149 lines
6.5 KiB
C++
149 lines
6.5 KiB
C++
/*
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* Copyright (c) 2015, Cryptonomex, Inc.
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* All rights reserved.
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*
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* This source code is provided for evaluation in private test networks only, until September 8, 2015. After this date, this license expires and
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* the code may not be used, modified or distributed for any purpose. Redistribution and use in source and binary forms, with or without modification,
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* are permitted until September 8, 2015, provided that the following conditions are met:
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*
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* 1. The code and/or derivative works are used only for private test networks consisting of no more than 10 P2P nodes.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <graphene/chain/account_object.hpp>
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#include <graphene/chain/asset_object.hpp>
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#include <graphene/chain/database.hpp>
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#include <fc/uint128.hpp>
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namespace graphene { namespace chain {
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share_type cut_fee(share_type a, uint16_t p)
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{
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if( a == 0 || p == 0 )
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return 0;
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if( p == GRAPHENE_100_PERCENT )
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return a;
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fc::uint128 r(a.value);
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r *= p;
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r /= GRAPHENE_100_PERCENT;
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return r.to_uint64();
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}
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bool account_object::is_authorized_asset(const asset_object& asset_obj) const {
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for( const auto id : blacklisting_accounts )
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if( asset_obj.options.blacklist_authorities.find(id) != asset_obj.options.blacklist_authorities.end() ) return false;
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for( const auto id : whitelisting_accounts )
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if( asset_obj.options.whitelist_authorities.find(id) != asset_obj.options.whitelist_authorities.end() ) return true;
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return false;
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}
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void account_balance_object::adjust_balance(const asset& delta)
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{
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assert(delta.asset_id == asset_type);
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balance += delta.amount;
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}
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uint16_t account_statistics_object::calculate_bulk_discount_percent(const chain_parameters& params) const
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{
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uint64_t bulk_discount_percent = 0;
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if( lifetime_fees_paid >= params.bulk_discount_threshold_max )
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bulk_discount_percent = params.max_bulk_discount_percent_of_fee;
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else if(params.bulk_discount_threshold_max.value !=
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params.bulk_discount_threshold_min.value)
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{
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bulk_discount_percent =
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(params.max_bulk_discount_percent_of_fee *
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(lifetime_fees_paid.value -
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params.bulk_discount_threshold_min.value)) /
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(params.bulk_discount_threshold_max.value -
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params.bulk_discount_threshold_min.value);
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}
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assert( bulk_discount_percent <= GRAPHENE_100_PERCENT );
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return bulk_discount_percent;
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}
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void account_statistics_object::process_fees(const account_object& a, database& d) const
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{
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if( pending_fees > 0 || pending_vested_fees > 0 )
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{
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const auto& props = d.get_global_properties();
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auto pay_out_fees = [&](const account_object& account, share_type core_fee_total, bool require_vesting)
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{
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share_type network_cut = cut_fee(core_fee_total, account.network_fee_percentage);
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assert( network_cut <= core_fee_total );
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share_type burned = cut_fee(network_cut, props.parameters.burn_percent_of_fee);
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share_type accumulated = network_cut - burned;
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assert( accumulated + burned == network_cut );
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share_type lifetime_cut = cut_fee(core_fee_total, account.lifetime_referrer_fee_percentage);
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share_type referral = core_fee_total - network_cut - lifetime_cut;
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d.modify(dynamic_asset_data_id_type()(d), [network_cut](asset_dynamic_data_object& d) {
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d.accumulated_fees += network_cut;
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});
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// Potential optimization: Skip some of this math and object lookups by special casing on the account type.
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// For example, if the account is a lifetime member, we can skip all this and just deposit the referral to
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// it directly.
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share_type referrer_cut = cut_fee(referral, account.referrer_rewards_percentage);
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share_type registrar_cut = referral - referrer_cut;
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d.deposit_cashback(d.get(account.lifetime_referrer), lifetime_cut, require_vesting);
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d.deposit_cashback(d.get(account.referrer), referrer_cut, require_vesting);
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d.deposit_cashback(d.get(account.registrar), registrar_cut, require_vesting);
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assert( referrer_cut + registrar_cut + accumulated + burned + lifetime_cut == core_fee_total );
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};
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share_type vesting_fee_subtotal(pending_fees);
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share_type vested_fee_subtotal(pending_vested_fees);
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share_type vesting_cashback, vested_cashback;
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if( lifetime_fees_paid > props.parameters.bulk_discount_threshold_min &&
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a.is_member(d.head_block_time()) )
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{
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auto bulk_discount_rate = calculate_bulk_discount_percent(props.parameters);
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vesting_cashback = cut_fee(vesting_fee_subtotal, bulk_discount_rate);
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vesting_fee_subtotal -= vesting_cashback;
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vested_cashback = cut_fee(vested_fee_subtotal, bulk_discount_rate);
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vested_fee_subtotal -= vested_cashback;
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}
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pay_out_fees(a, vesting_fee_subtotal, true);
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d.deposit_cashback(a, vesting_cashback, true);
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pay_out_fees(a, vested_fee_subtotal, false);
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d.deposit_cashback(a, vested_cashback, false);
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d.modify(*this, [vested_fee_subtotal, vesting_fee_subtotal](account_statistics_object& s) {
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s.lifetime_fees_paid += vested_fee_subtotal + vesting_fee_subtotal;
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s.pending_fees = 0;
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s.pending_vested_fees = 0;
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});
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}
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}
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void account_object::options_type::validate() const
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{
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auto needed_witnesses = num_witness;
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auto needed_committee = num_committee;
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for( vote_id_type id : votes )
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if( id.type() == vote_id_type::witness && needed_witnesses )
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--needed_witnesses;
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else if ( id.type() == vote_id_type::committee && needed_committee )
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--needed_committee;
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FC_ASSERT( needed_witnesses == 0 && needed_committee == 0,
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"May not specify fewer witnesses or committee members than the number voted for.");
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}
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} } // graphene::chain
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