Struct LimitedPriorityLevelConfiguration 

pub struct LimitedPriorityLevelConfiguration {
    pub nominal_concurrency_shares: Option<i32>,
    pub limit_response: Option<LimitResponse>,
    pub lendable_percent: Option<i32>,
    pub borrowing_limit_percent: Option<i32>,
}

LimitedPriorityLevelConfiguration specifies how to handle requests that are subject to limits. It addresses two issues:

• How are requests for this priority level limited?
• What should be done with requests that exceed the limit?

Fields

nominal_concurrency_shares: Option<i32>

nominalConcurrencyShares (NCS) contributes to the computation of the NominalConcurrencyLimit (NominalCL) of this level. This is the number of execution seats available at this priority level. This is used both for requests dispatched from this priority level as well as requests dispatched from other priority levels borrowing seats from this level. The server’s concurrency limit (ServerCL) is divided among the Limited priority levels in proportion to their NCS values:

NominalCL(i) = ceil( ServerCL * NCS(i) / sum_ncs ) sum_ncs = sum[priority level k] NCS(k)

Bigger numbers mean a larger nominal concurrency limit, at the expense of every other priority level. This field has a default value of 30. +optional

limit_response: Option<LimitResponse>

limitResponse indicates what to do with requests that can not be executed right now

lendable_percent: Option<i32>

lendablePercent prescribes the fraction of the level’s NominalCL that can be borrowed by other priority levels. The value of this field must be between 0 and 100, inclusive, and it defaults to 0. The number of seats that other levels can borrow from this level, known as this level’s LendableConcurrencyLimit (LendableCL), is defined as follows.

LendableCL(i) = round( NominalCL(i) * lendablePercent(i)/100.0 )

+optional

borrowing_limit_percent: Option<i32>

borrowingLimitPercent, if present, configures a limit on how many seats this priority level can borrow from other priority levels. The limit is known as this level’s BorrowingConcurrencyLimit (BorrowingCL) and is a limit on the total number of seats that this level may borrow at any one time. This field holds the ratio of that limit to the level’s nominal concurrency limit. When this field is non-nil, it must hold a non-negative integer and the limit is calculated as follows.

BorrowingCL(i) = round( NominalCL(i) * borrowingLimitPercent(i)/100.0 )

The value of this field can be more than 100, implying that this priority level can borrow a number of seats that is greater than its own nominal concurrency limit (NominalCL). When this field is left nil, the limit is effectively infinite. +optional

Implementations

impl LimitedPriorityLevelConfiguration

pub fn nominal_concurrency_shares(&self) -> i32

Returns the value of nominal_concurrency_shares, or the default value if nominal_concurrency_shares is unset.

pub fn lendable_percent(&self) -> i32

Returns the value of lendable_percent, or the default value if lendable_percent is unset.

pub fn borrowing_limit_percent(&self) -> i32

Returns the value of borrowing_limit_percent, or the default value if borrowing_limit_percent is unset.

Trait Implementations

impl Clone for LimitedPriorityLevelConfiguration

fn clone(&self) -> LimitedPriorityLevelConfiguration

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LimitedPriorityLevelConfiguration

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

Formats the value using the given formatter.

impl Default for LimitedPriorityLevelConfiguration

fn default() -> Self

Returns the “default value” for a type.

impl Hash for LimitedPriorityLevelConfiguration

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

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 Message for LimitedPriorityLevelConfiguration

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

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

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

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

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for LimitedPriorityLevelConfiguration

fn eq(&self, other: &LimitedPriorityLevelConfiguration) -> 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 Eq for LimitedPriorityLevelConfiguration

impl StructuralPartialEq for LimitedPriorityLevelConfiguration