price operator/(const asset &base, const asset "e) {
try {
FC_ASSERT(base.symbol_name() != quote.symbol_name());
return price{base, quote};
}
FC_CAPTURE_AND_RETHROW((base)(quote))
}
void block_evaluation_state::add_output_delegate_votes( int32_t did, const asset& votes )
{
auto itr = _output_votes.find(did);
if( itr == _output_votes.end() )
_output_votes[did] = votes.get_rounded_amount();
else
itr->second += votes.get_rounded_amount();
}
void token::issue( account_name to, asset quantity, string memo )
{
auto sym = quantity.symbol;
eosio_assert( sym.is_valid(), "invalid symbol name" );
eosio_assert( memo.size() <= 256, "memo has more than 256 bytes" );
auto sym_name = sym.name();
stats statstable( _self, sym_name );
auto existing = statstable.find( sym_name );
eosio_assert( existing != statstable.end(), "token with symbol does not exist, create token before issue" );
const auto& st = *existing;
require_auth( st.issuer );
eosio_assert( quantity.is_valid(), "invalid quantity" );
eosio_assert( quantity.amount > 0, "must issue positive quantity" );
eosio_assert( quantity.symbol == st.supply.symbol, "symbol precision mismatch" );
eosio_assert( quantity.amount <= st.max_supply.amount - st.supply.amount, "quantity exceeds available supply");
statstable.modify( st, 0, [&]( auto& s ) {
s.supply += quantity;
});
add_balance( st.issuer, quantity, st.issuer );
if( to != st.issuer ) {
SEND_INLINE_ACTION( *this, transfer, {st.issuer,N(active)}, {st.issuer, to, quantity, memo} );
}
}
string database_fixture::pretty( const asset& a )const
{
std::stringstream ss;
ss << a.amount.value << " ";
ss << a.asset_id(db).symbol;
return ss.str();
}
void database_fixture::issue_uia( const account_object& recipient, asset amount )
{
asset_issue_operation op({asset(),amount.asset_id(db).issuer, amount, recipient.id});
trx.validate();
trx.operations.push_back(op);
return;
}
uint16_t trx_validation_state::find_unused_sig_output( const address& owner, const asset& bal )
{
auto rounded_amount = asset(bal.get_rounded_amount(),bal.unit);
ilog( "find unused sig output ${o} ${bal}", ("o", owner)("bal",bal) );
for( uint32_t i = 0; i < trx.outputs.size(); ++i )
{
if( used_outputs.find(i) == used_outputs.end() )
{
ilog( "out: ${i}", ("i",trx.outputs[i]) );
if( trx.outputs[i].claim_func == claim_by_signature )
{
ilog( "amount: ${i} ==? ${r} ", ("i",trx.outputs[i].get_amount())("r",rounded_amount) );
ilog( "round down amount: ${i} ==? ${r} ", ("i",trx.outputs[i].amount/5)("r",rounded_amount.amount.high_bits()/5) );
if( trx.outputs[i].amount/5 == rounded_amount.amount.high_bits()/5 && trx.outputs[i].unit == bal.unit )
{
if( trx.outputs[i].as<claim_by_signature_output>().owner == owner )
{
return i;
}
}
}
}
}
return output_not_found;
}
uint64_t database_fixture::fund(
const account_object& account,
const asset& amount /* = asset(500000) */
)
{
transfer(account_id_type()(db), account, amount);
return get_balance(account, amount.asset_id(db));
}
asset operator*(const asset &a, const price &b) {
if (a.symbol_name() == b.base.symbol_name()) {
FC_ASSERT(b.base.amount.value > 0);
uint128_t result =
(uint128_t(a.amount.value) * b.quote.amount.value) /
b.base.amount.value;
FC_ASSERT(result.hi == 0);
return asset(result.to_uint64(), b.quote.symbol);
} else if (a.symbol_name() == b.quote.symbol_name()) {
FC_ASSERT(b.quote.amount.value > 0);
uint128_t result =
(uint128_t(a.amount.value) * b.base.amount.value) /
b.quote.amount.value;
FC_ASSERT(result.hi == 0);
return asset(result.to_uint64(), b.base.symbol);
}
FC_THROW_EXCEPTION(fc::assert_exception, "invalid asset * price", ("asset", a)("price", b));
}
asset operator * ( const asset& a, const price& b )
{
if( a.symbol_name() == b.base.symbol_name() )
{
FC_ASSERT( b.base.amount.value > 0 );
uint128_t result = (uint128_t(a.amount.value) * b.quote.amount.value)/b.base.amount.value;
FC_ASSERT( result <= uint64_t(-1) );
return asset( result.to_uint64(), b.quote.symbol );
}
else if( a.symbol_name() == b.quote.symbol_name() )
{
FC_ASSERT( b.quote.amount.value > 0 );
uint128_t result = (uint128_t(a.amount.value) * b.base.amount.value)/b.quote.amount.value;
//FC_ASSERT( result <= STEEMIT_MAX_SHARE_SUPPLY, "${result}", ("result",result)("max",STEEMIT_MAX_SHARE_SUPPLY)("asset",a)("price",b) );
FC_ASSERT( result <= uint64_t(-1) );
return asset( result.to_uint64(), b.base.symbol );
}
FC_THROW_EXCEPTION( fc::assert_exception, "invalid asset * price", ("asset",a)("price",b) );
}
void database_fixture::issue_uia( const account_object& recipient, asset amount )
{
BOOST_TEST_MESSAGE( "Issuing UIA" );
asset_issue_operation op;
op.issuer = amount.asset_id(db).issuer;
op.asset_to_issue = amount;
op.issue_to_account = recipient.id;
trx.operations.push_back(op);
db.push_transaction( trx, ~0 );
trx.operations.clear();
}
bool database::fill_order( const call_order_object& order, const asset& pays, const asset& receives )
{ try {
//idump((pays)(receives)(order));
FC_ASSERT( order.get_debt().asset_id == receives.asset_id );
FC_ASSERT( order.get_collateral().asset_id == pays.asset_id );
FC_ASSERT( order.get_collateral() >= pays );
optional<asset> collateral_freed;
modify( order, [&]( call_order_object& o ){
o.debt -= receives.amount;
o.collateral -= pays.amount;
if( o.debt == 0 )
{
collateral_freed = o.get_collateral();
o.collateral = 0;
}
});
const asset_object& mia = receives.asset_id(*this);
assert( mia.is_market_issued() );
const asset_dynamic_data_object& mia_ddo = mia.dynamic_asset_data_id(*this);
modify( mia_ddo, [&]( asset_dynamic_data_object& ao ){
//idump((receives));
ao.current_supply -= receives.amount;
});
const account_object& borrower = order.borrower(*this);
if( collateral_freed || pays.asset_id == asset_id_type() )
{
const account_statistics_object& borrower_statistics = borrower.statistics(*this);
if( collateral_freed )
adjust_balance(borrower.get_id(), *collateral_freed);
modify( borrower_statistics, [&]( account_statistics_object& b ){
if( collateral_freed && collateral_freed->amount > 0 )
b.total_core_in_orders -= collateral_freed->amount;
if( pays.asset_id == asset_id_type() )
b.total_core_in_orders -= pays.amount;
assert( b.total_core_in_orders >= 0 );
});
}
assert( pays.asset_id != receives.asset_id );
push_applied_operation( fill_order_operation{ order.id, order.borrower, pays, receives, asset(0, pays.asset_id) } );
if( collateral_freed )
remove( order );
return collateral_freed.valid();
} FC_CAPTURE_AND_RETHROW( (order)(pays)(receives) ) }
bool database::fill_order( const limit_order_object& order, const asset& pays, const asset& receives )
{ try {
FC_ASSERT( order.amount_for_sale().asset_id == pays.asset_id );
FC_ASSERT( pays.asset_id != receives.asset_id );
const account_object& seller = order.seller(*this);
const asset_object& recv_asset = receives.asset_id(*this);
auto issuer_fees = pay_market_fees( recv_asset, receives );
pay_order( seller, receives - issuer_fees, pays );
assert( pays.asset_id != receives.asset_id );
push_applied_operation( fill_order_operation( order.id, order.seller, pays, receives, issuer_fees ) );
// conditional because cheap integer comparison may allow us to avoid two expensive modify() and object lookups
if( order.deferred_fee > 0 )
{
modify( seller.statistics(*this), [&]( account_statistics_object& statistics )
{
statistics.pay_fee( order.deferred_fee, get_global_properties().parameters.cashback_vesting_threshold );
} );
}
if( pays == order.amount_for_sale() )
{
remove( order );
return true;
}
else
{
modify( order, [&]( limit_order_object& b ) {
b.for_sale -= pays.amount;
b.deferred_fee = 0;
});
/**
* There are times when the AMOUNT_FOR_SALE * SALE_PRICE == 0 which means that we
* have hit the limit where the seller is asking for nothing in return. When this
* happens we must refund any balance back to the seller, it is too small to be
* sold at the sale price.
*/
if( order.amount_to_receive().amount == 0 )
{
cancel_order(order);
return true;
}
return false;
}
} FC_CAPTURE_AND_RETHROW( (order)(pays)(receives) ) }
void deposit( const account_name from, const asset& quantity )
{
eosio_assert( quantity.is_valid(), "invalid quantiy" );
eosio_assert( quantity.amount > 0, "must deposit positive quantity" );
action
(
permission_level
{
from, N( active )
},
N( eosio.token ),
N( transfer ),
std::make_tuple( from, _self, quantity, std::string("") )
).send();
return;
}
void token::create( account_name issuer,
asset maximum_supply )
{
require_auth( _self );
auto sym = maximum_supply.symbol;
eosio_assert( sym.is_valid(), "invalid symbol name" );
eosio_assert( maximum_supply.is_valid(), "invalid supply");
eosio_assert( maximum_supply.amount > 0, "max-supply must be positive");
stats statstable( _self, sym.name() );
auto existing = statstable.find( sym.name() );
eosio_assert( existing == statstable.end(), "token with symbol already exists" );
statstable.emplace( _self, [&]( auto& s ) {
s.supply.symbol = maximum_supply.symbol;
s.max_supply = maximum_supply;
s.issuer = issuer;
});
}
bool database::fill_order( const limit_order_object& order, const asset& pays, const asset& receives, bool cull_if_small )
{ try {
cull_if_small |= (head_block_time() < HARDFORK_555_TIME);
FC_ASSERT( order.amount_for_sale().asset_id == pays.asset_id );
FC_ASSERT( pays.asset_id != receives.asset_id );
const account_object& seller = order.seller(*this);
const asset_object& recv_asset = receives.asset_id(*this);
auto issuer_fees = pay_market_fees( recv_asset, receives );
pay_order( seller, receives - issuer_fees, pays );
assert( pays.asset_id != receives.asset_id );
push_applied_operation( fill_order_operation( order.id, order.seller, pays, receives, issuer_fees ) );
// conditional because cheap integer comparison may allow us to avoid two expensive modify() and object lookups
if( order.deferred_fee > 0 )
{
modify( seller.statistics(*this), [&]( account_statistics_object& statistics )
{
statistics.pay_fee( order.deferred_fee, get_global_properties().parameters.cashback_vesting_threshold );
} );
}
if( pays == order.amount_for_sale() )
{
remove( order );
return true;
}
else
{
modify( order, [&]( limit_order_object& b ) {
b.for_sale -= pays.amount;
b.deferred_fee = 0;
});
if( cull_if_small )
return maybe_cull_small_order( *this, order );
return false;
}
} FC_CAPTURE_AND_RETHROW( (order)(pays)(receives) ) }
//@abi action
void deposit( const account_name from, const asset& quantity ) {
eosio_assert( quantity.is_valid(), "invalid quantity" );
eosio_assert( quantity.amount > 0, "must deposit positive quantity" );
auto itr = accounts.find(from);
if( itr == accounts.end() ) {
itr = accounts.emplace(_self, [&](auto& acnt){
acnt.owner = from;
});
}
action(
permission_level{ from, N(active) },
N(eosio.token), N(transfer),
std::make_tuple(from, _self, quantity, std::string(""))
).send();
accounts.modify( itr, 0, [&]( auto& acnt ) {
acnt.eos_balance += quantity;
});
}
bool database::fill_order( const limit_order_object& order, const asset& pays, const asset& receives )
{
assert( order.amount_for_sale().asset_id == pays.asset_id );
assert( pays.asset_id != receives.asset_id );
const account_object& seller = order.seller(*this);
const asset_object& recv_asset = receives.asset_id(*this);
auto issuer_fees = pay_market_fees( recv_asset, receives );
pay_order( seller, receives - issuer_fees, pays );
assert( pays.asset_id != receives.asset_id );
push_applied_operation( fill_order_operation( order.id, order.seller, pays, receives, issuer_fees ) );
if( pays == order.amount_for_sale() )
{
remove( order );
return true;
}
else
{
modify( order, [&]( limit_order_object& b ) {
b.for_sale -= pays.amount;
});
/**
* There are times when the AMOUNT_FOR_SALE * SALE_PRICE == 0 which means that we
* have hit the limit where the seller is asking for nothing in return. When this
* happens we must refund any balance back to the seller, it is too small to be
* sold at the sale price.
*/
if( order.amount_to_receive().amount == 0 )
{
cancel_order(order);
return true;
}
return false;
}
}
//@abi action
void withdraw( const account_name to, const asset& quantity ) {
require_auth( to );
eosio_assert( quantity.is_valid(), "invalid quantity" );
eosio_assert( quantity.amount > 0, "must withdraw positive quantity" );
auto itr = accounts.find( to );
eosio_assert(itr != accounts.end(), "unknown account");
accounts.modify( itr, 0, [&]( auto& acnt ) {
eosio_assert( acnt.eos_balance >= quantity, "insufficient balance" );
acnt.eos_balance -= quantity;
});
action(
permission_level{ _self, N(active) },
N(eosio.token), N(transfer),
std::make_tuple(_self, to, quantity, std::string(""))
).send();
if( itr->is_empty() ) {
accounts.erase(itr);
}
}
void token::transfer( account_name from,
account_name to,
asset quantity,
string memo )
{
eosio_assert( from != to, "cannot transfer to self" );
require_auth( from );
eosio_assert( is_account( to ), "to account does not exist");
auto sym = quantity.symbol.name();
stats statstable( _self, sym );
const auto& st = statstable.get( sym );
require_recipient( from );
require_recipient( to );
eosio_assert( quantity.is_valid(), "invalid quantity" );
eosio_assert( quantity.amount > 0, "must transfer positive quantity" );
eosio_assert( quantity.symbol == st.supply.symbol, "symbol precision mismatch" );
eosio_assert( memo.size() <= 256, "memo has more than 256 bytes" );
sub_balance( from, quantity );
add_balance( to, quantity, from );
}
friend asset operator + (const asset& a, const asset& b) {
EOS_ASSERT(a.get_symbol() == b.get_symbol(), asset_type_exception, "addition between two different asset is not allowed");
return asset(a.amount + b.amount, a.get_symbol());
}
friend bool operator < (const asset& a, const asset& b)
{
EOS_ASSERT(a.get_symbol() == b.get_symbol(), asset_type_exception, "logical operation between two different asset is not allowed");
return std::tie(a.amount,a.get_symbol()) < std::tie(b.amount,b.get_symbol());
}
friend bool operator == (const asset& a, const asset& b)
{
return std::tie(a.get_symbol(), a.amount) == std::tie(b.get_symbol(), b.amount);
}
trx_output( const ClaimType& t, const asset& a )
:amount(a.get_rounded_amount()),unit(a.unit)
{
claim_func = ClaimType::type;
claim_data = fc::raw::pack(t);
}
void transaction_evaluation_state::add_output_asset( asset a )
{
auto itr = total.find( a.unit );
if( itr == total.end() ) total[a.unit].out = a.get_rounded_amount();
else itr->second.out += a.get_rounded_amount();
}
double to_real()const { return base.to_real() / quote.to_real(); }
void transaction_evaluation_state::add_required_fees( asset a )
{
auto itr = total.find( a.unit );
if( itr == total.end() ) total[a.unit].required_fees = a.get_rounded_amount();
else itr->second.required_fees += a.get_rounded_amount();
}
