Enum PartitionRequest

Source
pub enum PartitionRequest {
    GetInfo {
        responder: PartitionGetInfoResponder,
    },
    OpenSession {
        session: ServerEnd<SessionMarker>,
        control_handle: PartitionControlHandle,
    },
    OpenSessionWithOffsetMap {
        session: ServerEnd<SessionMarker>,
        mapping: BlockOffsetMapping,
        control_handle: PartitionControlHandle,
    },
    GetTypeGuid {
        responder: PartitionGetTypeGuidResponder,
    },
    GetInstanceGuid {
        responder: PartitionGetInstanceGuidResponder,
    },
    GetName {
        responder: PartitionGetNameResponder,
    },
    GetMetadata {
        responder: PartitionGetMetadataResponder,
    },
}
Expand description

Partition describes a region of one or more block devices, labelled with distinguishing identifiers.

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GetInfo

Get information about the underlying block device.

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OpenSession

Opens a new FIFO-based session on the block device.

Fields

§session: ServerEnd<SessionMarker>
§control_handle: PartitionControlHandle
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OpenSessionWithOffsetMap

Opens a new FIFO-based session on the block device, providing a mapping which is transparently applied to device offsets in block FIFO requests.

This interface is intended to be used internally between nested Block implementations, in order to provide passthrough I/O. For example, a fixed partition map (e.g. GPT) will serve a Block protocol for each partition, and will respond to OpenSession requests by calling OpenSessionWithOffsetMap on the underlying block device, establishing itself as the source for translating client block offsets (relative to the partition start) to absolute offsets. The client can then communicate directly with the underlying block device, and the partition offsets can be transparently applied to requests.

Fields

§session: ServerEnd<SessionMarker>
§mapping: BlockOffsetMapping
§control_handle: PartitionControlHandle
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GetTypeGuid

Gets the type GUID of the partition (if one exists). If the partition has no type GUID, ZX_ERR_NOT_SUPPORTED is returned.

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GetInstanceGuid

Gets the instance GUID of the partition (if one exists). If the partition has no instance GUID, ZX_ERR_NOT_SUPPORTED is returned.

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GetName

Gets the name of the partition (if one exists). If the partition has no name, ZX_ERR_NOT_SUPPORTED is returned.

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GetMetadata

Gets the metadata for the partition.

Fields may be absent if the partition doesn’t have the given metadata.

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Trait Implementations§

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impl Debug for PartitionRequest

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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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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