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SON212-SON213 - Add Sidechain Plugin Code to report and approve SON Down proposal (#260)

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* SON212 - Add Sidechain Plugin Code to report SON Down

* SON212-SON213 - Add Sidechain Plugin Code to report SON Down, Approve proposal from sidechain plugin
This commit is contained in:
satyakoneru 2020-01-15 00:13:02 +11:00 committed by Bobinson K B
parent 6fe0acb12d
commit 77927da236
1 changed files with 114 additions and 2 deletions
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116
libraries/plugins/peerplays_sidechain/peerplays_sidechain_plugin.cpp
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@ -2,6 +2,7 @@
#include <fc/log/logger.hpp>
#include <graphene/chain/sidechain_address_object.hpp>
#include <graphene/chain/proposal_object.hpp>
#include <graphene/peerplays_sidechain/sidechain_net_manager.hpp>
#include <graphene/utilities/key_conversion.hpp>
@ -25,6 +26,9 @@ class peerplays_sidechain_plugin_impl
void plugin_startup();
void schedule_heartbeat_loop();
void heartbeat_loop();
chain::proposal_create_operation create_son_down_proposal(chain::son_id_type son_id, fc::time_point_sec last_active_ts);
void on_block_applied( const signed_block& b );
void on_objects_new(const vector<object_id_type>& new_object_ids);
private:
peerplays_sidechain_plugin& plugin;
@ -182,7 +186,6 @@ void peerplays_sidechain_plugin_impl::heartbeat_loop()
chain::database& d = plugin.database();
chain::son_id_type son_id = *(_sons.begin());
const chain::global_property_object& gpo = d.get_global_properties();
vector<son_id_type> active_son_ids;
active_son_ids.reserve(gpo.active_sons.size());
std::transform(gpo.active_sons.begin(), gpo.active_sons.end(),
@ -207,7 +210,7 @@ void peerplays_sidechain_plugin_impl::heartbeat_loop()
plugin.app().p2p_node()->broadcast(net::trx_message(trx));
return true;
} catch(fc::exception e){
ilog("peerplays_sidechain_plugin: sending heartbeat failed with exception ${e}",("e", e.what()));
ilog("peerplays_sidechain_plugin_impl: sending heartbeat failed with exception ${e}",("e", e.what()));
return false;
}
});
@ -216,6 +219,113 @@ void peerplays_sidechain_plugin_impl::heartbeat_loop()
schedule_heartbeat_loop();
}
chain::proposal_create_operation peerplays_sidechain_plugin_impl::create_son_down_proposal(chain::son_id_type son_id, fc::time_point_sec last_active_ts)
{
chain::database& d = plugin.database();
chain::son_id_type my_son_id = *(_sons.begin());
const chain::global_property_object& gpo = d.get_global_properties();
const auto& idx = d.get_index_type<chain::son_index>().indices().get<by_id>();
auto son_obj = idx.find( my_son_id );
chain::son_report_down_operation son_down_op;
son_down_op.payer = gpo.parameters.get_son_btc_account_id();
son_down_op.son_id = son_id;
son_down_op.down_ts = last_active_ts;
proposal_create_operation proposal_op;
proposal_op.fee_paying_account = son_obj->son_account;
proposal_op.proposed_ops.push_back( op_wrapper( son_down_op ) );
uint32_t lifetime = ( gpo.parameters.block_interval * gpo.active_witnesses.size() ) * 3;
proposal_op.expiration_time = time_point_sec( d.head_block_time().sec_since_epoch() + lifetime );
return proposal_op;
}
void peerplays_sidechain_plugin_impl::on_block_applied( const signed_block& b )
{
chain::database& d = plugin.database();
chain::son_id_type my_son_id = *(_sons.begin());
const chain::global_property_object& gpo = d.get_global_properties();
// Return if there are no active SONs
if(gpo.active_sons.size() <= 0) {
return;
}
chain::son_id_type next_son_id = d.get_scheduled_son(1);
if(next_son_id == my_son_id) {
const auto& idx = d.get_index_type<chain::son_index>().indices().get<by_id>();
for(auto son_id: gpo.active_sons) {
auto son_obj = idx.find( son_id );
auto stats = son_obj->statistics(d);
fc::time_point_sec last_active_ts = stats.last_active_timestamp;
int64_t down_threshold = 2*180000000;
if((fc::time_point::now() - last_active_ts) > fc::microseconds(down_threshold)) {
chain::proposal_create_operation op = create_son_down_proposal(son_id, last_active_ts);
chain::signed_transaction trx = d.create_signed_transaction(_private_keys.begin()->second, op);
fc::future<bool> fut = fc::async( [&](){
try {
d.push_transaction(trx);
plugin.app().p2p_node()->broadcast(net::trx_message(trx));
return true;
} catch(fc::exception e){
ilog("peerplays_sidechain_plugin_impl: sending son down proposal failed with exception ${e}",("e", e.what()));
return false;
}
});
fut.wait(fc::seconds(10));
}
}
}
}
void peerplays_sidechain_plugin_impl::on_objects_new(const vector<object_id_type>& new_object_ids)
{
chain::database& d = plugin.database();
chain::son_id_type my_son_id = *(_sons.begin());
const chain::global_property_object& gpo = d.get_global_properties();
const auto& idx = d.get_index_type<chain::son_index>().indices().get<by_id>();
auto son_obj = idx.find( my_son_id );
auto it = std::find(gpo.active_sons.begin(), gpo.active_sons.end(), my_son_id);
if(it == gpo.active_sons.end()) {
return;
}
auto approve_proposal = [ & ]( const chain::proposal_id_type& id )
{
chain::proposal_update_operation puo;
puo.fee_paying_account = son_obj->son_account;
puo.proposal = id;
puo.active_approvals_to_add = { son_obj->son_account };
chain::signed_transaction trx = d.create_signed_transaction(_private_keys.begin()->second, puo);
fc::future<bool> fut = fc::async( [&](){
try {
d.push_transaction(trx);
plugin.app().p2p_node()->broadcast(net::trx_message(trx));
return true;
} catch(fc::exception e){
ilog("peerplays_sidechain_plugin_impl: sending approval failed with exception ${e}",("e", e.what()));
return false;
}
});
fut.wait(fc::seconds(10));
};
for(auto object_id: new_object_ids) {
if( object_id.is<chain::proposal_object>() ) {
const object* obj = d.find_object(object_id);
const chain::proposal_object* proposal = dynamic_cast<const chain::proposal_object*>(obj);
if(proposal == nullptr) {
return;
}
if(proposal->proposed_transaction.operations.size() == 1
&& proposal->proposed_transaction.operations[0].which() == chain::operation::tag<chain::son_report_down_operation>::value) {
approve_proposal( proposal->id );
}
}
}
}
} // end namespace detail
peerplays_sidechain_plugin::peerplays_sidechain_plugin() :
@ -245,6 +355,8 @@ void peerplays_sidechain_plugin::plugin_initialize(const boost::program_options:
{
ilog("peerplays sidechain plugin: plugin_initialize()");
my->plugin_initialize(options);
database().applied_block.connect( [&]( const signed_block& b){ my->on_block_applied(b); } );
database().new_objects.connect([this](const vector<object_id_type>& ids, const flat_set<account_id_type>& impacted_accounts) { my->on_objects_new(ids); });
}
void peerplays_sidechain_plugin::plugin_startup()