Merge pull request #2104 from bitshares/pr-2103-supply-fix

Fix supply issue

Author: abitmore

libraries/chain/db_maint.cpp

@@ -32,6 +32,7 @@
 
 #include <graphene/chain/account_object.hpp>
 #include <graphene/chain/asset_object.hpp>
+#include <graphene/chain/balance_object.hpp>
 #include <graphene/chain/budget_record_object.hpp>
 #include <graphene/chain/buyback_object.hpp>
 #include <graphene/chain/chain_property_object.hpp>
@@ -970,6 +971,22 @@ void process_hf_1465( database& db )
    }
 }
 
+/****
+ * @brief a one-time data process to correct current_supply of BTS token in the BitShares mainnet
+ */
+void process_hf_2103( database& db )
+{
+   const balance_object* bal = db.find( balance_id_type( HARDFORK_CORE_2103_BALANCE_ID ) );
+   if( bal != nullptr && bal->balance.amount < 0 )
+   {
+      const asset_dynamic_data_object& ddo = bal->balance.asset_id(db).dynamic_data(db);
+      db.modify<asset_dynamic_data_object>( ddo, [bal](asset_dynamic_data_object& obj) {
+         obj.current_supply -= bal->balance.amount;
+      });
+      db.remove( *bal );
+   }
+}
+
 void update_median_feeds(database& db)
 {
    time_point_sec head_time = db.head_block_time();
@@ -1227,6 +1244,10 @@ void database::perform_chain_maintenance(const signed_block& next_block, const g
    if ( dgpo.next_maintenance_time <= HARDFORK_CORE_1465_TIME && next_maintenance_time > HARDFORK_CORE_1465_TIME )
       process_hf_1465(*this);
 
+   // Fix supply issue
+   if ( dgpo.next_maintenance_time <= HARDFORK_CORE_2103_TIME && next_maintenance_time > HARDFORK_CORE_2103_TIME )
+      process_hf_2103(*this);
+
    modify(dgpo, [next_maintenance_time](dynamic_global_property_object& d) {
       d.next_maintenance_time = next_maintenance_time;
       d.accounts_registered_this_interval = 0;

libraries/chain/hardfork.d/CORE_2103.hf

@@ -0,0 +1,5 @@
+// bitshares-core issue #2103 250M BTS supply
+#ifndef HARDFORK_CORE_2103_TIME
+#define HARDFORK_CORE_2103_TIME (fc::time_point_sec( 1600000000 ) ) // Sep 2020
+#define HARDFORK_CORE_2103_BALANCE_ID 56720 // 1.15.56720
+#endif

programs/build_helpers/cat-parts.cmake

@@ -10,7 +10,7 @@ file( MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/include/graphene/chain/" )
 
 set( HARDFORK_REGENERATE TRUE )
 
-file( GLOB HARDFORKS "${CMAKE_CURRENT_SOURCE_DIR}/hardfork.d/*" )
+file( GLOB HARDFORKS "${CMAKE_CURRENT_SOURCE_DIR}/hardfork.d/*.hf" )
 foreach( HF ${HARDFORKS} )
   file( READ "${HF}" INCL )
   string( CONCAT HARDFORK_CONTENT ${HARDFORK_CONTENT} ${INCL} )