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Disposition

Enum Disposition 

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pub enum Disposition {
    Allow,
    Deny {
        stage: &'static str,
        reason: String,
    },
    Gate {
        wait: WaitReason,
        reason: String,
    },
    Defer {
        slot: u32,
    },
    RateLimited {
        retry_after_ms: u64,
    },
}
Expand description

The kernel’s adjudication of a Syscall. Generalizes GovernanceVerdict: AskUser becomes Disposition::Gate (suspend the calling task via the P2 TCB), which is where this primitive meets P2.

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Allow

Proceed as requested.

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Deny

Reject. stage names the gate stage that vetoed.

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§stage: &'static str
§reason: String
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Gate

Suspend the calling task until an external party resolves it (e.g. human approval). reason carries the human-readable justification (e.g. the governance AskUser reason).

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§reason: String
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Defer

Accept but queue for later scheduling (backpressure).

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§slot: u32
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RateLimited

Rejected by a rate limiter; retry permitted after the delay.

Fields

§retry_after_ms: u64

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impl Disposition

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pub fn label(&self) -> &'static str

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pub fn is_allowed(&self) -> bool

Whether the syscall may proceed to execution now.

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impl Clone for Disposition

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fn clone(&self) -> Disposition

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for Disposition

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

Formats the value using the given formatter. Read more
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impl From<GovernanceVerdict> for Disposition

Bridge from the existing tool-decision vocabulary. AskUserGate(Approval): a tool awaiting human approval suspends the task, which M2+M1 realize via the TCB.

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fn from(verdict: GovernanceVerdict) -> Self

Converts to this type from the input type.

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.