Struct ProtocolParameters 

pub struct ProtocolParameters {

    pub deposit_per_item: Balance,
    pub deposit_per_byte: Balance,
    pub deposit_per_account: Balance,
    pub core_count: CoreIndex,
    pub min_turnaround_period: Slot,
    pub epoch_period: Slot,
    pub max_accumulate_gas: UnsignedGas,
    pub max_is_authorized_gas: UnsignedGas,
    pub max_refine_gas: UnsignedGas,
    pub block_gas_limit: UnsignedGas,
    pub recent_block_count: u16,
    pub max_work_items: u16,
    pub max_dependencies: u16,
    pub max_tickets_per_block: u16,
    pub max_lookup_anchor_age: Slot,
    pub tickets_attempts_number: u16,
    pub auth_window: u16,
    pub slot_period_sec: u16,
    pub auth_queue_len: u16,
    pub rotation_period: u16,
    pub max_extrinsics: u16,
    pub availability_timeout: u16,
    pub val_count: ValIndex,
    pub max_authorizer_code_size: u32,
    pub max_input: u32,
    pub max_service_code_size: u32,
    pub basic_piece_len: u32,
    pub max_imports: u32,
    pub segment_piece_count: u32,
    pub max_report_elective_data: u32,
    pub transfer_memo_size: u32,
    pub max_exports: u32,
    pub epoch_tail_start: Slot,
}

Baseline parameters for the JAM protocol.

Fields

deposit_per_item: Balance

(Bi) The additional deposit required for each preimage or storage item in an account.

deposit_per_byte: Balance

(Bl) The additional deposit required for each byte of each storage item in an account and preimage of an account.

deposit_per_account: Balance

(Bs) The base deposit required to retain an account.

core_count: CoreIndex

(C) Number of JAM cores.

min_turnaround_period: Slot

(D) The period in timeslots after which an unreferenced preimage may be expunged.

epoch_period: Slot

(E) The epoch period, defined in number of slots.

max_accumulate_gas: UnsignedGas

(Ga) Maximum gas which may be used to Accumulate a single work-report.

max_is_authorized_gas: UnsignedGas

(Gi) Maximum gas which may be used to Authorize a single work-package.

max_refine_gas: UnsignedGas

(Gr) Maximum gas which may be used to Refine a single work-report.

block_gas_limit: UnsignedGas

(Gt) Maximum gas which can be processed in a single block.

recent_block_count: u16

(H) The number of blocks which are kept in the recent block cache.

max_work_items: u16

(I) Maximum number of Work Items in a Work Package.

max_dependencies: u16

(J) Maximum number of dependencies (total of prerequisites and SR lookup entries).

max_tickets_per_block: u16

(K) Max tickets allowed to be embedded in each block extrinsic.

max_lookup_anchor_age: Slot

(L) Maximum age, in blocks, that the lookup anchor may be, taken from the regular anchor.

tickets_attempts_number: u16

(N) The number of distinct tickets which may be created and submitted by each validator on each epoch.

auth_window: u16

(O) Number of items in the authorization window.

slot_period_sec: u16

(P) The period for each JAM time slot, defined in seconds.

auth_queue_len: u16

(Q) Number of authorizations in a queue allocated to a core.

rotation_period: u16

(R) The rotation period, defined in number of slots.

max_extrinsics: u16

(T) Maximum number of extrinsics in a Work Package.

availability_timeout: u16

(U) The period in timeslots after which reported but unavailable work may be replaced.

val_count: ValIndex

(V) Total number of validators. Must by divisible by guarantor group size (3).

max_authorizer_code_size: u32

(Wa) The maximum size of authorizer code (used by Is-Authorized procedure).

max_input: u32

(Wb) Maximum size of a Work Package together with all extrinsic data and imported segments.

max_service_code_size: u32

(Wc) The maximum size of service code (used by Refine/Accumulate/OnTransfer procedures).

basic_piece_len: u32

(We) Number of octets in a basic piece. Must be even and divide into segment length (4,104).

max_imports: u32

(Wm) Maximum number of imports in a Work Package.

segment_piece_count: u32

(Wp) The number of erasure-coded pieces in a segment.

max_report_elective_data: u32

(Wr) The maximum total size of all unbounded blobs in a work-report, in octets.

transfer_memo_size: u32

(Wt) The size of a transfer memo in octets. The size of a transfer memo in octets.

max_exports: u32

(Wx) Maximum number of exports in a Work Package.

epoch_tail_start: Slot

(Y) The length of the contest, defined in number of slots.

Implementations

impl ProtocolParameters

pub const fn full() -> Self

pub const fn tiny() -> Self

pub fn get() -> Self

pub fn validate(&self) -> Result<(), &'static str>

pub fn apply(self) -> Result<(), &'static str>

Trait Implementations

impl Clone for ProtocolParameters

fn clone(&self) -> ProtocolParameters

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ProtocolParameters

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

Formats the value using the given formatter.

impl Decode for ProtocolParameters

fn decode<__CodecInputEdqy: Input>( __codec_input_edqy: &mut __CodecInputEdqy, ) -> Result<Self, Error>

Attempt to deserialise the value from input.

fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self>, ) -> Result<DecodeFinished, Error>

where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

fn skip<I>(input: &mut I) -> Result<(), Error>

where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl Encode for ProtocolParameters

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<__CodecOutputEdqy: Output + ?Sized>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> R

where F: FnOnce(&[u8]) -> R,

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl MaxEncodedLen for ProtocolParameters

fn max_encoded_len() -> usize

Upper bound, in bytes, of the maximum encoded size of this item.

impl PartialEq for ProtocolParameters

fn eq(&self, other: &ProtocolParameters) -> 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 Copy for ProtocolParameters

impl EncodeLike for ProtocolParameters

impl Eq for ProtocolParameters

impl StructuralPartialEq for ProtocolParameters