Enum HeapType

#[repr(u64)]
pub enum HeapType {
    SystemRam = 0,
    AmlogicSecure = 1_152_921_504_606_912_512,
    AmlogicSecureVdec = 1_152_921_504_606_912_513,
    GoldfishDeviceLocal = 1_152_921_504_606_978_048,
    GoldfishHostVisible = 1_152_921_504_606_978_049,
    Framebuffer = 1_152_921_504_607_043_585,
}

Known heap types. Device specific types should have bit 60 set. Top order bit is reserved and should not be set.

This type is deprecated for new code, but is still used by some camera code.

Variants

SystemRam = 0

AmlogicSecure = 1_152_921_504_606_912_512

Heap used for amlogic protected memory.

AmlogicSecureVdec = 1_152_921_504_606_912_513

Heap used for amlogic protected memory between decrypt and video decode.

GoldfishDeviceLocal = 1_152_921_504_606_978_048

Heap used by goldfish vulkan for device-local memory.

GoldfishHostVisible = 1_152_921_504_606_978_049

Heap used by goldfish vulkan for host-visible memory.

Framebuffer = 1_152_921_504_607_043_585

Heap used for display framebuffer. This is used by display drivers limited to a single framebuffer located at a specific physical address. The framebuffer heap makes it possible to create buffer collections for the framebuffer and enables sysmem support in these drivers.

Implementations

impl HeapType

pub fn from_primitive(prim: u64) -> Option<Self>

pub const fn into_primitive(self) -> u64

pub fn is_unknown(&self) -> bool

👎Deprecated: Strict enums should not use is_unknown

Trait Implementations

impl Clone for HeapType

fn clone(&self) -> HeapType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for HeapType

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

Formats the value using the given formatter.

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

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<D: ResourceDialect> Encode<HeapType, D> for HeapType

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 Hash for HeapType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for HeapType

fn cmp(&self, other: &HeapType) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for HeapType

fn eq(&self, other: &HeapType) -> 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 PartialOrd for HeapType

fn partial_cmp(&self, other: &HeapType) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl TypeMarker for HeapType

type Owned = HeapType

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 HeapType

type Borrowed<'a> = HeapType

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 Copy for HeapType

impl Eq for HeapType

impl StructuralPartialEq for HeapType