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
}
}
}
// Valid returns false only when an Iterator has iterated past either the
// first or the last key in the database.
func (it *Iterator) Valid() bool {
return ucharToBool(C.leveldb_iter_valid(it.Iter))
}