def save(self, s: AbstractIO):
initpos = s.pos()
s.add_uint(0)
s.add_int(len(self.entries))
s.add_int(self._el_size)
datapos = s.pos()
for entry in self.entries:
s.add(entry)
tablepos = s.pos()
s.seek(initpos)
s.add_uint(tablepos)
s.seek(tablepos)
for i in range(len(self.entries)):
offset = 0 if i == 0 else len(self.entries[i - 1])
s.add_uint(datapos + offset)
number = len(self.entries[i]) // self._el_size
s.add_int(number)
s.add_int(number)
def load(self, s: AbstractIO, size: int):
initpos = s.pos()
header = _header(s.get_uint(), s.get_int(), s.get_int())
for i in range(header.arrays_number):
header_size = 4 * 3 # uint, uint, int
offset = initpos + header.alloc_table_offset + i * header_size
s.seek(offset)
entry = _table_entry(
s.get_uint(),
s.get_int(),
s.get_int(),
)
start = initpos + entry.offset
length = header.element_type_size * entry.number
s.seek(start)
self.entries.append(s.get(length))
endpos = initpos + size
s.seek(endpos)