Struct LimitConfig

pub struct LimitConfig {

    pub max_gas_burnt: u64,
    pub max_stack_height: u32,
    pub contract_prepare_version: ContractPrepareVersion,
    pub initial_memory_pages: u32,
    pub max_memory_pages: u32,
    pub registers_memory_limit: u64,
    pub max_register_size: u64,
    pub max_number_registers: u64,
    pub max_number_logs: u64,
    pub max_total_log_length: u64,
    pub max_total_prepaid_gas: u64,
    pub max_actions_per_receipt: u64,
    pub max_number_bytes_method_names: u64,
    pub max_length_method_name: u64,
    pub max_arguments_length: u64,
    pub max_length_returned_data: u64,
    pub max_contract_size: u64,
    pub max_transaction_size: u64,
    pub max_length_storage_key: u64,
    pub max_length_storage_value: u64,
    pub max_promises_per_function_call_action: u64,
    pub max_number_input_data_dependencies: u64,
    pub max_functions_number_per_contract: Option<u64>,
    pub wasmer2_stack_limit: i32,
    pub max_locals_per_contract: Option<u64>,
    pub account_id_validity_rules_version: AccountIdValidityRulesVersion,
}

Describes limits for VM and Runtime. TODO #4139: consider switching to strongly-typed wrappers instead of raw quantities

Fields

max_gas_burnt: u64

Max amount of gas that can be used, excluding gas attached to promises.

max_stack_height: u32

How tall the stack is allowed to grow?

See https://wiki.parity.io/WebAssembly-StackHeight to find out how the stack frame cost is calculated.

contract_prepare_version: ContractPrepareVersion

Whether a legacy version of stack limiting should be used, see ContractPrepareVersion.

initial_memory_pages: u32

The initial number of memory pages. NOTE: It’s not a limiter itself, but it’s a value we use for initial_memory_pages.

max_memory_pages: u32

What is the maximal memory pages amount is allowed to have for a contract.

registers_memory_limit: u64

Limit of memory used by registers.

max_register_size: u64

Maximum number of bytes that can be stored in a single register.

max_number_registers: u64

Maximum number of registers that can be used simultaneously.

Note that due to an implementation quirk [read: a bug] in VMLogic, if we have this number of registers, no subsequent writes to the registers will succeed even if they replace an existing register.

max_number_logs: u64

Maximum number of log entries.

max_total_log_length: u64

Maximum total length in bytes of all log messages.

max_total_prepaid_gas: u64

Max total prepaid gas for all function call actions per receipt.

max_actions_per_receipt: u64

Max number of actions per receipt.

max_number_bytes_method_names: u64

Max total length of all method names (including terminating character) for a function call permission access key.

max_length_method_name: u64

Max length of any method name (without terminating character).

max_arguments_length: u64

Max length of arguments in a function call action.

max_length_returned_data: u64

Max length of returned data

max_contract_size: u64

Max contract size

max_transaction_size: u64

Max transaction size

max_length_storage_key: u64

Max storage key size

max_length_storage_value: u64

Max storage value size

max_promises_per_function_call_action: u64

Max number of promises that a function call can create

max_number_input_data_dependencies: u64

Max number of input data dependencies

max_functions_number_per_contract: Option<u64>

If present, stores max number of functions in one contract

wasmer2_stack_limit: i32

If present, stores the secondary stack limit as implemented by wasmer2.

This limit should never be hit normally.

max_locals_per_contract: Option<u64>

If present, stores max number of locals declared globally in one contract

account_id_validity_rules_version: AccountIdValidityRulesVersion

Whether to enforce account_id well-formedness where it wasn’t enforced historically.

Trait Implementations

impl Clone for LimitConfig

fn clone(&self) -> LimitConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LimitConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for LimitConfig

fn deserialize<__D>( __deserializer: __D, ) -> Result<LimitConfig, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for LimitConfig

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for LimitConfig

fn eq(&self, other: &LimitConfig) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for LimitConfig

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for LimitConfig

impl StructuralPartialEq for LimitConfig