90e04d0290
- this code does not compile, there are now circular references that need to be resolved.
65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
#include <graphene/chain/fee_schedule.hpp>
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namespace graphene { namespace chain {
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fee_schedule::fee_schedule()
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{
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}
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fee_schedule fee_schedule::get_default()
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{
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fee_schedule result;
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for( uint32_t i = 0; i < fee_parameters.count(); ++i )
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{
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fee_parameters x; x.set_which(i);
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result.parameters.insert(x);
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}
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return result;
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}
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struct fee_schedule_validate_visitor
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{
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typedef result_type void;
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template<typename T>
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void operator()( const T& p )const
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{
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p.validate();
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}
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};
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void fee_schedule::validate()const
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{
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for( const auto& f : parameters )
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f.visit( fee_schedule_validate_visitor() );
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}
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struct calc_fee_visitor
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{
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typedef result_type asset;
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const fee_parameters& param;
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calc_fee_visitor( const fee_parameters& p ):param(p){}
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template<typename OpType>
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asset operator()( const OpType& op )const
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{
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return op.calculate_fee( param.get<typename OpType::fee_parameters_type>() );
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}
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};
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asset fee_schedule::calculate_fee( const operation& op, const price& core_exchange_rate )const
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{
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fee_parameters params; params.set_which(op.which());
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auto itr = parameters.find(params);
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if( itr != parameters.end() ) params = *itr;
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share_type base_value op.visit( calc_fee_visitor( params ) );
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auto scaled = fc::uint128(base_value.value) * scale_factor;
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scaled /= GRAPHENE_100_PERCENT;
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FC_ASSERT( scaled <= GRAPHENE_MAX_SHARE_SUPPLY );
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auto result = asset( scaled.to_uint64(), 0 ) * core_exchange_rate;
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FC_ASSERT( result.amount <= GRAPHENE_MAX_SHARE_SUPPLY );
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return result;
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}
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} } // graphene::chain
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