pub enum Node2Request {
    Close {
        responder: Node2CloseResponder,
    },
    Query {
        responder: Node2QueryResponder,
    },
    Reopen {
        rights_request: Option<Box<RightsRequest>>,
        object_request: ServerEnd<NodeMarker>,
        control_handle: Node2ControlHandle,
    },
    GetConnectionInfo {
        responder: Node2GetConnectionInfoResponder,
    },
    GetAttributes {
        query: NodeAttributesQuery,
        responder: Node2GetAttributesResponder,
    },
    UpdateAttributes {
        payload: MutableNodeAttributes,
        responder: Node2UpdateAttributesResponder,
    },
    Sync {
        responder: Node2SyncResponder,
    },
}
Expand description

Node defines the minimal protocol for entities which can be accessed in a filesystem.

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Close

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Terminates the connection.

After calling Close, the client must not send any other requests.

Servers, after sending the status response, should close the connection regardless of status and without sending an epitaph.

Closing the client end of the channel should be semantically equivalent to calling Close without knowing when the close has completed or its status.

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Query

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Reopen

Fields

§rights_request: Option<Box<RightsRequest>>
§object_request: ServerEnd<NodeMarker>
§control_handle: Node2ControlHandle

Creates another connection to the same node.

  • object_request is the server end of a channel created for the new connection. The caller may proceed to send messages on the corresponding client end right away.
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GetConnectionInfo

Acquires information about the connection.

This method does not require any rights.

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GetAttributes

Acquires information about the node.

The attributes of a node should be stable, independent of the specific protocol used to access it.

If a particular attribute is not applicable or not supported, filesystems should leave the corresponding field absent.

  • query a bit-mask specifying which attributes to fetch. The server should not return more than necessary.
  • attributes the returned attributes.

This method requires the [Rights.GET_ATTRIBUTES] right.

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UpdateAttributes

Updates information about the node.

  • attributes the presence of a table field in attributes indicates the intent to update the corresponding attribute.

This method requires the [Rights.UPDATE_ATTRIBUTES] right.

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Sync

Fields

Synchronizes updates to the node to the underlying media, if it exists.

This method will return when the filesystem server has flushed the relevant updates to the underlying media, but does not guarantee the underlying media has persisted the information, nor that any information is committed to hardware. Clients may use Sync to ensure ordering between operations.

This method does not require any rights.

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Trait Implementations§

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impl Debug for Node2Request

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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<T> Encode<Ambiguous1> for T

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unsafe fn encode( self, _encoder: &mut Encoder<'_>, _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> Encode<Ambiguous2> for T

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unsafe fn encode( self, _encoder: &mut Encoder<'_>, _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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fn instrument(self, span: Span) -> Instrumented<Self>

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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> Pointable for T

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const ALIGN: usize = mem::align_of::<T>()

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

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unsafe fn deref<'a>(ptr: usize) -> &'a T

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unsafe fn drop(ptr: usize)

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type Error = Infallible

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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 Twhere U: TryFrom<T>,

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

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