riot_coap_handler_demos::saul

Struct SaulHandler

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pub struct SaulHandler {
    prefix: &'static [&'static str],
}
Available on crate feature saul only.
Expand description

A handler for SAUL requests, using SAUL_MATCH_SUBTREE to manage its resources.

The path this is registered at must be passed in as the prefix, as link-format responses necessitate knowing one’s own path, and the prefix needs to be stripped off when processing the Uri-Path options.

As the link-format handler is bad, the name must be simple.

Fields§

§prefix: &'static [&'static str]

Implementations§

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impl SaulHandler

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pub fn new(prefix: &'static [&'static str]) -> Self

Create a SaulHandler

The prefix needs to be passed in in order to produce proper link-format responses which can not be path-relative, and should thus be equal to the prefix assigned in the tree.

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fn put_value( &self, entry: RegistryEntry, content_format: ContentFormat, body: &[u8], ) -> Result<(), Error>

Trait Implementations§

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impl Handler for SaulHandler

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type RequestData = SaulRequest

Type constructed in extract_request_data() passed on to build_response(). Read more
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type ExtractRequestError = Error

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type BuildResponseError<M: MinimalWritableMessage> = Error

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fn extract_request_data<M: ReadableMessage>( &mut self, request: &M, ) -> Result<SaulRequest, Error>

Process an incoming request. Read more
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fn estimate_length(&mut self, _: &<Self as Handler>::RequestData) -> usize

Estimate an upper bound for the number of bytes in the response Read more
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fn build_response<M: MutableWritableMessage>( &mut self, response: &mut M, request: Self::RequestData, ) -> Result<(), Self::BuildResponseError<M>>

Build a response for the request Read more
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impl Reporting for SaulHandler

A SaulHandler lists all its SAUL devices in /.well-known/core. This is especially useful when registering at a Resource Directory using simple registration and lookup clients try to discover sensors.

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Blanket Implementations§

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impl<T> Any for T
where 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 T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where 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<'a, OldRD, OldH> HandlerBuilder<'a, OldRD> for OldH
where OldH: Handler<RequestData = OldRD>,

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fn at<H>(self, path: &'a [&'a str], handler: H) -> ForkingHandler<'a, H, Self>
where H: Handler,

Divert requests arriving at path into the given handler. Read more
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fn at_with_attributes<H>( self, path: &'a [&'a str], attributes: &'a [Attribute], handler: H, ) -> ForkingHandler<'a, ConstantSingleRecordReport<'a, H>, Self>
where H: Handler,

Divert requests arriving at path into the given handler, and announce them with the given attributes in .well-known/core. Read more
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fn below<H>( self, path: &'a [&'a str], handler: H, ) -> ForkingTreeHandler<'a, H, Self>

Divert requests arriving with an Uri-Path starting with path to the given handler. Read more
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impl<T, U> Into<U> for T
where 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> IntoSwitch for T

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fn into_switch<ActiveLevel>(self) -> Switch<T, ActiveLevel>

Consumes the IoPin returning a Switch of the appropriate ActiveLevel. Read more
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fn into_active_low_switch(self) -> Switch<Self, ActiveLow>
where Self: Sized,

Consumes the IoPin returning a Switch<IoPin, ActiveLow>. Read more
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fn into_active_high_switch(self) -> Switch<Self, ActiveHigh>
where Self: Sized,

Consumes the IoPin returning a Switch<IoPin, ActiveHigh>. Read more
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impl<'a, OldRD, OldH> ReportingHandlerBuilder<'a, OldRD> for OldH
where OldH: Handler<RequestData = OldRD> + Reporting,

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fn with_wkc(self) -> WellKnownCore<Self>

Add a /.well-known/core resource that exposes the information the previous (stack of) handler(s) exposes throught the Reporting trait.
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where 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 T
where 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.

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 8 bytes