blockchain sync: reduce disk writes from 2 to 1 per tx

3 files changed, 17 insertions, 1 deletions

diff --git a/src/cryptonote_basic/cryptonote_format_utils.cpp b/src/cryptonote_basic/cryptonote_format_utils.cpp
index e6e424c71..2bade9659 100644
--- a/src/cryptonote_basic/cryptonote_format_utils.cpp
+++ b/src/cryptonote_basic/cryptonote_format_utils.cpp
@@ -257,6 +257,7 @@ namespace cryptonote
     CHECK_AND_ASSERT_MES(r, false, "Failed to parse transaction from blob");
     CHECK_AND_ASSERT_MES(expand_transaction_1(tx, false), false, "Failed to expand transaction data");
     tx.invalidate_hashes();
+    tx.set_blob_size(tx_blob.size());
     //TODO: validate tx
 
     return get_transaction_hash(tx, tx_hash);
@@ -520,6 +521,19 @@ namespace cryptonote
     return get_transaction_weight(tx, blob_size);
   }
   //---------------------------------------------------------------
+  uint64_t get_transaction_blob_size(const transaction& tx)
+  {
+    if (!tx.is_blob_size_valid())
+    {
+      const cryptonote::blobdata tx_blob = tx_to_blob(tx);
+      tx.set_blob_size(tx_blob.size());
+    }
+
+    CHECK_AND_ASSERT_THROW_MES(tx.is_blob_size_valid(), "BUG: blob size valid not set");
+
+    return tx.blob_size;
+  }
+  //---------------------------------------------------------------
   bool get_tx_fee(const transaction& tx, uint64_t & fee)
   {
     if (tx.version > 1)
diff --git a/src/cryptonote_basic/cryptonote_format_utils.h b/src/cryptonote_basic/cryptonote_format_utils.h
index b97c9d499..c242823c5 100644
--- a/src/cryptonote_basic/cryptonote_format_utils.h
+++ b/src/cryptonote_basic/cryptonote_format_utils.h
@@ -137,6 +137,7 @@ namespace cryptonote
   uint64_t get_transaction_weight(const transaction &tx);
   uint64_t get_transaction_weight(const transaction &tx, size_t blob_size);
   uint64_t get_pruned_transaction_weight(const transaction &tx);
+  uint64_t get_transaction_blob_size(const transaction& tx);
 
   bool check_money_overflow(const transaction& tx);
   bool check_outs_overflow(const transaction& tx);
diff --git a/src/cryptonote_basic/verification_context.h b/src/cryptonote_basic/verification_context.h
index 9b496f0d8..822b9f622 100644
--- a/src/cryptonote_basic/verification_context.h
+++ b/src/cryptonote_basic/verification_context.h
@@ -69,6 +69,7 @@ namespace cryptonote
     bool m_marked_as_orphaned;
     bool m_already_exists;
     bool m_partial_block_reward;
-    bool m_bad_pow; // if bad pow, bad peer outright for DoS protection
+    bool m_bad_pow; // if bad pow, ban peer outright for DoS protection
+    bool m_missing_txs; // set if, during verif, we don't have all the necessary txs available
   };
 }