noFreelistSync, err := parseArgs("Create", args...)
if err != nil {
return nil, err
}
return openDB(dbPath, noFreelistSync, true)
}
func init() {
// Register the driver.
driver := walletdb.Driver{
DbType: dbType,
Create: createDBDriver,
Open: openDBDriver,
}
if err := walletdb.RegisterDriver(driver); err != nil {
panic(fmt.Sprintf("Failed to regiser database driver '%s': %v",
dbType, err))
}
}