void operation_get_required_authorities( const operation& op,
flat_set<account_id_type>& active,
flat_set<account_id_type>& owner,
vector<authority>& other )
{
op.visit( operation_get_required_auth( active, owner, other ) );
}
void apply(database &db, const operation &o, const options_type &opts) {
auto undo_session = db.start_undo_session(!(opts &
skip_undo_operation));
db.pre_apply_operation(o);
o.visit(apply_operation_visitor(db, opts));
db.post_apply_operation(o);
undo_session.squash();
}
asset fee_schedule::calculate_fee( const operation& op, const price& core_exchange_rate )const
{
//idump( (op)(core_exchange_rate) );
fee_parameters params; params.set_which(op.which());
auto itr = parameters.find(params);
if( itr != parameters.end() ) params = *itr;
auto base_value = op.visit( calc_fee_visitor( params ) );
auto scaled = fc::uint128(base_value) * scale;
scaled /= GRAPHENE_100_PERCENT;
FC_ASSERT( scaled <= GRAPHENE_MAX_SHARE_SUPPLY );
auto result = asset( scaled.to_uint64(), 0 ) * core_exchange_rate;
FC_ASSERT( result.amount <= GRAPHENE_MAX_SHARE_SUPPLY );
return result;
}
asset fee_schedule::calculate_fee( const operation& op, const price& core_exchange_rate )const
{
auto base_value = op.visit( calc_fee_visitor( *this, op ) );
auto scaled = fc::uint128(base_value) * scale;
scaled /= GRAPHENE_100_PERCENT;
FC_ASSERT( scaled <= GRAPHENE_MAX_SHARE_SUPPLY );
//idump( (base_value)(scaled)(core_exchange_rate) );
auto result = asset( scaled.to_uint64(), asset_id_type(0) ) * core_exchange_rate;
//FC_ASSERT( result * core_exchange_rate >= asset( scaled.to_uint64()) );
while( result * core_exchange_rate < asset( scaled.to_uint64()) )
result.amount++;
FC_ASSERT( result.amount <= GRAPHENE_MAX_SHARE_SUPPLY );
return result;
}
asset fee_schedule::set_fee( operation& op, const price& core_exchange_rate )const
{
auto f = calculate_fee( op, core_exchange_rate );
auto f_max = f;
for( int i=0; i<MAX_FEE_STABILIZATION_ITERATION; i++ )
{
op.visit( set_fee_visitor( f_max ) );
auto f2 = calculate_fee( op, core_exchange_rate );
if( f == f2 )
break;
f_max = std::max( f_max, f2 );
f = f2;
if( i == 0 )
{
// no need for warnings on later iterations
wlog( "set_fee requires multiple iterations to stabilize with core_exchange_rate ${p} on operation ${op}",
("p", core_exchange_rate) ("op", op) );
}
}
return f_max;
}
void validate(const operation &o, const options_type &opts) {
o.visit(validate_operation_visitor(opts));
}
asset fee_schedule::set_fee( operation& op, const price& core_exchange_rate )const
{
auto f = calculate_fee( op, core_exchange_rate );
op.visit( set_fee_visitor( f ) );
return f;
}
void operation_get_impacted_accounts(const operation &op, flat_set<account_name_type> &result) {
get_impacted_account_visitor vtor = get_impacted_account_visitor(result);
op.visit(vtor);
}
void operation_validate( const operation& op )
{
op.visit( operation_validator() );
}
void operation_get_required_authorities( const operation& op, vector<authority>& result )
{
op.visit( required_auth_visitor( result ) );
}
