Struct cpu_time::ThreadTime

pub struct ThreadTime(_, _);

CPU Time Used by The Current Thread

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

This type is non-thread-shareable (!Sync, !Send) because otherwise it's to easy to mess up times from different threads. However, you can freely send Duration's returned by elapsed() and duration_since().

Methods

impl ThreadTime

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 by the current thread 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 ThreadTime::now() panics.

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

Returns the amount of CPU time used by the current thread 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 ThreadTime

fn clone(&self) -> ThreadTime

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for ThreadTime

impl Eq for ThreadTime

impl PartialEq<ThreadTime> for ThreadTime

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

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &ThreadTime) -> bool

This method tests for !=.

impl Debug for ThreadTime

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

Formats the value using the given formatter.

impl Hash for ThreadTime

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, 

Feeds a slice of this type into the given [Hasher].