You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
36 lines
884 B
36 lines
884 B
package db
|
|
|
|
import "fmt"
|
|
|
|
//----------------------------------------
|
|
// Main entry
|
|
|
|
type dbBackendType string
|
|
|
|
const (
|
|
LevelDBBackend dbBackendType = "leveldb" // legacy, defaults to goleveldb unless +gcc
|
|
CLevelDBBackend dbBackendType = "cleveldb"
|
|
GoLevelDBBackend dbBackendType = "goleveldb"
|
|
MemDBBackend dbBackendType = "memdb"
|
|
FSDBBackend dbBackendType = "fsdb" // using the filesystem naively
|
|
)
|
|
|
|
type dbCreator func(name string, dir string) (DB, error)
|
|
|
|
var backends = map[dbBackendType]dbCreator{}
|
|
|
|
func registerDBCreator(backend dbBackendType, creator dbCreator, force bool) {
|
|
_, ok := backends[backend]
|
|
if !force && ok {
|
|
return
|
|
}
|
|
backends[backend] = creator
|
|
}
|
|
|
|
func NewDB(name string, backend dbBackendType, dir string) DB {
|
|
db, err := backends[backend](name, dir)
|
|
if err != nil {
|
|
panic(fmt.Sprintf("Error initializing DB: %v", err))
|
|
}
|
|
return db
|
|
}
|