Struct Descriptor

pub struct Descriptor {
    pub handle: Option<Handle>,
    pub type_: Option<Uuid>,
    pub permissions: Option<AttributePermissions>,
    /* private fields */
}

Represents a local or remote GATT characteristic descriptor.

Fields

handle: Option<Handle>

Uniquely identifies this descriptor within a service. For local descriptors, the specified handle must be unique across all characteristic and descriptor handles in this service.

Always present. For local descriptors, this value is mandatory.

type_: Option<Uuid>

The UUID that identifies the type of this descriptor. Always present. For local descriptors, this value is mandatory.

permissions: Option<AttributePermissions>

The attribute permissions of this descriptor. For remote descriptors, this value will not be present until the permissions are discovered via read and write requests.

For local descriptors, this value is mandatory.

Trait Implementations

impl Clone for Descriptor

fn clone(&self) -> Descriptor

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Descriptor

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

Formats the value using the given formatter.

impl<D: ResourceDialect> Decode<Descriptor, D> for Descriptor

fn new_empty() -> Self

Creates a valid instance of Self. The specific value does not matter, since it will be overwritten by decode.

unsafe fn decode( &mut self, decoder: &mut Decoder<'_, D>, offset: usize, depth: Depth, ) -> Result<()>

Decodes an object of type T from the decoder’s buffers into self.

impl Default for Descriptor

fn default() -> Descriptor

Returns the “default value” for a type.

impl<D: ResourceDialect> Encode<Descriptor, D> for &Descriptor

unsafe fn encode( self, encoder: &mut Encoder<'_, D>, offset: usize, depth: Depth, ) -> Result<()>

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

impl PartialEq for Descriptor

fn eq(&self, other: &Descriptor) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TypeMarker for Descriptor

type Owned = Descriptor

The owned Rust type which this FIDL type decodes into.

fn inline_align(_context: Context) -> usize

Returns the minimum required alignment of the inline portion of the encoded object. It must be a (nonzero) power of two.

fn inline_size(_context: Context) -> usize

Returns the size of the inline portion of the encoded object, including padding for alignment. Must be a multiple of inline_align.

fn encode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and encoding requires no validation. When true, we can optimize encoding arrays and vectors of Self::Owned to a single memcpy.

fn decode_is_copy() -> bool

Returns true if the memory layout of Self::Owned matches the FIDL wire format and decoding requires no validation. When true, we can optimize decoding arrays and vectors of Self::Owned to a single memcpy.

impl ValueTypeMarker for Descriptor

type Borrowed<'a> = &'a Descriptor

The Rust type to use for encoding. This is a particular Encode<Self> type cheaply obtainable from &Self::Owned. There are three cases:

fn borrow(value: &<Self as TypeMarker>::Owned) -> Self::Borrowed<'_>

Cheaply converts from &Self::Owned to Self::Borrowed.

impl Persistable for Descriptor

impl StructuralPartialEq for Descriptor