init variables

libraries/chain/db_maint.cpp

@@ -653,7 +653,7 @@ void database::update_active_sons()
 
    const global_property_object& gpo = get_global_properties();
    const chain_parameters& cp = gpo.parameters;
-   auto sons = sort_votable_objects<son_index>(cp.maximum_son_count);
+   auto sons = sort_votable_objects<son_index>(cp.maximum_son_count());
 
    const auto& all_sons = get_index_type<son_index>().indices();
 
@@ -1981,7 +1981,7 @@ void database::perform_chain_maintenance(const signed_block& next_block, const g
          d._vote_tally_buffer.resize(props.next_available_vote_id);
          d._witness_count_histogram_buffer.resize(props.parameters.maximum_witness_count / 2 + 1);
          d._committee_count_histogram_buffer.resize(props.parameters.maximum_committee_count / 2 + 1);
-         d._son_count_histogram_buffer.resize(props.parameters.maximum_son_count / 2 + 1);
+         d._son_count_histogram_buffer.resize(props.parameters.maximum_son_count() / 2 + 1);
          d._total_voting_stake = 0;
 
          auto balance_type = vesting_balance_type::normal;
@@ -2093,7 +2093,7 @@ void database::perform_chain_maintenance(const signed_block& next_block, const g
                // same rationale as for witnesses
                d._committee_count_histogram_buffer[offset] += voting_stake;
             }
-            if( opinion_account.options.num_son <= props.parameters.maximum_son_count )
+            if( opinion_account.options.num_son <= props.parameters.maximum_son_count() )
             {
                uint16_t offset = std::min(size_t(opinion_account.options.num_son/2),
                                           d._son_count_histogram_buffer.size() - 1);
@@ -2183,6 +2183,12 @@ void database::perform_chain_maintenance(const signed_block& next_block, const g
             p.pending_parameters->extensions.value.son_down_time = p.parameters.extensions.value.son_down_time;
          if( !p.pending_parameters->extensions.value.son_bitcoin_min_tx_confirmations.valid() )
             p.pending_parameters->extensions.value.son_bitcoin_min_tx_confirmations = p.parameters.extensions.value.son_bitcoin_min_tx_confirmations;
+	 if( !p.pending_parameters->extensions.value.son_account.valid() )
+            p.pending_parameters->extensions.value.son_account = p.parameters.extensions.value.son_account;
+         if( !p.pending_parameters->extensions.value.btc_asset.valid() )
+            p.pending_parameters->extensions.value.btc_asset = p.parameters.extensions.value.btc_asset;
+	 if( !p.pending_parameters->extensions.value.maximum_son_count.valid() )
+            p.pending_parameters->extensions.value.maximum_son_count = p.parameters.extensions.value.maximum_son_count;
          p.parameters = std::move(*p.pending_parameters);
          p.pending_parameters.reset();
       }

libraries/chain/include/graphene/chain/budget_record_object.hpp

@@ -76,7 +76,9 @@ FC_REFLECT(graphene::chain::budget_record,
    (total_budget)
    (witness_budget)
    (worker_budget)
+   (son_budget)
    (leftover_worker_funds)
+   (leftover_son_funds)
    (supply_delta)
 )
 

libraries/chain/include/graphene/chain/protocol/chain_parameters.hpp

@@ -65,9 +65,9 @@ namespace graphene { namespace chain {
       optional < uint32_t >           son_heartbeat_frequency           = SON_HEARTBEAT_FREQUENCY;
       optional < uint32_t >           son_down_time                     = SON_DOWN_TIME;
       optional < uint16_t >           son_bitcoin_min_tx_confirmations  = SON_BITCOIN_MIN_TX_CONFIRMATIONS;
-
-      optional < account_id_type >    son_account;
-      optional < asset_id_type >      btc_asset;
+      optional < account_id_type >    son_account                       = GRAPHENE_NULL_ACCOUNT;
+      optional < asset_id_type >      btc_asset                         = asset_id_type();
+      optional < uint16_t >           maximum_son_count                 = GRAPHENE_DEFAULT_MAX_SONS; ///< maximum number of active SONS
    };
 
    struct chain_parameters
@@ -86,7 +86,6 @@ namespace graphene { namespace chain {
       uint8_t                 maximum_asset_feed_publishers       = GRAPHENE_DEFAULT_MAX_ASSET_FEED_PUBLISHERS; ///< the maximum number of feed publishers for a given asset
       uint16_t                maximum_witness_count               = GRAPHENE_DEFAULT_MAX_WITNESSES; ///< maximum number of active witnesses
       uint16_t                maximum_committee_count             = GRAPHENE_DEFAULT_MAX_COMMITTEE; ///< maximum number of active committee_members
-      uint16_t                maximum_son_count                   = GRAPHENE_DEFAULT_MAX_SONS; ///< maximum number of active SONS
       uint16_t                maximum_authority_membership        = GRAPHENE_DEFAULT_MAX_AUTHORITY_MEMBERSHIP; ///< largest number of keys/accounts an authority can have
       uint16_t                reserve_percent_of_fee              = GRAPHENE_DEFAULT_BURN_PERCENT_OF_FEE; ///< the percentage of the network's allocation of a fee that is taken out of circulation
       uint16_t                network_percent_of_fee              = GRAPHENE_DEFAULT_NETWORK_PERCENT_OF_FEE; ///< percent of transaction fees paid to network
@@ -205,6 +204,9 @@ namespace graphene { namespace chain {
       inline asset_id_type btc_asset() const {
          return extensions.value.btc_asset.valid() ? *extensions.value.btc_asset : asset_id_type();
       }
+      inline uint16_t maximum_son_count()const {
+         return extensions.value.maximum_son_count.valid() ? *extensions.value.maximum_son_count : GRAPHENE_DEFAULT_MAX_SONS;
+      }
    };
 
 } }  // graphene::chain
@@ -237,6 +239,7 @@ FC_REFLECT( graphene::chain::parameter_extension,
    (son_bitcoin_min_tx_confirmations)
    (son_account)
    (btc_asset)
+   (maximum_son_count)
 )
 
 FC_REFLECT( graphene::chain::chain_parameters,
@@ -253,7 +256,6 @@ FC_REFLECT( graphene::chain::chain_parameters,
             (maximum_asset_feed_publishers)
             (maximum_witness_count)
             (maximum_committee_count)
-            (maximum_son_count)
             (maximum_authority_membership)
             (reserve_percent_of_fee)
             (network_percent_of_fee)

libraries/chain/include/graphene/chain/witness_schedule_object.hpp

@@ -57,7 +57,7 @@ typedef generic_far_future_witness_scheduler<
 typedef generic_witness_scheduler<
    /* WitnessID  = */ son_id_type,
    /* RNG        = */ witness_scheduler_rng,
-   /* CountType  = */ decltype( chain_parameters::maximum_son_count ),
+   /* CountType  = */ decltype( chain_parameters::extensions.value.maximum_son_count )::value_type,
    /* OffsetType = */ uint32_t,
    /* debug      = */ true
    > son_scheduler;
@@ -65,7 +65,7 @@ typedef generic_witness_scheduler<
 typedef generic_far_future_witness_scheduler<
    /* WitnessID  = */ son_id_type,
    /* RNG        = */ witness_scheduler_rng,
-   /* CountType  = */ decltype( chain_parameters::maximum_son_count ),
+   /* CountType  = */ decltype( chain_parameters::extensions.value.maximum_son_count )::value_type,
    /* OffsetType = */ uint32_t,
    /* debug      = */ true
    > far_future_son_scheduler;

programs/witness_node/genesis.json

@@ -344,7 +344,6 @@
     "maximum_asset_feed_publishers": 10,
     "maximum_witness_count": 1001,
     "maximum_committee_count": 1001,
-    "maximum_son_count": 15,
     "maximum_authority_membership": 10,
     "reserve_percent_of_fee": 2000,
     "network_percent_of_fee": 2000,
@@ -392,7 +391,8 @@
       "son_pay_time": 86400,
       "son_deregister_time": 43200,
       "son_heartbeat_frequency": 180,
-      "son_down_time": 360
+      "son_down_time": 360,
+      "maximum_son_count": 15
     }
   },
   "initial_bts_accounts": [],

tests/cli/son.cpp

@@ -278,7 +278,7 @@ BOOST_FIXTURE_TEST_CASE( select_top_fifteen_sons, cli_fixture )
       global_property_object gpo;
 
       gpo = con.wallet_api_ptr->get_global_properties();
-      unsigned int son_number = gpo.parameters.maximum_son_count;
+      unsigned int son_number = gpo.parameters.maximum_son_count();
 
       flat_map<sidechain_type, string> sidechain_public_keys;
 
@@ -578,7 +578,7 @@ BOOST_FIXTURE_TEST_CASE( cli_list_active_sons, cli_fixture )
       global_property_object gpo;
 
       gpo = con.wallet_api_ptr->get_global_properties();
-      unsigned int son_number = gpo.parameters.maximum_son_count;
+      unsigned int son_number = gpo.parameters.maximum_son_count();
 
       flat_map<sidechain_type, string> sidechain_public_keys;
 
@@ -645,7 +645,7 @@ BOOST_AUTO_TEST_CASE( maintenance_test )
 
       global_property_object gpo;
       gpo = con.wallet_api_ptr->get_global_properties();
-      unsigned int son_number = gpo.parameters.maximum_son_count;
+      unsigned int son_number = gpo.parameters.maximum_son_count();
 
       flat_map<sidechain_type, string> sidechain_public_keys;