102 lines
4.5 KiB
C++
102 lines
4.5 KiB
C++
/*
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* Copyright (c) 2015 Cryptonomex, Inc., and contributors.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
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*
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* 1. Any modified source or binaries are used only with the BitShares network.
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*
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* 2. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
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*
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* 3. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
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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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*/
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#include <graphene/chain/database.hpp>
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#include <graphene/chain/evaluator.hpp>
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#include <graphene/chain/exceptions.hpp>
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#include <graphene/chain/hardfork.hpp>
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#include <graphene/chain/transaction_evaluation_state.hpp>
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#include <graphene/chain/asset_object.hpp>
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#include <graphene/chain/account_object.hpp>
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#include <graphene/chain/committee_member_object.hpp>
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#include <graphene/chain/market_evaluator.hpp>
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#include <graphene/chain/protocol/fee_schedule.hpp>
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#include <fc/uint128.hpp>
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namespace graphene { namespace chain {
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database& generic_evaluator::db()const { return trx_state->db(); }
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operation_result generic_evaluator::start_evaluate( transaction_evaluation_state& eval_state, const operation& op, bool apply )
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{ try {
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trx_state = &eval_state;
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//check_required_authorities(op);
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auto result = evaluate( op );
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if( apply ) result = this->apply( op );
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return result;
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} FC_CAPTURE_AND_RETHROW() }
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void generic_evaluator::prepare_fee(account_id_type account_id, asset fee)
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{
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const database& d = db();
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fee_from_account = fee;
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FC_ASSERT( fee.amount >= 0 );
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fee_paying_account = &account_id(d);
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fee_paying_account_statistics = &fee_paying_account->statistics(d);
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fee_asset = &fee.asset_id(d);
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fee_asset_dyn_data = &fee_asset->dynamic_asset_data_id(d);
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if( d.head_block_time() > HARDFORK_419_TIME )
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{
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FC_ASSERT( fee_paying_account->is_authorized_asset( *fee_asset, d ), "Account ${acct} '${name}' attempted to pay fee by using asset ${a} '${sym}', which is unauthorized due to whitelist / blacklist",
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("acct", fee_paying_account->id)("name", fee_paying_account->name)("a", fee_asset->id)("sym", fee_asset->symbol) );
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}
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if( fee_from_account.asset_id == asset_id_type() )
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core_fee_paid = fee_from_account.amount;
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else
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{
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asset fee_from_pool = fee_from_account * fee_asset->options.core_exchange_rate;
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FC_ASSERT( fee_from_pool.asset_id == asset_id_type() );
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core_fee_paid = fee_from_pool.amount;
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FC_ASSERT( core_fee_paid <= fee_asset_dyn_data->fee_pool, "Fee pool balance of '${b}' is less than the ${r} required to convert ${c}",
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("r", db().to_pretty_string( fee_from_pool))("b",db().to_pretty_string(fee_asset_dyn_data->fee_pool))("c",db().to_pretty_string(fee)) );
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}
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}
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void generic_evaluator::convert_fee()
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{
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if( !trx_state->skip_fee ) {
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if( fee_asset->get_id() != asset_id_type() )
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{
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db().modify(*fee_asset_dyn_data, [this](asset_dynamic_data_object& d) {
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d.accumulated_fees += fee_from_account.amount;
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d.fee_pool -= core_fee_paid;
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});
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}
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}
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}
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void generic_evaluator::pay_fee()
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{ try {
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if( !trx_state->skip_fee ) {
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database& d = db();
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/// TODO: db().pay_fee( account_id, core_fee );
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d.modify(*fee_paying_account_statistics, [&](account_statistics_object& s)
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{
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s.pay_fee( core_fee_paid, d.get_global_properties().parameters.cashback_vesting_threshold );
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});
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}
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} FC_CAPTURE_AND_RETHROW() }
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} }
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