Add feature switch for DEx "over-offers" and math

dexX7 · dexX7 · commit ca6be693d31b · 2015-08-27T00:03:31.000+02:00
The feature is disabled per default for all networks, including regtest mode, to avoid messing up the regtests.
diff --git a/src/omnicore/rules.cpp b/src/omnicore/rules.cpp
@@ -147,6 +147,7 @@ CMainConsensusParams::CMainConsensusParams()
     MSC_BET_BLOCK = 999999;
     // Other feature activations:
     GRANTEFFECTS_FEATURE_BLOCK = 999999;
+    DEXMATH_FEATURE_BLOCK = 999999;
 }
 
 /**
@@ -179,6 +180,7 @@ CTestNetConsensusParams::CTestNetConsensusParams()
     MSC_BET_BLOCK = 999999;
     // Other feature activations:
     GRANTEFFECTS_FEATURE_BLOCK = 999999;
+    DEXMATH_FEATURE_BLOCK = 999999;
 }
 
 /**
@@ -211,6 +213,7 @@ CRegTestConsensusParams::CRegTestConsensusParams()
     MSC_BET_BLOCK = 999999;
     // Other feature activations:
     GRANTEFFECTS_FEATURE_BLOCK = 999999;
+    DEXMATH_FEATURE_BLOCK = 999999;
 }
 
 //! Consensus parameters for mainnet
@@ -350,6 +353,13 @@ bool ActivateFeature(uint16_t featureId, int activationBlock, int transactionBlo
                        "granting tokens, is going to be disabled at block %d.\n",
                        featureId, params.GRANTEFFECTS_FEATURE_BLOCK);
             return true;
+        case FEATURE_DEXMATH:
+            MutableConsensusParams().DEXMATH_FEATURE_BLOCK = activationBlock;
+            PrintToLog("Feature activation of ID %d succeeded. "
+                       "Offering more tokens than available on the traditional DEx "
+                       "is no longer allowed and going to be disabled at block %d.\n",
+                       featureId, params.DEXMATH_FEATURE_BLOCK);
+            return true;
     }
 
     PrintToLog("Feature activation of id %d refused due to unknown feature ID\n", featureId);
@@ -377,6 +387,9 @@ bool IsFeatureActivated(uint16_t featureId, int transactionBlock)
         case FEATURE_GRANTEFFECTS:
             activationBlock = params.GRANTEFFECTS_FEATURE_BLOCK;
             break;
+        case FEATURE_DEXMATH:
+            activationBlock = params.DEXMATH_FEATURE_BLOCK;
+            break;
         default:
             return false;
     }
diff --git a/src/omnicore/rules.h b/src/omnicore/rules.h
@@ -22,6 +22,8 @@ const uint16_t FEATURE_METADEX = 2;
 const uint16_t FEATURE_BETTING = 3;
 //! Feature identifier to disable crowdsale participations when "granting tokens"
 const uint16_t FEATURE_GRANTEFFECTS = 4;
+//! Feature identifier to disable DEx "over-offers" and to switch to plain integer math
+const uint16_t FEATURE_DEXMATH = 5;
 
 /** A structure to represent transaction restrictions.
  */
@@ -99,6 +101,8 @@ class CConsensusParams
 
     //! Block to deactivate crowdsale participations when "granting tokens"
     int GRANTEFFECTS_FEATURE_BLOCK;
+    //! Block to disable DEx "over-offers" and to switch to plain integer math
+    int DEXMATH_FEATURE_BLOCK;
 
     /** Returns a mapping of transaction types, and the blocks at which they are enabled. */
     virtual std::vector<TransactionRestriction> GetRestrictions() const;
