BUFFER_LIMIT_FOR_32_BIT
while (sz > BUFFER_LIMIT_FOR_32_BIT) {
b->size = BUFFER_LIMIT_FOR_32_BIT;
buffer->data_offset += BUFFER_LIMIT_FOR_32_BIT;
sz -= BUFFER_LIMIT_FOR_32_BIT;
buffer->size > BUFFER_LIMIT_FOR_32_BIT) {