Struct ProcessTime

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

CPU Time Used by The Whole Process

This is an opaque type similar to std::time::Instant. Use elapsed() or duration_since() to get meaningful time deltas.

Implementations

impl ProcessTime

pub fn try_now() -> Result<Self>

Get current CPU time used by a process process

pub fn now() -> Self

Get current CPU time used by a process

Panics

If CLOCK_THREAD_CPUTIME_ID is not supported by the kernel.

On Linux, it was added in version 2.6.12 (year 2005).
On OpenBSD & FreeBSD support was added in 2013.
On MacOS, clock_gettime was not supported until Sierra (2016).

pub fn try_elapsed(&self) -> Result<Duration>

Returns the amount of CPU time used from the previous timestamp to now.

pub fn elapsed(&self) -> Duration

Returns the amount of CPU time used from the previous timestamp to now.

Panics

If ProcessTime::now() panics.

pub fn duration_since(&self, timestamp: Self) -> Duration

Returns the amount of CPU time used from the previous timestamp.

pub fn as_duration(&self) -> Duration

Returns the total amount of CPU time used from the program start.

Trait Implementations

impl Clone for ProcessTime

fn clone(&self) -> ProcessTime

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ProcessTime

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

Formats the value using the given formatter.

impl Hash for ProcessTime

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

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 PartialEq for ProcessTime

fn eq(&self, other: &ProcessTime) -> 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 Copy for ProcessTime

impl Eq for ProcessTime

impl StructuralPartialEq for ProcessTime