Struct bones_framework::prelude::piccolo::thread::Executor

pub struct Executor<'gc>(/* private fields */);
Expand description

The entry-point for the Lua VM.

Executor runs networks of Threads that may depend on each other and may pass control back and forth. All Lua code that is run is done so directly or indirectly by calling Executor::step.

§Panics

Executor is dangerous to use from within any kind of Lua callback. It has no protection against re-entrency, and calling Executor methods from within a callback that it is running (other than Executor::mode) will panic. Additionally, even if an independent Executor is used, cross-thread upvalues may cause a panic if one Executor is used within the other.

Executors are not meant to be used from callbacks at all, and Executors should not be nested. Instead, use the normal mechanisms for callbacks to call Lua code so that it is run on the same executor calling the callback.

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impl<'gc> Executor<'gc>

pub fn new(ctx: Context<'gc>) -> Executor<'gc>

Creates a new Executor with a stopped main thread.

pub fn run(mc: &Mutation<'gc>, thread: Thread<'gc>) -> Executor<'gc>

Creates a new Executor that begins running the given thread.

pub fn from_inner(inner: Gc<'gc, RefLock<ExecutorState<'gc>>>) -> Executor<'gc>

pub fn into_inner(self) -> Gc<'gc, RefLock<ExecutorState<'gc>>>

pub fn start( ctx: Context<'gc>, function: Function<'gc>, args: impl IntoMultiValue<'gc>, ) -> Executor<'gc>

Creates a new Executor with a new Thread running the given function.

pub fn mode(self) -> ExecutorMode

pub fn step(self, ctx: Context<'gc>, fuel: &mut Fuel) -> bool

Runs the VM for a period of time controlled by the fuel parameter.

The VM and callbacks will consume fuel as they run, and Executor::step will return as soon as Fuel::can_continue() returns false and some minimal positive progress has been made.

Returns false if the method has exhausted its fuel, but there is more work to do, and returns true if no more progress can be made. If true is returned, then Executor::mode() will no longer be ExecutorMode::Normal.

pub fn take_result<T>( self, ctx: Context<'gc>, ) -> Result<Result<T, Error<'gc>>, BadExecutorMode>
where T: FromMultiValue<'gc>,

pub fn resume( self, ctx: Context<'gc>, args: impl IntoMultiValue<'gc>, ) -> Result<(), BadExecutorMode>

pub fn resume_err( self, mc: &Mutation<'gc>, error: Error<'gc>, ) -> Result<(), BadExecutorMode>

pub fn stop(self, mc: &Mutation<'gc>)

Reset this Executor entirely, leaving it with a stopped main thread. Equivalent to creating a new executor with Executor::new.

pub fn reset(self, mc: &Mutation<'gc>, thread: Thread<'gc>)

Reset this Executor entirely and begins running the given thread. Equivalent to creating a new executor with Executor::run.

pub fn restart( self, ctx: Context<'gc>, function: Function<'gc>, args: impl IntoMultiValue<'gc>, )

Reset this Executor entirely and begins running the given function, equivalent to creating a new executor with Executor::start.

Trait Implementations§

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impl<'gc> Clone for Executor<'gc>

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fn clone(&self) -> Executor<'gc>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'gc> Collect for Executor<'gc>

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fn needs_trace() -> bool

As an optimization, if this type can never hold a Gc pointer and trace is unnecessary to call, you may implement this method and return false. The default implementation returns true, signaling that Collect::trace must be called.
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fn trace(&self, cc: &Collection)

Must call Collect::trace on all held Gc pointers. If this type holds inner types that implement Collect, a valid implementation would simply call Collect::trace on all the held values to ensure this.
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impl<'gc> Debug for Executor<'gc>

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

Formats the value using the given formatter. Read more
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impl<'gc> Hash for Executor<'gc>

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<'gc> PartialEq for Executor<'gc>

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fn eq(&self, other: &Executor<'gc>) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'gc> Stashable<'gc> for Executor<'gc>

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type Stashed = StashedExecutor

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fn stash( self, roots: &DynamicRootSet<'gc>, mc: &Mutation<'gc>, ) -> <Executor<'gc> as Stashable<'gc>>::Stashed

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impl<'gc> Copy for Executor<'gc>

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impl<'gc> Eq for Executor<'gc>

Auto Trait Implementations§

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impl<'gc> Freeze for Executor<'gc>

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impl<'gc> !RefUnwindSafe for Executor<'gc>

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impl<'gc> !Send for Executor<'gc>

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impl<'gc> !Sync for Executor<'gc>

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impl<'gc> Unpin for Executor<'gc>

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impl<'gc> !UnwindSafe for Executor<'gc>

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Immutably borrows from an owned value. Read more
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🔬This is a nightly-only experimental API. (clone_to_uninit)
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