bool Msg::read_from(BlockReader& reader)
{
if (!reader.readUInt8((uint8_t*)&type)) return false;
if (!reader.readSlice(key)) return false;
if (type == Put) {
if (!reader.readSlice(value)) return false;
}
return true;
}
bool InnerNode::read_from(BlockReader& reader, bool skeleton_only)
{
if (!reader.readBool(&bottom_)) return false;
uint32_t pn;
if (!reader.readUInt32(&pn)) return false;
pivots_.resize(pn);
if (!reader.readUInt64(&first_child_)) return false;
if (!reader.readUInt32(&first_msgbuf_offset_)) return false;
if (!reader.readUInt32(&first_msgbuf_length_)) return false;
if (!reader.readUInt32(&first_msgbuf_uncompressed_length_)) return false;
for (size_t i = 0; i < pn; i++) {
if (!reader.readSlice(pivots_[i].key)) return false;
pivots_sz_ += pivot_size(pivots_[i].key);
if (!reader.readUInt64(&(pivots_[i].child))) return false;
pivots_[i].msgbuf = NULL; // unloaded
if (!reader.readUInt32(&(pivots_[i].offset))) return false;
if (!reader.readUInt32(&(pivots_[i].length))) return false;
if (!reader.readUInt32(&(pivots_[i].uncompressed_length))) return false;
}
if (!skeleton_only) {
if (!load_all_msgbuf(reader)) return false;
} else {
status_ = kSkeletonLoaded;
}
return true;
}
bool LeafNode::read_buckets_info(BlockReader& reader)
{
uint32_t nbuckets;
if (!reader.readUInt32(&nbuckets)) return false;
buckets_info_.resize(nbuckets);
buckets_info_size_ = 4;
for (size_t i = 0; i < nbuckets; i++ ) {
if (!reader.readSlice(buckets_info_[i].key)) return false;
if (!reader.readUInt32(&(buckets_info_[i].offset))) return false;
if (!reader.readUInt32(&(buckets_info_[i].length))) return false;
if (!reader.readUInt32(&(buckets_info_[i].uncompressed_length))) return false;
buckets_info_size_ += 4 + buckets_info_[i].key.size() + 4 + 4 + 4;
}
// init buckets number
records_.set_buckets_number(nbuckets);
status_ = kSkeletonLoaded;
return true;
}