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market_evaluator.cpp: Fix call_order_update_evaluator exception logic

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This commit is contained in:
theoreticalbts 2015-07-16 15:24:00 -04:00
parent bc9a3173ec
commit 3cdcf5139f
2 changed files with 22 additions and 7 deletions
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4
libraries/chain/include/graphene/chain/exceptions.hpp
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@ -85,7 +85,9 @@ namespace graphene { namespace chain {
//GRAPHENE_DECLARE_OP_BASE_EXCEPTIONS( limit_order_create );
//GRAPHENE_DECLARE_OP_BASE_EXCEPTIONS( limit_order_cancel );
//GRAPHENE_DECLARE_OP_BASE_EXCEPTIONS( call_order_update );
GRAPHENE_DECLARE_OP_BASE_EXCEPTIONS( call_order_update );
GRAPHENE_DECLARE_OP_EVALUATE_EXCEPTION( unfilled_margin_call, call_order_update, 1, "Updating call order would trigger a margin call that cannot be fully filled" )
//GRAPHENE_DECLARE_OP_BASE_EXCEPTIONS( account_create );
//GRAPHENE_DECLARE_OP_BASE_EXCEPTIONS( account_update );
//GRAPHENE_DECLARE_OP_BASE_EXCEPTIONS( account_whitelist );

25
libraries/chain/market_evaluator.cpp
View file

@ -213,18 +213,31 @@ void_result call_order_update_evaluator::do_apply(const call_order_update_operat
// then we must check for margin calls and other issues
if( !_bitasset_data->is_prediction_market )
{
// Check that the order's debt per collateral is less than the system's minimum debt per collateral.
FC_ASSERT( ~call_obj->call_price <= _bitasset_data->current_feed.settlement_price,
"Insufficient collateral for debt.",
("a", ~call_obj->call_price)("b", _bitasset_data->current_feed.settlement_price));
auto call_order_id = call_obj->id;
// check to see if the order needs to be margin called now, but don't allow black swans and require there to be
// limit orders available that could be used to fill the order.
if( d.check_call_orders( *_debt_asset, false ) )
{
FC_ASSERT( !d.find_object( call_order_id ), "If updating the call order triggers a margin call, then it must completely cover the order" );
// if we filled at least one call order, we are OK if we totally filled.
GRAPHENE_ASSERT(
!d.find_object( call_order_id ),
call_order_update_unfilled_margin_call,
"Updating call order would trigger a margin call that cannot be fully filled",
("a", ~call_obj->call_price)("b", _bitasset_data->current_feed.settlement_price)
);
}
else
{
// We didn't fill any call orders. This may be because we
// aren't in margin call territory, or it may be because there
// were no matching orders. In the latter case, we throw.
GRAPHENE_ASSERT(
~call_obj->call_price < _bitasset_data->current_feed.settlement_price,
call_order_update_unfilled_margin_call,
"Updating call order would trigger a margin call that cannot be fully filled",
("a", ~call_obj->call_price)("b", _bitasset_data->current_feed.settlement_price)
);
}
}