Struct FrameInfo2

pub struct FrameInfo2 {
    pub buffer_index: Option<u32>,
    pub frame_counter: Option<u64>,
    pub timestamp: Option<i64>,
    pub capture_timestamp: Option<i64>,
    pub release_fence: Option<EventPair>,
    /* private fields */
}

Metadata concerning a given frame.

Fields

buffer_index: Option<u32>

Identifies the buffer used for this frame as an index into the most recently negotiated buffer collection.

frame_counter: Option<u64>

A monotonically increasing counter indicating the number of frames written to this stream’s most recently negotiated buffer collection. Clients can use this to detect dropped frames or generate nominal timestamps using the associated stream’s framerate.

timestamp: Option<i64>

The value of the system monotonic clock, measured at the time the hardware completed populating the buffer.

capture_timestamp: Option<i64>

The value of the system monotonic clock, measured at the time the hardware completed populating the original buffer used to derive the contents of this buffer.

release_fence: Option<EventPair>

The client must close this when it has completed reading from the buffer.

Trait Implementations

impl Debug for FrameInfo2

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

Formats the value using the given formatter.

impl Decode<FrameInfo2, DefaultFuchsiaResourceDialect> for FrameInfo2

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<'_, DefaultFuchsiaResourceDialect>, offset: usize, depth: Depth, ) -> Result<()>

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

impl Default for FrameInfo2

fn default() -> FrameInfo2

Returns the “default value” for a type.

impl Encode<FrameInfo2, DefaultFuchsiaResourceDialect> for &mut FrameInfo2

unsafe fn encode( self, encoder: &mut Encoder<'_, DefaultFuchsiaResourceDialect>, 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 FrameInfo2

fn eq(&self, other: &FrameInfo2) -> 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 ResourceTypeMarker for FrameInfo2

type Borrowed<'a> = &'a mut FrameInfo2

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

fn take_or_borrow<'a>( value: &'a mut <Self as TypeMarker>::Owned, ) -> Self::Borrowed<'a>

Cheaply converts from &mut Self::Owned to Self::Borrowed. For HandleBased types this is “take” (it returns an owned handle and replaces value with Handle::invalid), and for all other types it is “borrow” (just converts from one reference to another).

impl TypeMarker for FrameInfo2

type Owned = FrameInfo2

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 Standalone<DefaultFuchsiaResourceDialect> for FrameInfo2

impl StructuralPartialEq for FrameInfo2