0.8.0

CORE precision

Precision asset ECHO now 8

New list of operations

typedef fc::static_variant<
transfer_operation,
limit_order_create_operation,
limit_order_cancel_operation,
call_order_update_operation,
fill_order_operation, // VIRTUAL
account_create_operation,
account_update_operation,
account_whitelist_operation,
account_upgrade_operation,
account_transfer_operation,
asset_create_operation,
asset_update_operation,
asset_update_bitasset_operation,
asset_update_feed_producers_operation,
asset_issue_operation,
asset_reserve_operation,
asset_fund_fee_pool_operation,
asset_settle_operation,
asset_global_settle_operation,
asset_publish_feed_operation,
proposal_create_operation,
proposal_update_operation,
proposal_delete_operation,
withdraw_permission_create_operation,
withdraw_permission_update_operation,
withdraw_permission_claim_operation,
withdraw_permission_delete_operation,
committee_member_create_operation,
committee_member_update_operation,
committee_member_update_global_parameters_operation,
vesting_balance_create_operation,
vesting_balance_withdraw_operation,
custom_operation,
assert_operation,
balance_claim_operation,
override_transfer_operation,
asset_settle_cancel_operation, // VIRTUAL
asset_claim_fees_operation,
bid_collateral_operation,
execute_bid_operation, // VIRTUAL
create_contract_operation,
call_contract_operation,
contract_transfer_operation,
change_sidechain_config_operation, // Temporary operation for tests
account_address_create_operation,
transfer_to_address_operation,
generate_eth_address_operation,
create_eth_address_operation,
deposit_eth_operation,
withdraw_eth_operation,
approve_withdraw_eth_operation,
contract_fund_pool_operation,
contract_whitelist_operation,
sidechain_issue_operation, // VIRTUAL
sidechain_burn_operation, // VIRTUAL
register_erc20_token_operation,
deposit_erc20_token_operation,
withdraw_erc20_token_operation,
approve_erc20_token_withdraw_operation,
contract_update_operation
> operation;

New objects order

enum object_type
{
null_object_type,
base_object_type,
account_object_type,
asset_object_type,
force_settlement_object_type,
committee_member_object_type,
limit_order_object_type,
call_order_object_type,
custom_object_type,
proposal_object_type,
operation_history_object_type,
withdraw_permission_object_type,
vesting_balance_object_type,
balance_object_type,
contract_object_type,
contract_result_object_type,
block_result_object_type,
eth_address_object_type,
deposit_eth_object_type,
withdraw_eth_object_type,
erc20_token_object_type,
deposit_erc20_token_object_type,
withdraw_erc20_token_object_type,
OBJECT_TYPE_COUNT ///< Sentry value which contains the number of different object types
};
enum impl_object_type
{
impl_global_property_object_type,
impl_dynamic_global_property_object_type,
impl_reserved0_object_type,
impl_asset_dynamic_data_type,
impl_asset_bitasset_data_type,
impl_account_balance_object_type,
impl_account_statistics_object_type,
impl_transaction_object_type,
impl_block_summary_object_type,
impl_account_transaction_history_object_type,
impl_chain_property_object_type,
impl_budget_record_object_type,
impl_special_authority_object_type,
impl_buyback_object_type,
impl_collateral_bid_object_type,
impl_contract_balance_object_type,
impl_contract_history_object_type,
impl_contract_statistics_object_type,
impl_account_address_object_type,
impl_contract_pool_object_type,
impl_malicious_committeemen_object_type
};

extensions

Many objects lacked the required extensions field, which is of type flat_set<static_variant<void_t>>. Added last field in the following operations and objects:

Operations:

balance_claim_operation, committee_member_create_operation, committee_member_update_operation, committee_member_update_global_parameters_operation, create_contract_operation, call_contract_operation, contract_fund_pool_operation, contract_whitelist_operation, custom_operation, fill_order_operation, execute_bid_operation, change_sidechain_config_operation, sidechain_issue_operation, sidechain_burn_operation, vesting_balance_create_operation, vesting_balance_withdraw_operation, withdraw_permission_claim_operation, withdraw_permission_delete_operation

Objects:

account_address_object, account_statistics_object, account_balance_object, account_object, contract_balance_object, contract_object, contract_statistics_object, contract_result_object, block_result_object, eth_address_object, deposit_eth_object, withdraw_eth_object, asset_dynamic_data_object, asset_object, asset_bitasset_data_object, limit_order_object, call_order_object, force_settlement_object, collateral_bid_object, committee_member_object, proposal_object, operation_history_object, account_transaction_history_object, contract_history_object, withdraw_permission_object, vesting_balance_object, balance_object, dynamic_global_property_object, contract_pool_object, transaction_object, block_summary_object, chain_property_object, budget_record_object, special_authority_object, buyback_object

As an example of use extensions - asset_create_operation.

price_per_kbyte

Of options fee in operations transfer_operation, override_transfer_operation, withdraw_permission_claim_operation field is removed price_per_kbyte.

chain_parameters

Field is added to the sidechain::erc20_config erc20_config after sidechain_config.

struct erc20_config
{
std::string contract_code;
uint64_t create_token_fee;
std::string transfer_topic;
eth_method check_balance_method;
eth_method burn_method;
eth_method issue_method;
};

contract_object

Moved field type

class contract_object
{
public:
echo::vm::vm_type type;
bool destroyed = false;
contract_statistics_id_type statistics;
fc::optional<asset_id_type> supported_asset_id;
fc::optional<account_id_type> owner;
extensions_type extensions;
}

contract_fund_pool_operation

Moved field fee

struct contract_fund_pool_operation
{
asset fee;
account_id_type sender;
contract_id_type contract;
asset value;
extensions_type extensions;
}

contract_whitelist_operation

Moved field fee

struct contract_whitelist_operation
{
asset fee;
account_id_type sender;
contract_id_type contract;
set<account_id_type> add_to_whitelist;
set<account_id_type> remove_from_whitelist;
set<account_id_type> add_to_blacklist;
set<account_id_type> remove_from_blacklist;
extensions_type extensions;
}

contract_update_operation

Added a new operation to update the contract owner.

struct contract_update_operation : public base_operation
{
asset fee;
account_id_type sender;
contract_id_type contract;
fc::optional<account_id_type> new_owner;
extensions_type extensions;
};

account_statistics_object

Added fields generated_eth_address, committeeman_rating. New field order

class account_statistics_object
{
account_id_type owner;
account_transaction_history_id_type most_recent_op;
uint32_t total_ops = 0;
uint32_t removed_ops = 0;
uint32_t total_blocks = 0;
share_type total_core_in_orders;
share_type lifetime_fees_paid;
share_type pending_fees;
share_type pending_vested_fees;
bool generated_eth_address = false;
int64_t committeeman_rating = 0;
extensions_type extensions;
};

account_address_create_operation

Changed parameters fee:

struct fee_parameters_type
{
uint64_t fee = 5*ECHO_BLOCKCHAIN_PRECISION; ///< the cost to register the cheapest non-free account
uint32_t price_per_kbyte = ECHO_BLOCKCHAIN_PRECISION;
};

committee_member_create_operation

Field eth_address now a set of bytes serialized as vector<char> of size 20.

committee_member_update_operation

Field new_eth_address now a set of bytes serialized as vector<char> of size 20.

withdraw_eth_operation

Field eth_addr now a set of bytes serialized as vector<char> of size 20.

register_erc20_token_operation

Used to register a token in the sidechain.

struct register_erc20_token_operation
{
asset fee;
account_id_type account;
eth_address_type eth_addr; // address of the contract in ethereum
extensions_type extensions;
};

deposit_erc20_token_operation

An internal operation by which committee members confirm the entry of tokens.

struct deposit_erc20_token_operation
asset fee;
account_id_type committee_member_id;
std::vector<account_id_type> malicious_committeemen;
account_id_type account;
eth_address_type erc20_token_addr; // address of the contract in ethereum
std::string value;
sha256 transaction_hash;
extensions_type extensions;
};

withdraw_erc20_token_operation

Executed by the user and initiates the withdrawal of the token from the Echo network to the specified address.

struct withdraw_erc20_token_operation
{
asset fee;
account_id_type account;
eth_address_type to; // withdrawal address
erc20_token_id_type erc20_token; // contract id of the token
std::string value;
extensions_type extensions;
};

approve_erc20_token_withdraw_operation

An internal operation by which committee members confirm the removal of tokens.

struct approve_erc20_token_withdraw_operation
{
asset fee;
account_id_type committee_member_id;
eth_address_type to;
std::string value;
sha256 transaction_hash;
extensions_type extensions;
};

malicious_committeemen_object

class malicious_committeemen_object
{
object_id_type related;
std::map<std::vector<account_id_type>, uint16_t> sets_of_malicious;
};

erc20_token_object

class erc20_token_object : public abstract_object<erc20_token_object>
{
account_id_type owner;
eth_address_type eth_addr;
contract_id_type contract;
};

deposit_erc20_token_object

class deposit_erc20_token_object : public abstract_object<deposit_erc20_token_object>
{
account_id_type account;
eth_address_type erc20_addr;
std::string value;
sha256 transaction_hash;
bool is_approved = false;
set<account_id_type> approves;
};

withdraw_erc20_token_object

class withdraw_erc20_token_object : public abstract_object<withdraw_erc20_token_object>
{
uint64_t withdraw_id = 0;
account_id_type account;
eth_address_type to;
erc20_token_id_type erc20_token;
std::string value;
sha256 transaction_hash;
bool is_approved = false;
set<account_id_type> approves;
};

sidechain::config

eth_contract_address - now is a set of bytes with a length of 20.

New field:

eth_method eth_withdraw_token_method;
eth_method eth_collect_tokens_method;
std::string erc20_deposit_topic;
sidechain_fines fines;
uint32_t waiting_blocks;
struct sidechain_fines
{
int64_t generate_eth_address;
};
struct config
{
eth_address_type eth_contract_address;
eth_method eth_committee_update_method;
eth_method eth_gen_address_method;
eth_method eth_withdraw_method;
eth_method eth_update_addr_method;
eth_method eth_withdraw_token_method;
eth_method eth_collect_tokens_method;
std::string eth_committee_updated_topic;
std::string eth_gen_address_topic;
std::string eth_deposit_topic;
std::string eth_withdraw_topic;
std::string erc20_deposit_topic;
graphene::chain::asset_id_type ETH_asset_id;
sidechain_fines fines;
uint32_t waiting_blocks;
}