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.
35 lines
694 B
35 lines
694 B
package metastore
|
|
|
|
import (
|
|
"code.google.com/p/weed-fs/go/util"
|
|
"errors"
|
|
"path"
|
|
)
|
|
|
|
type MetaStoreBacking interface {
|
|
Get(elem ...string) ([]byte, error)
|
|
Set(val []byte, elem ...string) error
|
|
Has(elem ...string) bool
|
|
}
|
|
|
|
type MetaStore struct {
|
|
MetaStoreBacking
|
|
}
|
|
|
|
func (m *MetaStore) SetUint64(val uint64, elem ...string) error {
|
|
b := make([]byte, 8)
|
|
util.Uint64toBytes(b, val)
|
|
return m.Set(b, elem...)
|
|
}
|
|
|
|
func (m *MetaStore) GetUint64(elem ...string) (val uint64, err error) {
|
|
if b, e := m.Get(elem...); e == nil && len(b) == 8 {
|
|
val = util.BytesToUint64(b)
|
|
} else {
|
|
if e != nil {
|
|
return 0, e
|
|
}
|
|
err = errors.New("Not found value for " + path.Join(elem...))
|
|
}
|
|
return
|
|
}
|