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IpcFileHandle

zng_task::channel

Struct IpcFileHandle 

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

File handle that can be transferred to another process.

§File

This type can be converted from and to std::fs::File. This type does not implement IO traits, it must be converted to read/write. The file handle is only closed on drop if it was not converted back.

§Serialization

This type implements serialization only for compatibility with IPC channel, attempting to serialize it outside of with_ipc_serialization context will return an error. On IPC serialization the handle is duplicated for the target process.

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impl IpcFileHandle

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pub fn duplicate(&self) -> Result<Self>

Duplicate file handle for the same process.

Note that the read/write offset is associated with the system handle, if you convert multiple duplicates to File any read in one instance advances the position in all instances.

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impl Debug for IpcFileHandle

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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<'de> Deserialize<'de> for IpcFileHandle

Available on ipc only.
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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Drop for IpcFileHandle

Available on ipc only.
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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl From<File> for IpcFileHandle

Available on ipc only.
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fn from(file: File) -> Self

Converts to this type from the input type.
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impl From<IpcFileHandle> for File

Available on ipc only.
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fn from(f: IpcFileHandle) -> Self

Converts to this type from the input type.
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impl From<IpcFileHandle> for File

Available on ipc only.
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fn from(f: IpcFileHandle) -> Self

Converts to this type from the input type.
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impl From<IpcFileHandle> for IpcReadHandle

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fn from(f: IpcFileHandle) -> Self

Converts to this type from the input type.
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impl Serialize for IpcFileHandle

Available on ipc only.
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fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: Serializer,

Serialize this value into the given Serde serializer. Read more

Auto Trait 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> 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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fn in_current_span(self) -> Instrumented<Self>

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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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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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.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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impl<T> IpcValue for T
where T: Serialize + for<'d> Deserialize<'d> + Send + 'static,

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impl<T> StateValue for T
where T: Any + Send + Sync,