Struct InstanceConfig 

pub struct InstanceConfig {
    pub default_caps: CapabilityMask,
    pub max_entities: u32,
    pub max_scheduled: u32,
    pub max_inbox_per_route: u32,
    pub memory_budget_bytes: u64,
    pub parent: Option<InstanceId>,
    pub quota_reduction: QuotaReductionPolicy,
}

Per-instance configuration supplied at Kernel::create_instance. All fields are pub — InstanceConfig { field: ..., ..Default::default() } is the idiomatic construction pattern.

Fields

default_caps: CapabilityMask

The instance’s capability grant — the upper bound on the authority any action running against this instance can hold. effective_caps resolves a System action to exactly this, and an External action to this intersected with the submission/scheduling ceiling, so no action can exceed what the instance config permits (there is no Principal::System blanket bypass).

max_entities: u32

Hard upper bound on entities (0 = unlimited).

max_scheduled: u32

Hard upper bound on scheduled actions (0 = unlimited).

max_inbox_per_route: u32

Per-route inbound-signal queue depth (0 = unlimited). A SendSignal whose target route inbox is at this depth is dropped with KernelEvent::SignalDropped { reason: QueueFull } and credits no in-flight refcount.

memory_budget_bytes: u64

Component byte ceiling enforced per-Op in step(). 0 = unlimited (default). When > 0, an Op whose projected post-commit total exceeds this is denied per-Op (EffectFailed) without rolling back sibling Ops.

parent: Option<InstanceId>

Parent InstanceId for hierarchical quota enforcement (apply_quota_reduction); None for root instances.

quota_reduction: QuotaReductionPolicy

Policy applied when a parent’s quota would drop below current child aggregate usage. See QuotaReductionPolicy.

Trait Implementations

impl Clone for InstanceConfig

fn clone(&self) -> InstanceConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InstanceConfig

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

Formats the value using the given formatter.

impl Default for InstanceConfig

fn default() -> InstanceConfig

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for InstanceConfig

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for InstanceConfig

impl PartialEq for InstanceConfig

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

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for InstanceConfig