Struct cfx_vm_types::Spec

source ·

pub struct Spec {Show 79 fields
    pub exceptional_failed_code_deposit: bool,
    pub stack_limit: usize,
    pub max_depth: usize,
    pub tier_step_gas: [usize; 8],
    pub exp_gas: usize,
    pub exp_byte_gas: usize,
    pub sha3_gas: usize,
    pub sha3_word_gas: usize,
    pub sload_gas: usize,
    pub sstore_set_gas: usize,
    pub sstore_reset_gas: usize,
    pub sstore_refund_gas: usize,
    pub tload_gas: usize,
    pub tstore_gas: usize,
    pub jumpdest_gas: usize,
    pub log_gas: usize,
    pub log_data_gas: usize,
    pub log_topic_gas: usize,
    pub create_gas: usize,
    pub call_gas: usize,
    pub call_stipend: usize,
    pub call_value_transfer_gas: usize,
    pub call_new_account_gas: usize,
    pub suicide_refund_gas: usize,
    pub memory_gas: usize,
    pub quad_coeff_div: usize,
    pub create_data_gas: usize,
    pub create_data_limit: usize,
    pub tx_gas: usize,
    pub tx_create_gas: usize,
    pub tx_data_zero_gas: usize,
    pub tx_data_non_zero_gas: usize,
    pub copy_gas: usize,
    pub extcodesize_gas: usize,
    pub extcodecopy_base_gas: usize,
    pub balance_gas: usize,
    pub extcodehash_gas: usize,
    pub suicide_gas: usize,
    pub retire_gas: usize,
    pub eip1820_gas: usize,
    pub access_list_storage_key_gas: usize,
    pub access_list_address_gas: usize,
    pub suicide_to_new_account_cost: usize,
    pub sub_gas_cap_divisor: Option<usize>,
    pub no_empty: bool,
    pub kill_empty: bool,
    pub blockhash_gas: usize,
    pub kill_dust: CleanDustMode,
    pub keep_unsigned_nonce: bool,
    pub wasm: Option<WasmCosts>,
    pub evm_gas_ratio: usize,
    pub cip43_init: bool,
    pub cip43_contract: bool,
    pub cip62: bool,
    pub cip64: bool,
    pub cip71: bool,
    pub cip78a: bool,
    pub cip78b: bool,
    pub cip90: bool,
    pub cip94: bool,
    pub cip94_activation_block_number: u64,
    pub params_dao_vote_period: u64,
    pub cip97: bool,
    pub cip98: bool,
    pub cip105: bool,
    pub cip_sigma_fix: bool,
    pub cip107: bool,
    pub cip118: bool,
    pub cip119: bool,
    pub cip131: bool,
    pub cip132: bool,
    pub cip133_b: BlockNumber,
    pub cip133_e: BlockHeight,
    pub cip133_core: bool,
    pub cip137: bool,
    pub cip1559: bool,
    pub cancun_opcodes: bool,
    pub cip144: bool,
    pub cip145: bool,
}

Expand description

Definition of the cost spec and other parameterisations for the VM.

Fields§

§exceptional_failed_code_deposit: bool

Does it support exceptional failed code deposit

§stack_limit: usize

VM stack limit

§max_depth: usize

Max number of nested calls/creates

§tier_step_gas: [usize; 8]

Gas prices for instructions in all tiers

§exp_gas: usize

Gas price for EXP opcode

§exp_byte_gas: usize

Additional gas for EXP opcode for each byte of exponent

§sha3_gas: usize

Gas price for SHA3 opcode

§sha3_word_gas: usize

Additional gas for SHA3 opcode for each word of hashed memory

§sload_gas: usize

Gas price for loading from storage

§sstore_set_gas: usize

Gas price for setting new value to storage (storage==0, new!=0)

§sstore_reset_gas: usize

Gas price for altering value in storage

§sstore_refund_gas: usize

Gas refund for SSTORE clearing (when storage!=0, new==0)

§tload_gas: usize

Gas price for TLOAD

§tstore_gas: usize

Gas price for TSTORE

§jumpdest_gas: usize

Gas price for JUMPDEST opcode

§log_gas: usize

Gas price for LOG*

§log_data_gas: usize

Additional gas for data in LOG*

§log_topic_gas: usize

Additional gas for each topic in LOG*

§create_gas: usize

Gas price for CREATE opcode

§call_gas: usize

Gas price for *CALL* opcodes

§call_stipend: usize

Stipend for transfer for CALL|CALLCODE opcode when value>0

§call_value_transfer_gas: usize

Additional gas required for value transfer (CALL|CALLCODE)

§call_new_account_gas: usize

Additional gas for creating new account (CALL|CALLCODE)

§suicide_refund_gas: usize

Refund for SUICIDE

§memory_gas: usize

Gas for used memory

§quad_coeff_div: usize

Coefficient used to convert memory size to gas price for memory

§create_data_gas: usize

Cost for contract length when executing CREATE

§create_data_limit: usize

Maximum code size when creating a contract.

§tx_gas: usize

Transaction cost

§tx_create_gas: usize

CREATE transaction cost

§tx_data_zero_gas: usize

Additional cost for empty data transaction

§tx_data_non_zero_gas: usize

Aditional cost for non-empty data transaction

§copy_gas: usize

Gas price for copying memory

§extcodesize_gas: usize

Price of EXTCODESIZE

§extcodecopy_base_gas: usize

Base price of EXTCODECOPY

§balance_gas: usize

Price of BALANCE

§extcodehash_gas: usize

Price of EXTCODEHASH

§suicide_gas: usize

Price of SUICIDE

§retire_gas: usize

Price for retiring PoS node.

§eip1820_gas: usize

Price for deploying Eip-1820 contract.

§access_list_storage_key_gas: usize§access_list_address_gas: usize§suicide_to_new_account_cost: usize

Amount of additional gas to pay when SUICIDE credits a non-existant account

§sub_gas_cap_divisor: Option<usize>

If Some(x): let limit = GAS * (x - 1) / x; let CALL’s gas = min(requested, limit); let CREATE’s gas = limit; If None: let CALL’s gas = (requested > GAS ? [OOG] : GAS); let CREATE’s gas = GAS;

§no_empty: bool

Don’t ever make empty accounts; contracts start with nonce=1. Also, don’t charge 25k when sending/suicide zero-value.

§kill_empty: bool

Kill empty accounts if touched.

§blockhash_gas: usize

Blockhash instruction gas cost.

§kill_dust: CleanDustMode

Kill basic accounts below this balance if touched.

§keep_unsigned_nonce: bool

VM execution does not increase null signed address nonce if this field is true.

§wasm: Option<WasmCosts>

Wasm extra specs, if wasm activated