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Files

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pub struct Files<S: ?Sized, D: DeliveryHandler> { /* private fields */ }
Expand description

A thread-safe registry of active File instances indexed by their Zircon pager port key.

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impl<S: BlockService + ?Sized, D: DeliveryHandler> Files<S, D>

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pub fn new(service: Arc<S>, delivery_handler: D, port: Port) -> Self

Creates a new file registry with the provided block service, delivery handler, and port.

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pub fn spawn_pager_thread(self: &Arc<Self>) -> PagerThread<S, D>
where S: 'static,

Spawns a background thread to service pager requests for self.

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pub fn service(&self) -> &Arc<S> ⓘ

Returns a reference to the block service.

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pub fn register_blob( &self, key: u64, merkle_leaves: &[[u8; 32]], ) -> Result<(), Error>

Registers a blob’s Merkle tree leaf hashes with the downstream delivery handler.

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pub fn begin_loading(&self, key: u64)

Marks key as currently loading metadata, preserving any page requests that arrived prior to the mapping command.

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pub fn get_file(&self, key: u64) -> Option<Arc<File>>

Returns the loaded File registered under key, if present.

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pub async fn wait_for_file(&self, key: u64) -> Result<Arc<File>, Error>

Returns a future that completes with the loaded File registered under key, waiting asynchronously if the file is currently loading or hasn’t arrived yet.

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pub fn remove(&self, key: u64)

Removes the file registered under key.

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impl<S: BlockService + ?Sized> Files<S, NoopDeliveryHandler>

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pub fn new_without_pager(service: Arc<S>) -> Self

Creates a file registry without a pager for intermediate (e.g. partition) sessions.

Auto Trait Implementations§

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impl<S, D> !Freeze for Files<S, D>

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impl<S, D> !RefUnwindSafe for Files<S, D>

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impl<S, D> !UnwindSafe for Files<S, D>

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impl<S, D> Send for Files<S, D>
where S: Sync + Send + ?Sized,

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impl<S, D> Sync for Files<S, D>
where S: Sync + Send + ?Sized,

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impl<S, D> Unpin for Files<S, D>
where <D as DeliveryHandler>::Request: Unpin, S: ?Sized,

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impl<S, D> UnsafeUnpin for Files<S, D>
where S: ?Sized,

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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, D> Encode<Ambiguous1, D> for T
where D: ResourceDialect,

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unsafe fn encode( self, _encoder: &mut Encoder<'_, D>, _offset: usize, _depth: Depth, ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID. Read more
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impl<T, D> Encode<Ambiguous2, D> for T
where D: ResourceDialect,

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unsafe fn encode( self, _encoder: &mut Encoder<'_, D>, _offset: usize, _depth: Depth, ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID. 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> 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 = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

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<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V