func (it *Iterator) Key() []byte {
var klen C.size_t
kdata := C.leveldb_iter_key(it.it, &klen)
if kdata == nil {
return nil
}
return slice(unsafe.Pointer(kdata), int(C.int(klen)))
}
// Key returns a copy the key in the database the iterator currently holds.
//
// If Valid returns false, this method will panic.
func (it *Iterator) Key() []byte {
var klen C.size_t
kdata := C.leveldb_iter_key(it.Iter, &klen)
if kdata == nil {
return nil
}
// Unlike DB.Get, the key, kdata, returned is not meant to be freed by the
// client. It's a direct reference to data managed by the iterator_t
// instead of a copy. So, we must not free it here but simply copy it
// with GoBytes.
return C.GoBytes(unsafe.Pointer(kdata), C.int(klen))
}
func (self *Leveldb) Iter(fun func(string, Getter) bool) {
iterator := C.leveldb_create_iterator(self.cdb, self.read_options)
defer C.leveldb_iter_destroy(iterator)
var keyLen C.size_t
var keyValue *C.char
var valueLen C.size_t
var valueValue *C.char
var ret bool
for C.leveldb_iter_seek_to_first(iterator); C.leveldb_iter_valid(iterator) != levelFalse; C.leveldb_iter_next(iterator) {
keyValue = C.leveldb_iter_key(iterator, &keyLen)
key := string(C.GoBytes(unsafe.Pointer(keyValue), C.int(keyLen)))
valueValue = C.leveldb_iter_value(iterator, &valueLen)
value := C.GoBytes(unsafe.Pointer(valueValue), C.int(valueLen))
r := bytes.NewReader(value)
ret = fun(key, func(e interface{}) error {
return decode(r, e)
})
if ret == false {
break
}
}
}
// Key() returns a copy the key in the database the iterator currently holds.
//
// If Valid() returns false, this method will panic.
func (it *Iterator) Key() []byte {
var klen C.size_t
kdata := C.leveldb_iter_key(it.Iter, &klen)
return C.GoBytes(unsafe.Pointer(kdata), C.int(klen))
}