Merge pull request #1605

7c3f79cb core: early out in handle_incoming_tx if already in pool or blockchain (moneromooo-monero)
6cc7d261 ringct: reorder a bit to check quicker tests first (moneromooo-monero)

src/cryptonote_core/cryptonote_core.cpp

@@ -496,6 +496,18 @@ namespace cryptonote
       return false;
     }
 
+    if(m_mempool.have_tx(tx_hash))
+    {
+      LOG_PRINT_L2("tx " << tx_hash << "already have transaction in tx_pool");
+      return true;
+    }
+
+    if(m_blockchain_storage.have_tx(tx_hash))
+    {
+      LOG_PRINT_L2("tx " << tx_hash << " already have transaction in blockchain");
+      return true;
+    }
+
     if(!check_tx_syntax(tx))
     {
       LOG_PRINT_L1("WRONG TRANSACTION BLOB, Failed to check tx " << tx_hash << " syntax, rejected");

src/ringct/rctSigs.cpp

@@ -797,23 +797,6 @@ namespace rct {
         tools::thread_group threadpool(tools::thread_group::optimal_with_max(threads));
 
         if (semantics) {
-          results.clear();
-          results.resize(rv.outPk.size());
-          tools::task_region(threadpool, [&] (tools::task_region_handle& region) {
-            for (size_t i = 0; i < rv.outPk.size(); i++) {
-              region.run([&, i] {
-                  results[i] = verRange(rv.outPk[i].mask, rv.p.rangeSigs[i]);
-              });
-            }
-          });
-
-          for (size_t i = 0; i < results.size(); ++i) {
-            if (!results[i]) {
-              LOG_PRINT_L1("Range proof verified failed for output " << i);
-              return false;
-            }
-          }
-
           key sumOutpks = identity();
           for (size_t i = 0; i < rv.outPk.size(); i++) {
               addKeys(sumOutpks, sumOutpks, rv.outPk[i].mask);
@@ -833,6 +816,23 @@ namespace rct {
               LOG_PRINT_L1("Sum check failed");
               return false;
           }
+
+          results.clear();
+          results.resize(rv.outPk.size());
+          tools::task_region(threadpool, [&] (tools::task_region_handle& region) {
+            for (size_t i = 0; i < rv.outPk.size(); i++) {
+              region.run([&, i] {
+                  results[i] = verRange(rv.outPk[i].mask, rv.p.rangeSigs[i]);
+              });
+            }
+          });
+
+          for (size_t i = 0; i < results.size(); ++i) {
+            if (!results[i]) {
+              LOG_PRINT_L1("Range proof verified failed for output " << i);
+              return false;
+            }
+          }
         }
         else {
           const key message = get_pre_mlsag_hash(rv);