bool database::fill_order(const force_settlement_object& settle, const asset& pays, const asset& receives)
{ try {
bool filled = false;
auto issuer_fees = pay_market_fees(get(receives.asset_id), receives);
if( pays < settle.balance )
{
modify(settle, [&pays](force_settlement_object& s) {
s.balance -= pays;
});
filled = false;
} else {
filled = true;
}
adjust_balance(settle.owner, receives - issuer_fees);
assert( pays.asset_id != receives.asset_id );
push_applied_operation( fill_order_operation{ settle.id, settle.owner, pays, receives, issuer_fees } );
if (filled)
remove(settle);
return filled;
} FC_CAPTURE_AND_RETHROW( (settle)(pays)(receives) ) }
void database::pay_order( const account_object& receiver, const asset& receives, const asset& pays )
{
const auto& balances = receiver.statistics(*this);
modify( balances, [&]( account_statistics_object& b ){
if( pays.asset_id == asset_id_type() )
b.total_core_in_orders -= pays.amount;
});
adjust_balance(receiver.get_id(), receives);
}
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) ) }
void database::init_genesis(const genesis_state_type& genesis_state)
{ try {
FC_ASSERT( genesis_state.initial_timestamp != time_point_sec(), "Must initialize genesis timestamp." );
FC_ASSERT( genesis_state.initial_timestamp.sec_since_epoch() % GRAPHENE_DEFAULT_BLOCK_INTERVAL == 0,
"Genesis timestamp must be divisible by GRAPHENE_DEFAULT_BLOCK_INTERVAL." );
FC_ASSERT(genesis_state.initial_witness_candidates.size() > 0,
"Cannot start a chain with zero witnesses.");
FC_ASSERT(genesis_state.initial_active_witnesses <= genesis_state.initial_witness_candidates.size(),
"initial_active_witnesses is larger than the number of candidate witnesses.");
_undo_db.disable();
struct auth_inhibitor {
auth_inhibitor(database& db) : db(db), old_flags(db.node_properties().skip_flags)
{ db.node_properties().skip_flags |= skip_authority_check; }
~auth_inhibitor()
{ db.node_properties().skip_flags = old_flags; }
private:
database& db;
uint32_t old_flags;
} inhibitor(*this);
transaction_evaluation_state genesis_eval_state(this);
flat_index<block_summary_object>& bsi = get_mutable_index_type< flat_index<block_summary_object> >();
bsi.resize(0xffff+1);
// Create blockchain accounts
fc::ecc::private_key null_private_key = fc::ecc::private_key::regenerate(fc::sha256::hash(string("null_key")));
create<account_balance_object>([](account_balance_object& b) {
b.balance = GRAPHENE_MAX_SHARE_SUPPLY;
});
const account_object& committee_account =
create<account_object>( [&](account_object& n) {
n.membership_expiration_date = time_point_sec::maximum();
n.network_fee_percentage = GRAPHENE_DEFAULT_NETWORK_PERCENT_OF_FEE;
n.lifetime_referrer_fee_percentage = GRAPHENE_100_PERCENT - GRAPHENE_DEFAULT_NETWORK_PERCENT_OF_FEE;
n.owner.weight_threshold = 1;
n.active.weight_threshold = 1;
n.name = "committee-account";
n.statistics = create<account_statistics_object>( [&](account_statistics_object& s){ s.owner = n.id; }).id;
});
FC_ASSERT(committee_account.get_id() == GRAPHENE_COMMITTEE_ACCOUNT);
FC_ASSERT(create<account_object>([this](account_object& a) {
a.name = "witness-account";
a.statistics = create<account_statistics_object>([&](account_statistics_object& s){s.owner = a.id;}).id;
a.owner.weight_threshold = 1;
a.active.weight_threshold = 1;
a.registrar = a.lifetime_referrer = a.referrer = GRAPHENE_WITNESS_ACCOUNT;
a.membership_expiration_date = time_point_sec::maximum();
a.network_fee_percentage = GRAPHENE_DEFAULT_NETWORK_PERCENT_OF_FEE;
a.lifetime_referrer_fee_percentage = GRAPHENE_100_PERCENT - GRAPHENE_DEFAULT_NETWORK_PERCENT_OF_FEE;
}).get_id() == GRAPHENE_WITNESS_ACCOUNT);
FC_ASSERT(create<account_object>([this](account_object& a) {
a.name = "relaxed-committee-account";
a.statistics = create<account_statistics_object>([&](account_statistics_object& s){s.owner = a.id;}).id;
a.owner.weight_threshold = 1;
a.active.weight_threshold = 1;
a.registrar = a.lifetime_referrer = a.referrer = GRAPHENE_RELAXED_COMMITTEE_ACCOUNT;
a.membership_expiration_date = time_point_sec::maximum();
a.network_fee_percentage = GRAPHENE_DEFAULT_NETWORK_PERCENT_OF_FEE;
a.lifetime_referrer_fee_percentage = GRAPHENE_100_PERCENT - GRAPHENE_DEFAULT_NETWORK_PERCENT_OF_FEE;
}).get_id() == GRAPHENE_RELAXED_COMMITTEE_ACCOUNT);
FC_ASSERT(create<account_object>([this](account_object& a) {
a.name = "null-account";
a.statistics = create<account_statistics_object>([&](account_statistics_object& s){s.owner = a.id;}).id;
a.owner.weight_threshold = 1;
a.active.weight_threshold = 1;
a.registrar = a.lifetime_referrer = a.referrer = GRAPHENE_NULL_ACCOUNT;
a.membership_expiration_date = time_point_sec::maximum();
a.network_fee_percentage = 0;
a.lifetime_referrer_fee_percentage = GRAPHENE_100_PERCENT;
}).get_id() == GRAPHENE_NULL_ACCOUNT);
FC_ASSERT(create<account_object>([this](account_object& a) {
a.name = "temp-account";
a.statistics = create<account_statistics_object>([&](account_statistics_object& s){s.owner = a.id;}).id;
a.owner.weight_threshold = 0;
a.active.weight_threshold = 0;
a.registrar = a.lifetime_referrer = a.referrer = GRAPHENE_TEMP_ACCOUNT;
a.membership_expiration_date = time_point_sec::maximum();
a.network_fee_percentage = GRAPHENE_DEFAULT_NETWORK_PERCENT_OF_FEE;
a.lifetime_referrer_fee_percentage = GRAPHENE_100_PERCENT - GRAPHENE_DEFAULT_NETWORK_PERCENT_OF_FEE;
}).get_id() == GRAPHENE_TEMP_ACCOUNT);
FC_ASSERT(create<account_object>([this](account_object& a) {
a.name = "proxy-to-self";
a.statistics = create<account_statistics_object>([&](account_statistics_object& s){s.owner = a.id;}).id;
a.owner.weight_threshold = 1;
a.active.weight_threshold = 1;
a.registrar = a.lifetime_referrer = a.referrer = GRAPHENE_NULL_ACCOUNT;
a.membership_expiration_date = time_point_sec::maximum();
a.network_fee_percentage = 0;
a.lifetime_referrer_fee_percentage = GRAPHENE_100_PERCENT;
}).get_id() == GRAPHENE_PROXY_TO_SELF_ACCOUNT);
// Create more special accounts
while( true )
{
uint64_t id = get_index<account_object>().get_next_id().instance();
if( id >= genesis_state.immutable_parameters.num_special_accounts )
break;
const account_object& acct = create<account_object>([&](account_object& a) {
a.name = "special-account-" + std::to_string(id);
a.statistics = create<account_statistics_object>([&](account_statistics_object& s){s.owner = a.id;}).id;
a.owner.weight_threshold = 1;
a.active.weight_threshold = 1;
a.registrar = a.lifetime_referrer = a.referrer = id;
a.membership_expiration_date = time_point_sec::maximum();
a.network_fee_percentage = GRAPHENE_DEFAULT_NETWORK_PERCENT_OF_FEE;
a.lifetime_referrer_fee_percentage = GRAPHENE_100_PERCENT - GRAPHENE_DEFAULT_NETWORK_PERCENT_OF_FEE;
});
FC_ASSERT( acct.get_id() == account_id_type(id) );
remove( acct );
}
// Create core asset
const asset_dynamic_data_object& dyn_asset =
create<asset_dynamic_data_object>([&](asset_dynamic_data_object& a) {
a.current_supply = GRAPHENE_MAX_SHARE_SUPPLY;
});
const asset_object& core_asset =
create<asset_object>( [&]( asset_object& a ) {
a.symbol = GRAPHENE_SYMBOL;
a.options.max_supply = genesis_state.max_core_supply;
a.precision = GRAPHENE_BLOCKCHAIN_PRECISION_DIGITS;
a.options.flags = 0;
a.options.issuer_permissions = 0;
a.issuer = GRAPHENE_NULL_ACCOUNT;
a.options.core_exchange_rate.base.amount = 1;
a.options.core_exchange_rate.base.asset_id = 0;
a.options.core_exchange_rate.quote.amount = 1;
a.options.core_exchange_rate.quote.asset_id = 0;
a.dynamic_asset_data_id = dyn_asset.id;
});
assert( asset_id_type(core_asset.id) == asset().asset_id );
assert( get_balance(account_id_type(), asset_id_type()) == asset(dyn_asset.current_supply) );
// Create more special assets
while( true )
{
uint64_t id = get_index<asset_object>().get_next_id().instance();
if( id >= genesis_state.immutable_parameters.num_special_assets )
break;
const asset_dynamic_data_object& dyn_asset =
create<asset_dynamic_data_object>([&](asset_dynamic_data_object& a) {
a.current_supply = 0;
});
const asset_object& asset_obj = create<asset_object>( [&]( asset_object& a ) {
a.symbol = "SPECIAL" + std::to_string( id );
a.options.max_supply = 0;
a.precision = GRAPHENE_BLOCKCHAIN_PRECISION_DIGITS;
a.options.flags = 0;
a.options.issuer_permissions = 0;
a.issuer = GRAPHENE_NULL_ACCOUNT;
a.options.core_exchange_rate.base.amount = 1;
a.options.core_exchange_rate.base.asset_id = 0;
a.options.core_exchange_rate.quote.amount = 1;
a.options.core_exchange_rate.quote.asset_id = 0;
a.dynamic_asset_data_id = dyn_asset.id;
});
FC_ASSERT( asset_obj.get_id() == asset_id_type(id) );
remove( asset_obj );
}
chain_id_type chain_id = genesis_state.compute_chain_id();
// Create global properties
create<global_property_object>([&](global_property_object& p) {
p.parameters = genesis_state.initial_parameters;
// Set fees to zero initially, so that genesis initialization needs not pay them
// We'll fix it at the end of the function
p.parameters.current_fees->zero_all_fees();
});
create<dynamic_global_property_object>([&](dynamic_global_property_object& p) {
p.time = genesis_state.initial_timestamp;
p.dynamic_flags = 0;
p.witness_budget = 0;
p.recent_slots_filled = fc::uint128::max_value();
});
FC_ASSERT( (genesis_state.immutable_parameters.min_witness_count & 1) == 1, "min_witness_count must be odd" );
FC_ASSERT( (genesis_state.immutable_parameters.min_committee_member_count & 1) == 1, "min_committee_member_count must be odd" );
create<chain_property_object>([&](chain_property_object& p)
{
p.chain_id = chain_id;
p.immutable_parameters = genesis_state.immutable_parameters;
} );
create<block_summary_object>([&](block_summary_object&) {});
// Create initial accounts
for( const auto& account : genesis_state.initial_accounts )
{
account_create_operation cop;
cop.name = account.name;
cop.registrar = GRAPHENE_TEMP_ACCOUNT;
cop.owner = authority(1, account.owner_key, 1);
if( account.active_key == public_key_type() )
{
cop.active = cop.owner;
cop.options.memo_key = account.owner_key;
}
else
{
cop.active = authority(1, account.active_key, 1);
cop.options.memo_key = account.active_key;
}
account_id_type account_id(apply_operation(genesis_eval_state, cop).get<object_id_type>());
if( account.is_lifetime_member )
{
account_upgrade_operation op;
op.account_to_upgrade = account_id;
op.upgrade_to_lifetime_member = true;
apply_operation(genesis_eval_state, op);
}
}
// Helper function to get account ID by name
const auto& accounts_by_name = get_index_type<account_index>().indices().get<by_name>();
auto get_account_id = [&accounts_by_name](const string& name) {
auto itr = accounts_by_name.find(name);
FC_ASSERT(itr != accounts_by_name.end(),
"Unable to find account '${acct}'. Did you forget to add a record for it to initial_accounts?",
("acct", name));
return itr->get_id();
};
// Helper function to get asset ID by symbol
const auto& assets_by_symbol = get_index_type<asset_index>().indices().get<by_symbol>();
const auto get_asset_id = [&assets_by_symbol](const string& symbol) {
auto itr = assets_by_symbol.find(symbol);
// TODO: This is temporary for handling BTS snapshot
if( symbol == "BTS" )
itr = assets_by_symbol.find(GRAPHENE_SYMBOL);
FC_ASSERT(itr != assets_by_symbol.end(),
"Unable to find asset '${sym}'. Did you forget to add a record for it to initial_assets?",
("sym", symbol));
return itr->get_id();
};
map<asset_id_type, share_type> total_supplies;
map<asset_id_type, share_type> total_debts;
// Create initial assets
for( const genesis_state_type::initial_asset_type& asset : genesis_state.initial_assets )
{
asset_id_type new_asset_id = get_index_type<asset_index>().get_next_id();
total_supplies[ new_asset_id ] = 0;
asset_dynamic_data_id_type dynamic_data_id;
optional<asset_bitasset_data_id_type> bitasset_data_id;
if( asset.is_bitasset )
{
int collateral_holder_number = 0;
total_debts[ new_asset_id ] = 0;
for( const auto& collateral_rec : asset.collateral_records )
{
account_create_operation cop;
cop.name = asset.symbol + "-collateral-holder-" + std::to_string(collateral_holder_number);
boost::algorithm::to_lower(cop.name);
cop.registrar = GRAPHENE_TEMP_ACCOUNT;
cop.owner = authority(1, collateral_rec.owner, 1);
cop.active = cop.owner;
account_id_type owner_account_id = apply_operation(genesis_eval_state, cop).get<object_id_type>();
modify( owner_account_id(*this).statistics(*this), [&]( account_statistics_object& o ) {
o.total_core_in_orders = collateral_rec.collateral;
});
create<call_order_object>([&](call_order_object& c) {
c.borrower = owner_account_id;
c.collateral = collateral_rec.collateral;
c.debt = collateral_rec.debt;
c.call_price = price::call_price(chain::asset(c.debt, new_asset_id),
chain::asset(c.collateral, core_asset.id),
GRAPHENE_DEFAULT_MAINTENANCE_COLLATERAL_RATIO);
});
total_supplies[ 0 ] += collateral_rec.collateral;
total_debts[ new_asset_id ] += collateral_rec.debt;
++collateral_holder_number;
}
bitasset_data_id = create<asset_bitasset_data_object>([&](asset_bitasset_data_object& b) {
b.options.short_backing_asset = core_asset.id;
b.options.minimum_feeds = GRAPHENE_DEFAULT_MINIMUM_FEEDS;
}).id;
}
dynamic_data_id = create<asset_dynamic_data_object>([&](asset_dynamic_data_object& d) {
d.accumulated_fees = asset.accumulated_fees;
}).id;
total_supplies[ new_asset_id ] += asset.accumulated_fees;
create<asset_object>([&](asset_object& a) {
a.symbol = asset.symbol;
a.options.description = asset.description;
a.precision = asset.precision;
string issuer_name = asset.issuer_name;
a.issuer = get_account_id(issuer_name);
a.options.max_supply = asset.max_supply;
a.options.flags = witness_fed_asset;
a.options.issuer_permissions = charge_market_fee | global_settle | witness_fed_asset | committee_fed_asset;
a.dynamic_asset_data_id = dynamic_data_id;
a.bitasset_data_id = bitasset_data_id;
});
}
// Create initial balances
share_type total_allocation;
for( const auto& handout : genesis_state.initial_balances )
{
const auto asset_id = get_asset_id(handout.asset_symbol);
create<balance_object>([&handout,&get_asset_id,total_allocation,asset_id](balance_object& b) {
b.balance = asset(handout.amount, asset_id);
b.owner = handout.owner;
});
total_supplies[ asset_id ] += handout.amount;
}
// Create initial vesting balances
for( const genesis_state_type::initial_vesting_balance_type& vest : genesis_state.initial_vesting_balances )
{
const auto asset_id = get_asset_id(vest.asset_symbol);
create<balance_object>([&](balance_object& b) {
b.owner = vest.owner;
b.balance = asset(vest.amount, asset_id);
linear_vesting_policy policy;
policy.begin_timestamp = vest.begin_timestamp;
policy.vesting_cliff_seconds = 0;
policy.vesting_duration_seconds = vest.vesting_duration_seconds;
policy.begin_balance = vest.begin_balance;
b.vesting_policy = std::move(policy);
});
total_supplies[ asset_id ] += vest.amount;
}
if( total_supplies[ 0 ] > 0 )
{
adjust_balance(GRAPHENE_COMMITTEE_ACCOUNT, -get_balance(GRAPHENE_COMMITTEE_ACCOUNT,{}));
}
else
{
total_supplies[ 0 ] = GRAPHENE_MAX_SHARE_SUPPLY;
}
const auto& idx = get_index_type<asset_index>().indices().get<by_symbol>();
auto it = idx.begin();
bool has_imbalanced_assets = false;
while( it != idx.end() )
{
if( it->bitasset_data_id.valid() )
{
auto supply_itr = total_supplies.find( it->id );
auto debt_itr = total_debts.find( it->id );
FC_ASSERT( supply_itr != total_supplies.end() );
FC_ASSERT( debt_itr != total_debts.end() );
if( supply_itr->second != debt_itr->second )
{
has_imbalanced_assets = true;
elog( "Genesis for asset ${aname} is not balanced\n"
" Debt is ${debt}\n"
" Supply is ${supply}\n",
("debt", debt_itr->second)
("supply", supply_itr->second)
);
}
}
++it;
}
FC_ASSERT( !has_imbalanced_assets );
// Save tallied supplies
for( const auto& item : total_supplies )
{
const auto asset_id = item.first;
const auto total_supply = item.second;
modify( get( asset_id ), [ & ]( asset_object& asset ) {
modify( get( asset.dynamic_asset_data_id ), [ & ]( asset_dynamic_data_object& asset_data ) {
asset_data.current_supply = total_supply;
} );
} );
}
// Create special witness account
const witness_object& wit = create<witness_object>([&](witness_object& w) {});
FC_ASSERT( wit.id == GRAPHENE_NULL_WITNESS );
remove(wit);
// Create initial witnesses
std::for_each(genesis_state.initial_witness_candidates.begin(), genesis_state.initial_witness_candidates.end(),
[&](const genesis_state_type::initial_witness_type& witness) {
witness_create_operation op;
op.witness_account = get_account_id(witness.owner_name);
op.block_signing_key = witness.block_signing_key;
apply_operation(genesis_eval_state, op);
});
// Create initial committee members
std::for_each(genesis_state.initial_committee_candidates.begin(), genesis_state.initial_committee_candidates.end(),
[&](const genesis_state_type::initial_committee_member_type& member) {
committee_member_create_operation op;
op.committee_member_account = get_account_id(member.owner_name);
apply_operation(genesis_eval_state, op);
});
// Create initial workers
std::for_each(genesis_state.initial_worker_candidates.begin(), genesis_state.initial_worker_candidates.end(),
[&](const genesis_state_type::initial_worker_type& worker)
{
worker_create_operation op;
op.owner = get_account_id(worker.owner_name);
op.work_begin_date = genesis_state.initial_timestamp;
op.work_end_date = time_point_sec::maximum();
op.daily_pay = worker.daily_pay;
op.name = "Genesis-Worker-" + worker.owner_name;
op.initializer = vesting_balance_worker_initializer{uint16_t(0)};
apply_operation(genesis_eval_state, std::move(op));
});
// Set active witnesses
modify(get_global_properties(), [&](global_property_object& p) {
for( uint32_t i = 1; i <= genesis_state.initial_active_witnesses; ++i )
{
p.active_witnesses.insert(i);
p.witness_accounts.insert(get(witness_id_type(i)).witness_account);
}
});
// Enable fees
modify(get_global_properties(), [&genesis_state](global_property_object& p) {
p.parameters.current_fees = genesis_state.initial_parameters.current_fees;
});
// Create witness scheduler
create<witness_schedule_object>([&]( witness_schedule_object& wso )
{
for( const witness_id_type& wid : get_global_properties().active_witnesses )
wso.current_shuffled_witnesses.push_back( wid );
});
debug_dump();
_undo_db.enable();
} FC_CAPTURE_AND_RETHROW() }