StreamId

tor_cell::relaycell

Struct StreamId 

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pub struct StreamId(/* private fields */);
Expand description

Identify a single stream on a circuit.

These identifiers are local to each hop on a circuit. This can’t be zero; if you need something that can be zero in the protocol, use Option<StreamId>.

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impl StreamId

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pub fn new(stream_id: u16) -> Option<Self>

Creates a StreamId for non-zero stream_id.

Returns None when stream_id is zero. Messages with a zero/None stream ID apply to the circuit as a whole instead of a particular stream.

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pub fn get_or_zero(stream_id: Option<Self>) -> u16

Convenience function to convert to a u16; None is mapped to 0.

Trait Implementations§

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impl Clone for StreamId

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fn clone(&self) -> StreamId

Returns a duplicate 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 Debug for StreamId

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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 Display for StreamId

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

Formats the value using the given formatter. Read more
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impl From<NonZero<u16>> for StreamId

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fn from(id: NonZeroU16) -> Self

Converts to this type from the input type.
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impl From<StreamId> for NonZeroU16

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fn from(id: StreamId) -> NonZeroU16

Converts to this type from the input type.
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impl From<StreamId> for u16

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fn from(id: StreamId) -> u16

Converts to this type from the input type.
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impl HasMemoryCostStructural for StreamId

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fn indirect_memory_cost(&self, et: EnabledToken) -> usize

Memory cost of data stored out-of-line Read more
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impl Hash for StreamId

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for StreamId

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

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl PartialEq for StreamId

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

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for StreamId

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

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

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

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impl Eq for StreamId

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impl StructuralPartialEq for StreamId

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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<'a, T, E> AsTaggedExplicit<'a, E> for T
where T: 'a,

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fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

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impl<'a, T, E> AsTaggedImplicit<'a, E> for T
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fn implicit( self, class: Class, constructed: bool, tag: u32, ) -> TaggedParser<'a, Implicit, Self, E>

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fn borrow(&self) -> &T

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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, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<Q, K> Comparable<K> for Q
where Q: Ord + ?Sized, K: Borrow<Q> + ?Sized,

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fn compare(&self, key: &K) -> Ordering

Compare self to key and return their ordering.
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where Self: Into<T>,

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fn equivalent(&self, key: &K) -> bool

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where Self: Binary,

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where Self: Display,

Causes self to use its Display implementation when Debug-formatted.
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where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
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fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
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where Self: Pointer,

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fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

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where Self: UpperHex,

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where &'a Self: for<'a> IntoIterator,

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> HasMemoryCost for T
where T: HasMemoryCostStructural,

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fn memory_cost(&self, et: EnabledToken) -> usize

Returns the memory cost of self, in bytes Read more
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impl<T> HasTypedMemoryCost<T> for T
where T: HasMemoryCost,

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fn typed_memory_cost(&self, enabled: EnabledToken) -> TypedMemoryCost<T>

The cost, as a TypedMemoryCost<T> rather than a raw usize
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Calls U::from(self).

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where Self: Sized,

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where R: 'a,

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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: 2 bytes