Struct ProcessId 

pub struct ProcessId(/* private fields */);

A globally-unique id identifying a process.

The primary purpose of this id is to provide a globally-unique context within which ThreadIds and SpanContexts are guaranteed to be unique. On a normal operating system that is the process, on other systems it should be whatever is the closest equivalent, e.g. for most embedded setups it should be unique for each time the system is restarted.

Implementations

impl ProcessId

pub fn random(rng: &mut impl Rng) -> ProcessId

Uses a random number generator to generate the ProcessId.

pub const fn from_raw(raw: u128) -> ProcessId

Creates a ProcessId from a raw value

Extra care needs to be taken that this is not a constant value or re-used in any way.

When possible prefer using ProcessId::random.

pub fn to_raw(self) -> u128

Returns the raw value of this id.

Trait Implementations

impl Clone for ProcessId

fn clone(&self) -> ProcessId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ProcessId

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

Formats the value using the given formatter.

impl Default for ProcessId

fn default() -> ProcessId

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ProcessId

fn deserialize<D>( deserializer: D, ) -> Result<ProcessId, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ProcessId

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

Formats the value using the given formatter.

impl FromStr for ProcessId

type Err = ParseIntError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<ProcessId, <ProcessId as FromStr>::Err>

Parses a string s to return a value of this type.

impl Hash for ProcessId

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

where __H: Hasher,

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 ProcessId

fn cmp(&self, other: &ProcessId) -> 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 ProcessId

fn eq(&self, other: &ProcessId) -> 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 ProcessId

fn partial_cmp(&self, other: &ProcessId) -> 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 Serialize for ProcessId

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for ProcessId

impl Eq for ProcessId

impl StructuralPartialEq for ProcessId