blockchain_db: add "raw" blobdata getters for block and transaction

This speeds up operations such as serving blocks to syncing peers

1 files changed, 39 insertions, 0 deletions

diff --git a/src/blockchain_db/blockchain_db.cpp b/src/blockchain_db/blockchain_db.cpp
index 7ac046bc9..c61a81379 100644
--- a/src/blockchain_db/blockchain_db.cpp
+++ b/src/blockchain_db/blockchain_db.cpp
@@ -200,6 +200,45 @@ void BlockchainDB::remove_transaction(const crypto::hash& tx_hash)
   remove_transaction_data(tx_hash, tx);
 }
 
+block BlockchainDB::get_block_from_height(const uint64_t& height) const
+{
+  blobdata bd = get_block_blob_from_height(height);
+  block b;
+  if (!parse_and_validate_block_from_blob(bd, b))
+    throw new DB_ERROR("Failed to parse block from blob retrieved from the db");
+
+  return b;
+}
+
+block BlockchainDB::get_block(const crypto::hash& h) const
+{
+  blobdata bd = get_block_blob(h);
+  block b;
+  if (!parse_and_validate_block_from_blob(bd, b))
+    throw new DB_ERROR("Failed to parse block from blob retrieved from the db");
+
+  return b;
+}
+
+bool BlockchainDB::get_tx(const crypto::hash& h, cryptonote::transaction &tx) const
+{
+  blobdata bd;
+  if (!get_tx_blob(h, bd))
+    return false;
+  if (!parse_and_validate_tx_from_blob(bd, tx))
+    throw new DB_ERROR("Failed to parse transaction from blob retrieved from the db");
+
+  return true;
+}
+
+transaction BlockchainDB::get_tx(const crypto::hash& h) const
+{
+  transaction tx;
+  if (!get_tx(h, tx))
+    throw new TX_DNE(std::string("tx with hash ").append(epee::string_tools::pod_to_hex(h)).append(" not found in db").c_str());
+  return tx;
+}
+
 void BlockchainDB::reset_stats()
 {
   num_calls = 0;