Peerplays_Blockchain/peerplays_migrated
1
0
Fork 0
Code Issues 35 Pull requests 4 Projects Releases 20 Packages Wiki Activity Actions

Improve genesis block for PeerPlays

Browse source 
according http://syncad.storm.pl:56780/blocktrades/graphene/issues/1
    part 1
This commit is contained in:
Roman Olearski 2016-10-06 18:15:02 +02:00
parent 6f32a13079
commit 71a3cd49e1
1 changed files with 46 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

57
libraries/plugins/generate_genesis/generate_genesis.cpp
View file

@ -32,6 +32,8 @@
#include <fc/smart_ref_impl.hpp>
#include <fc/thread/thread.hpp>
#include <graphene/chain/market_object.hpp>
#include <iostream>
using namespace graphene::generate_genesis_plugin;
@ -122,25 +124,56 @@ void generate_genesis_plugin::generate_snapshot()
graphene::chain::genesis_state_type new_genesis_state;
chain::database& d = database();
// we'll distribute 5% of 1,000,000 tokens, so:
graphene::chain::share_type total_amount_to_distribute = 50000 * GRAPHENE_BLOCKCHAIN_PRECISION;
// walk through the balances; this index has the largest BTS balances first
// First, calculate the combined value of all BTS
// we need collection of mutable objects
std::vector<graphene::chain::account_balance_object> db_balances;
// copy const objects to our collection
auto& balance_index = d.get_index_type<graphene::chain::account_balance_index>().indices().get<graphene::chain::by_asset_balance>();
graphene::chain::share_type total_bts_balance;
graphene::chain::share_type total_shares_dropped;
for (auto balance_iter = balance_index.begin(); balance_iter != balance_index.end() && balance_iter->asset_type == graphene::chain::asset_id_type(); ++balance_iter)
if (!is_special_account(balance_iter->owner) && !is_exchange(balance_iter->owner(d).name))
total_bts_balance += balance_iter->balance;
db_balances.emplace_back(*balance_iter);
// walk through the balances; this index has the largest BTS balances first
// first, update BTS
// second, calculate the combined value of all BTS
graphene::chain::share_type total_bts_balance;
for (auto balance_iter = db_balances.begin(); balance_iter != db_balances.end(); ++balance_iter)
{
// BTS tied up in market orders
auto order_range = d.get_index_type<graphene::chain::limit_order_index>().indices().get<graphene::chain::by_account>().equal_range(balance_iter->owner);
std::for_each(order_range.first, order_range.second,
[&balance_iter] (const graphene::chain::limit_order_object& order) {
balance_iter->balance += order.amount_to_receive().amount; // ?
});
// BTS tied up in collateral for SmartCoins
auto collateral_range = d.get_index_type<graphene::chain::call_order_index>().indices().get<graphene::chain::by_account>().equal_range(balance_iter->owner);
std::for_each(collateral_range.first, collateral_range.second,
[&balance_iter] (const graphene::chain::call_order_object& order) {
balance_iter->balance += order.collateral; // ?
});
total_bts_balance += balance_iter->balance;
}
// todo : sort only if neccessary ?
sort(db_balances.begin(), db_balances.end(),
[](const graphene::chain::account_balance_object & a, const graphene::chain::account_balance_object & b) -> bool
{
return a.balance > b.balance;
});
graphene::chain::share_type total_shares_dropped;
// Now, we assume we're distributing balances to all BTS holders proportionally, figure
// the smallest balance we can distribute and still assign the user a satoshi of the share drop
graphene::chain::share_type effective_total_bts_balance;
auto balance_iter = balance_index.begin();
for (; balance_iter != balance_index.end() && balance_iter->asset_type == graphene::chain::asset_id_type(); ++balance_iter)
if (!is_special_account(balance_iter->owner) && !is_exchange(balance_iter->owner(d).name))
auto balance_iter = db_balances.begin(); // balance_index.begin();
//for (; balance_iter != balance_index.end() && balance_iter->asset_type == graphene::chain::asset_id_type(); ++balance_iter)
for (balance_iter = db_balances.begin(); balance_iter != db_balances.end(); ++balance_iter)
if (!is_special_account(balance_iter->owner) && !is_exchange(balance_iter->owner(d).name))
{
fc::uint128 share_drop_amount = total_amount_to_distribute.value;
share_drop_amount *= balance_iter->balance.value;
@ -170,11 +203,11 @@ void generate_genesis_plugin::generate_snapshot()
remaining_amount_to_distribute -= amount_distributed;
bts_balance_remaining -= balance_iter->balance.value;
}
} while (balance_iter != balance_index.begin());
} while (balance_iter != db_balances.begin());
assert(remaining_amount_to_distribute == 0);
auto& account_index = d.get_index_type<graphene::chain::account_index>();
auto& account_by_id_index = account_index.indices().get<graphene::chain::by_id>();
//auto& account_index = d.get_index_type<graphene::chain::account_index>();
//auto& account_by_id_index = account_index.indices().get<graphene::chain::by_id>();
// inefficient way of crawling the graph, but we only do it once
std::set<graphene::chain::account_id_type> already_generated;
for (;;)