Struct FilterCursor

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pub struct FilterCursor { /* private fields */ }

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FilterCursor is a cursor that returns all logs optionally filtered by component selectors.

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impl FilterCursor

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pub fn new( buffer: Arc<SharedBuffer>, index: u64, message_id: u64, snapshot: bool, selectors: Vec<ComponentSelector>, ) -> Self

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pub fn poll_next( self: Pin<&mut Self>, cx: &mut Context<'_>, ) -> Poll<Option<Message<'_>>>

Polls for the next message. We can’t use the Stream trait because this is a lending iterator; it returns a reference to a message (and will hold a lock). Depending on the use, this can be more efficient than using a Stream which will involve copying the message.

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impl<T> From<FilterCursor> for FilterCursorStream<T>

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fn from(cursor: FilterCursor) -> Self

Converts to this type from the input type.

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impl<'pin> Unpin for FilterCursor
where PinnedFieldsOf<__FilterCursor<'pin>>: Unpin,

Auto Trait Implementations§

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impl !UnwindSafe for FilterCursor

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, 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> InstanceFromServiceTransport<T> for T

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fn from_service_transport(handle: T) -> T

Converts the given service transport handle of type T to [Self]

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impl<T, U> Into 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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