Struct ReadValue

pub struct ReadValue {
    pub handle: Option<Handle>,
    pub value: Option<Vec<u8>>,
    pub maybe_truncated: Option<bool>,
    /* private fields */
}

Wrapper around a possible truncated value received from the server.

Fields

handle: Option<Handle>

Characteristic or descriptor handle. Always present.

value: Option<Vec<u8>>

The value of the characteristic or descriptor. Always present.

maybe_truncated: Option<bool>

True if value might be truncated (the buffer was completely filled by the server). ReadCharacteristic or ReadDescriptor should be used to read the complete value. Always present.

Trait Implementations

impl Clone for ReadValue

fn clone(&self) -> ReadValue

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ReadValue

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

Formats the value using the given formatter.

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

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 ReadValue

fn default() -> ReadValue

Returns the “default value” for a type.

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

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 ReadValue

fn eq(&self, other: &ReadValue) -> 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 ReadValue

type Owned = ReadValue

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 ReadValue

type Borrowed<'a> = &'a ReadValue

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 ReadValue

impl StructuralPartialEq for ReadValue