pub struct SessionInfo {
    pub descriptors: Option<Vmo>,
    pub data: Option<Vmo>,
    pub descriptor_version: Option<u8>,
    pub descriptor_length: Option<u8>,
    pub descriptor_count: Option<u16>,
    pub options: Option<SessionFlags>,
    /* private fields */
}
Expand description

Session configuration.

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§descriptors: Option<Vmo>

VMO containing the descriptors. Required.

16-bit indices transmitted over the FIFOs index a descriptor in this VMO (byte offset = descriptor_length * 8 * index).

§data: Option<Vmo>

VMO containing frame data. Required.

Descriptors contain byte-offsets that are used to index arbitrary regions in data.

§descriptor_version: Option<u8>

Requested descriptor version. Required.

If the network device does not support the requested descriptor version, [Device.OpenSession] fails with ZX_ERR_NOT_SUPPORTED.

§descriptor_length: Option<u8>

Descriptor length, in 64-bit words. Required.

The length of each descriptor in the descriptors VMO. This is used as a multiplier to find byte offsets in descriptors given a descriptor index passed through the rx or tx FIFOs.

§descriptor_count: Option<u16>

Total number of descriptors that can be used by this session. Required.

Descriptor indices transferred through either the rx or tx FIFO must be in the range [0, descriptor_count).

§options: Option<SessionFlags>

Extra options. Interpreted as empty bitmask if absent.

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impl SessionInfo

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pub const EMPTY: Self = _

An empty table with every field set to None.

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impl Debug for SessionInfo

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

Formats the value using the given formatter. Read more
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impl Decodable for SessionInfo

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fn new_empty() -> Self

Creates a new value of this type with an “empty” representation.
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fn decode(&mut self, decoder: &mut Decoder<'_>, offset: usize) -> Result<()>

Decodes an object of this type from the decoder’s buffers into self. Callers must ensure that offset is a multiple of Layout::inline_align, and that decoder.buf has room for reading Layout::inline_size bytes at offset. Read more
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impl Encodable for SessionInfo

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fn encode( &mut self, encoder: &mut Encoder<'_, '_>, offset: usize, recursion_depth: usize ) -> Result<()>

Encode the object into the buffer. Any handles stored in the object are swapped for Handle::INVALID. Callers must ensure that offset is a multiple of Layout::inline_align, and that encoder.buf has room for writing Layout::inline_size bytes at offset. Read more
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impl Layout for SessionInfo

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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.
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fn inline_size(_context: &Context) -> usize

Returns the size of the inline portion of the encoded object, including padding for the type’s alignment. Must be a multiple of inline_align.
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fn supports_simple_copy() -> boolwhere Self: Sized,

Returns true iff the type can be encoded or decoded via simple copy. Read more
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impl PartialEq<SessionInfo> for SessionInfo

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for SessionInfo

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impl TopLevel for SessionInfo

Auto Trait Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> LayoutObject for Twhere T: Layout,

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fn inline_align(&self, context: &Context) -> usize

See Layout::inline_align.
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fn inline_size(&self, context: &Context) -> usize

See Layout::inline_size.
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impl<T> Pointable for T

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const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more