Struct HostFunctionCosts

pub struct HostFunctionCosts {

    pub cost_increase_per_message: u32,
    pub read_value: HostFunction<[Cost; 3]>,
    pub dictionary_get: HostFunction<[Cost; 3]>,
    pub write: HostFunction<[Cost; 4]>,
    pub dictionary_put: HostFunction<[Cost; 4]>,
    pub add: HostFunction<[Cost; 4]>,
    pub new_uref: HostFunction<[Cost; 3]>,
    pub load_named_keys: HostFunction<[Cost; 2]>,
    pub ret: HostFunction<[Cost; 2]>,
    pub get_key: HostFunction<[Cost; 5]>,
    pub has_key: HostFunction<[Cost; 2]>,
    pub put_key: HostFunction<[Cost; 4]>,
    pub remove_key: HostFunction<[Cost; 2]>,
    pub revert: HostFunction<[Cost; 1]>,
    pub is_valid_uref: HostFunction<[Cost; 2]>,
    pub add_associated_key: HostFunction<[Cost; 3]>,
    pub remove_associated_key: HostFunction<[Cost; 2]>,
    pub update_associated_key: HostFunction<[Cost; 3]>,
    pub set_action_threshold: HostFunction<[Cost; 2]>,
    pub get_caller: HostFunction<[Cost; 1]>,
    pub get_blocktime: HostFunction<[Cost; 1]>,
    pub create_purse: HostFunction<[Cost; 2]>,
    pub transfer_to_account: HostFunction<[Cost; 7]>,
    pub transfer_from_purse_to_account: HostFunction<[Cost; 9]>,
    pub transfer_from_purse_to_purse: HostFunction<[Cost; 8]>,
    pub get_balance: HostFunction<[Cost; 3]>,
    pub get_phase: HostFunction<[Cost; 1]>,
    pub get_system_contract: HostFunction<[Cost; 3]>,
    pub get_main_purse: HostFunction<[Cost; 1]>,
    pub read_host_buffer: HostFunction<[Cost; 3]>,
    pub create_contract_package_at_hash: HostFunction<[Cost; 2]>,
    pub create_contract_user_group: HostFunction<[Cost; 8]>,
    pub add_contract_version: HostFunction<[Cost; 10]>,
    pub add_contract_version_with_message_topics: HostFunction<[Cost; 11]>,
    pub add_package_version: HostFunction<[Cost; 11]>,
    pub disable_contract_version: HostFunction<[Cost; 4]>,
    pub call_contract: HostFunction<[Cost; 7]>,
    pub call_versioned_contract: HostFunction<[Cost; 9]>,
    pub get_named_arg_size: HostFunction<[Cost; 3]>,
    pub get_named_arg: HostFunction<[Cost; 4]>,
    pub remove_contract_user_group: HostFunction<[Cost; 4]>,
    pub provision_contract_user_group_uref: HostFunction<[Cost; 5]>,
    pub remove_contract_user_group_urefs: HostFunction<[Cost; 6]>,
    pub print: HostFunction<[Cost; 2]>,
    pub blake2b: HostFunction<[Cost; 4]>,
    pub random_bytes: HostFunction<[Cost; 2]>,
    pub enable_contract_version: HostFunction<[Cost; 4]>,
    pub manage_message_topic: HostFunction<[Cost; 4]>,
    pub emit_message: HostFunction<[Cost; 4]>,
    pub get_block_info: HostFunction<[Cost; 2]>,
    pub generic_hash: HostFunction<[Cost; 5]>,
    pub recover_secp256k1: HostFunction<[Cost; 6]>,
    pub verify_signature: HostFunction<[Cost; 6]>,
}

Available on crate feature std only.

Definition of a host function cost table.

Fields

cost_increase_per_message: u32

Cost increase for successive calls to casper_emit_message within an execution.

read_value: HostFunction<[Cost; 3]>

Cost of calling the read_value host function.

dictionary_get: HostFunction<[Cost; 3]>

Cost of calling the dictionary_get host function.

write: HostFunction<[Cost; 4]>

Cost of calling the write host function.

dictionary_put: HostFunction<[Cost; 4]>

Cost of calling the dictionary_put host function.

add: HostFunction<[Cost; 4]>

Cost of calling the add host function.

new_uref: HostFunction<[Cost; 3]>

Cost of calling the new_uref host function.

load_named_keys: HostFunction<[Cost; 2]>

Cost of calling the load_named_keys host function.

ret: HostFunction<[Cost; 2]>

Cost of calling the ret host function.

get_key: HostFunction<[Cost; 5]>

Cost of calling the get_key host function.

has_key: HostFunction<[Cost; 2]>

Cost of calling the has_key host function.

put_key: HostFunction<[Cost; 4]>

Cost of calling the put_key host function.

remove_key: HostFunction<[Cost; 2]>

Cost of calling the remove_key host function.

revert: HostFunction<[Cost; 1]>

Cost of calling the revert host function.

is_valid_uref: HostFunction<[Cost; 2]>

Cost of calling the is_valid_uref host function.

add_associated_key: HostFunction<[Cost; 3]>

Cost of calling the add_associated_key host function.

remove_associated_key: HostFunction<[Cost; 2]>

Cost of calling the remove_associated_key host function.

update_associated_key: HostFunction<[Cost; 3]>

Cost of calling the update_associated_key host function.

set_action_threshold: HostFunction<[Cost; 2]>

Cost of calling the set_action_threshold host function.

get_caller: HostFunction<[Cost; 1]>

Cost of calling the get_caller host function.

get_blocktime: HostFunction<[Cost; 1]>

Cost of calling the get_blocktime host function.

create_purse: HostFunction<[Cost; 2]>

Cost of calling the create_purse host function.

transfer_to_account: HostFunction<[Cost; 7]>

Cost of calling the transfer_to_account host function.

transfer_from_purse_to_account: HostFunction<[Cost; 9]>

Cost of calling the transfer_from_purse_to_account host function.

transfer_from_purse_to_purse: HostFunction<[Cost; 8]>

Cost of calling the transfer_from_purse_to_purse host function.

get_balance: HostFunction<[Cost; 3]>

Cost of calling the get_balance host function.

get_phase: HostFunction<[Cost; 1]>

Cost of calling the get_phase host function.

get_system_contract: HostFunction<[Cost; 3]>

Cost of calling the get_system_contract host function.

get_main_purse: HostFunction<[Cost; 1]>

Cost of calling the get_main_purse host function.

read_host_buffer: HostFunction<[Cost; 3]>

Cost of calling the read_host_buffer host function.

create_contract_package_at_hash: HostFunction<[Cost; 2]>

Cost of calling the create_contract_package_at_hash host function.

create_contract_user_group: HostFunction<[Cost; 8]>

Cost of calling the create_contract_user_group host function.

add_contract_version: HostFunction<[Cost; 10]>

Cost of calling the add_contract_version host function.

add_contract_version_with_message_topics: HostFunction<[Cost; 11]>

Cost of calling the add_contract_version_with_message_topics host function.

add_package_version: HostFunction<[Cost; 11]>

Cost of calling the add_package_version host function.

disable_contract_version: HostFunction<[Cost; 4]>

Cost of calling the disable_contract_version host function.

call_contract: HostFunction<[Cost; 7]>

Cost of calling the call_contract host function.

call_versioned_contract: HostFunction<[Cost; 9]>

Cost of calling the call_versioned_contract host function.

get_named_arg_size: HostFunction<[Cost; 3]>

Cost of calling the get_named_arg_size host function.

get_named_arg: HostFunction<[Cost; 4]>

Cost of calling the get_named_arg host function.

remove_contract_user_group: HostFunction<[Cost; 4]>

Cost of calling the remove_contract_user_group host function.

provision_contract_user_group_uref: HostFunction<[Cost; 5]>

Cost of calling the provision_contract_user_group_uref host function.

remove_contract_user_group_urefs: HostFunction<[Cost; 6]>

Cost of calling the remove_contract_user_group_urefs host function.

print: HostFunction<[Cost; 2]>

Cost of calling the print host function.

blake2b: HostFunction<[Cost; 4]>

Cost of calling the blake2b host function.

random_bytes: HostFunction<[Cost; 2]>

Cost of calling the next address host function.

enable_contract_version: HostFunction<[Cost; 4]>

Cost of calling the enable_contract_version host function.

manage_message_topic: HostFunction<[Cost; 4]>

Cost of calling the casper_manage_message_topic host function.

emit_message: HostFunction<[Cost; 4]>

Cost of calling the casper_emit_message host function.

get_block_info: HostFunction<[Cost; 2]>

Cost of calling the get_block_info host function.

generic_hash: HostFunction<[Cost; 5]>

Cost of calling the generic_hash host function.

recover_secp256k1: HostFunction<[Cost; 6]>

Cost of calling the ‘recover_secp256k1’ host function.

verify_signature: HostFunction<[Cost; 6]>

Cost of calling the ‘recover_secp256k1’ host function.

Trait Implementations

impl Add for HostFunctionCosts

type Output = HostFunctionCosts

The resulting type after applying the + operator.

fn add(self, rhs: HostFunctionCosts) -> HostFunctionCosts

Performs the + operation.

impl Clone for HostFunctionCosts

fn clone(&self) -> HostFunctionCosts

Returns a copy of the value.

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

Performs copy-assignment from source.

impl DataSize for HostFunctionCosts

const IS_DYNAMIC: bool = false

If true, the type has a heap size that can vary at runtime, depending on the actual value.

const STATIC_HEAP_SIZE: usize = 0usize

The amount of space a value of the type always occupies. If IS_DYNAMIC is false, this is the total amount of heap memory occupied by the value. Otherwise this is a lower bound.

fn estimate_heap_size(&self) -> usize

Estimates the size of heap memory taken up by this value.

impl Debug for HostFunctionCosts

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

Formats the value using the given formatter.

impl Default for HostFunctionCosts

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for HostFunctionCosts

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Distribution<HostFunctionCosts> for Standard

Available on crate feature testing only.

fn sample<R: Rng + ?Sized>(&self, rng: &mut R) -> HostFunctionCosts

Generate a random value of T, using rng as the source of randomness.

fn sample_iter<R>(self, rng: R) -> DistIter<Self, R, T>

where R: Rng, Self: Sized,

Create an iterator that generates random values of T, using rng as the source of randomness.

fn map<F, S>(self, func: F) -> DistMap<Self, F, T, S>

where F: Fn(T) -> S, Self: Sized,

Create a distribution of values of ‘S’ by mapping the output of Self through the closure F

impl FromBytes for HostFunctionCosts

fn from_bytes(bytes: &[u8]) -> Result<(Self, &[u8]), Error>

Deserializes the slice into Self.

fn from_vec(bytes: Vec<u8>) -> Result<(Self, Vec<u8>), Error>

Deserializes the Vec<u8> into Self.

impl PartialEq for HostFunctionCosts

fn eq(&self, other: &HostFunctionCosts) -> 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 HostFunctionCosts

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl ToBytes for HostFunctionCosts

fn to_bytes(&self) -> Result<Vec<u8>, Error>

Serializes &self to a Vec<u8>.

fn serialized_length(&self) -> usize

Returns the length of the Vec<u8> which would be returned from a successful call to to_bytes() or into_bytes(). The data is not actually serialized, so this call is relatively cheap.

fn into_bytes(self) -> Result<Vec<u8>, Error>

where Self: Sized,

Consumes self and serializes to a Vec<u8>.

fn write_bytes(&self, writer: &mut Vec<u8>) -> Result<(), Error>

Writes &self into a mutable writer.

impl Zero for HostFunctionCosts

fn zero() -> Self

Returns the additive identity element of Self, 0.

fn is_zero(&self) -> bool

Returns true if self is equal to the additive identity.

fn set_zero(&mut self)

Sets self to the additive identity element of Self, 0.

impl Copy for HostFunctionCosts

impl Eq for HostFunctionCosts

impl StructuralPartialEq for HostFunctionCosts