zbus

Struct MessageHeader

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pub struct MessageHeader<'m> { /* private fields */ }
Expand description

The message header, containing all the metadata about the message.

This includes both the MessagePrimaryHeader and MessageFields.

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impl<'m> MessageHeader<'m>

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pub fn new(primary: MessagePrimaryHeader, fields: MessageFields<'m>) -> Self

Create a new MessageHeader instance.

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pub fn primary(&self) -> &MessagePrimaryHeader

Get a reference to the primary header.

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pub fn primary_mut(&mut self) -> &mut MessagePrimaryHeader

Get a mutable reference to the primary header.

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pub fn into_primary(self) -> MessagePrimaryHeader

Get the primary header, consuming self.

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pub fn fields<'s>(&'s self) -> &'s MessageFields<'m>

Get a reference to the message fields.

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pub fn fields_mut<'s>(&'s mut self) -> &'s mut MessageFields<'m>

Get a mutable reference to the message fields.

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pub fn into_fields(self) -> MessageFields<'m>

Get the message fields, consuming self.

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pub fn message_type(&self) -> Result<MessageType, Error>

The message type

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pub fn path<'s>(&'s self) -> Result<Option<&ObjectPath<'m>>, Error>

The object to send a call to, or the object a signal is emitted from.

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pub fn interface<'s>(&'s self) -> Result<Option<&InterfaceName<'m>>, Error>

The interface to invoke a method call on, or that a signal is emitted from.

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pub fn member<'s>(&'s self) -> Result<Option<&MemberName<'m>>, Error>

The member, either the method name or signal name.

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pub fn error_name<'s>(&'s self) -> Result<Option<&ErrorName<'m>>, Error>

The name of the error that occurred, for errors.

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pub fn reply_serial(&self) -> Result<Option<u32>, Error>

The serial number of the message this message is a reply to.

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pub fn destination<'s>(&'s self) -> Result<Option<&BusName<'m>>, Error>

The name of the connection this message is intended for.

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pub fn sender<'s>(&'s self) -> Result<Option<&UniqueName<'m>>, Error>

Unique name of the sending connection.

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pub fn signature(&self) -> Result<Option<&Signature<'m>>, Error>

The signature of the message body.

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pub fn unix_fds(&self) -> Result<Option<u32>, Error>

The number of Unix file descriptors that accompany the message.

Trait Implementations§

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impl<'m> Clone for MessageHeader<'m>

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fn clone(&self) -> MessageHeader<'m>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'m> Debug for MessageHeader<'m>

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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<'de: 'm, 'm> Deserialize<'de> for MessageHeader<'m>

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl<'m> From<MessageHeader<'m>> for MessageBuilder<'m>

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fn from(header: MessageHeader<'m>) -> Self

Converts to this type from the input type.
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impl<'m> Serialize for MessageHeader<'m>

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl<'m> Type for MessageHeader<'m>

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fn signature() -> Signature<'static>

Get the signature for the implementing type. Read more

Auto Trait Implementations§

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impl<'m> !Freeze for MessageHeader<'m>

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impl<'m> RefUnwindSafe for MessageHeader<'m>

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impl<'m> Send for MessageHeader<'m>

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impl<'m> Sync for MessageHeader<'m>

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impl<'m> Unpin for MessageHeader<'m>

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impl<'m> UnwindSafe for MessageHeader<'m>

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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<'de, T> DynamicDeserialize<'de> for T
where T: Type + Deserialize<'de> + ?Sized,

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type Deserializer = PhantomData<T>

A DeserializeSeed implementation for this type.
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fn deserializer_for_signature<S>( signature: S, ) -> Result<<T as DynamicDeserialize<'de>>::Deserializer, Error>
where S: TryInto<Signature<'de>>, <S as TryInto<Signature<'de>>>::Error: Into<Error>,

Get a deserializer compatible with this signature.
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impl<T> DynamicType for T
where T: Type + ?Sized,

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fn dynamic_signature(&self) -> Signature<'_>

Get the signature for the implementing type. 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 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> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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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
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,