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SimulationCancellationToken

evm_fork_cache::cancellation

Struct SimulationCancellationToken 

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pub struct SimulationCancellationToken { /* private fields */ }
Expand description

A cloneable cancellation signal for one logical simulation scope.

Clones share one atomic state. The executing inspector marks the token as started at its first instruction boundary, while an ingress owner may call cancel from another thread. One scope may contain several related overlay calls, including multi-chain or access-list replay calls; every clone and call observes the same cancellation decision. Cancellation is monotonic: a token cannot be reset and must not be carried into a later, independent simulation scope.

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impl SimulationCancellationToken

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pub fn new() -> Self

Create a fresh, unstarted and uncancelled simulation scope.

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pub fn cancel(&self)

Request cancellation.

This operation is idempotent and safe before, during, or after EVM execution. A running cancellable overlay observes it at an instruction boundary.

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pub fn is_cancelled(&self) -> bool

Whether cancellation has been requested.

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pub fn has_started(&self) -> bool

Whether any cancellable EVM in this scope reached its first instruction boundary.

Trait Implementations§

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impl Clone for SimulationCancellationToken

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fn clone(&self) -> SimulationCancellationToken

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 SimulationCancellationToken

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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 Default for SimulationCancellationToken

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fn default() -> SimulationCancellationToken

Returns the “default value” for a type. Read more

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🔬This is a nightly-only experimental API. (clone_to_uninit)
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