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MockSupervisor

Struct MockSupervisor 

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pub struct MockSupervisor {
    pub queued_exits: Vec<(Pid, i32)>,
    pub log: Vec<String>,
    /* private fields */
}
Expand description

In-memory supervisor for tests. Records spawns + signals; reap_one returns queued exits in FIFO order.

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§queued_exits: Vec<(Pid, i32)>

Pre-queued (pid, exit_status) pairs the test wants reap_one to return next.

§log: Vec<String>

Log of every action the scheduler took; lets tests assert on order.

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impl MockSupervisor

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pub fn new() -> Self

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pub fn queue_exit(&mut self, pid: Pid, status: i32)

Inject an exit — reap_one will surface this next.

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impl Default for MockSupervisor

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fn default() -> MockSupervisor

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

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fn spawn(&mut self, svc: &Service) -> Result<Pid>

Spawn a service; return its PID.
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fn terminate(&mut self, pid: Pid) -> Result<()>

Deliver SIGTERM to a PID. For graceful termination.
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fn kill(&mut self, pid: Pid) -> Result<()>

Deliver SIGKILL. For the last resort.
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fn reap_one(&mut self) -> Result<Option<(Pid, i32)>>

Block until any child exits, or return None immediately if no children have exited. Returns (pid, exit_status) when available.
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fn children(&self) -> Vec<(Pid, String)>

Live children tracked by this supervisor.

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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> 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, 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.