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SpawnPolicy

Struct SpawnPolicy 

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pub struct SpawnPolicy {
    pub timeout: Option<Duration>,
    pub max_output_bytes: usize,
    pub env: EnvPolicy,
    pub stderr: StderrMode,
    pub current_dir: Option<PathBuf>,
}
Expand description

The policy a spawn runs under.

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§timeout: Option<Duration>

Wall-clock ceiling. None waits forever — the pre-1.3 behaviour, kept expressible so a caller has to opt into it rather than get it by forgetting.

§max_output_bytes: usize

Maximum bytes retained per captured stream. Output past the cap is drained and discarded — never left unread, which would block the child on a full pipe — and the corresponding *_truncated flag is set.

§env: EnvPolicy§stderr: StderrMode§current_dir: Option<PathBuf>

Working directory for the child. None inherits ours.

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impl SpawnPolicy

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pub fn deny_vars<I: IntoIterator<Item = String>>(self, vars: I) -> Self

Deny the named variables, ignoring any that are None. The shape the hosts use: they hold Option<String> for --passphrase-env and --token-env and want both scrubbed when set.

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pub fn timeout(self, timeout: Option<Duration>) -> Self

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pub fn stderr(self, mode: StderrMode) -> Self

Trait Implementations§

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impl Clone for SpawnPolicy

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fn clone(&self) -> SpawnPolicy

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 SpawnPolicy

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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 SpawnPolicy

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fn default() -> Self

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

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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Calls U::from(self).

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type Output = T

Should always be Self
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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

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fn clone_into(&self, target: &mut T)

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impl<T, U> TryFrom<U> for T
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type Error = !

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

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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
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Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more