Struct forest_filecoin::shim::fvm_latest::kernel::prelude::GasTimer
source · pub struct GasTimer(Option<GasTimerInner>);
Expand description
A handle returned by charge_gas
which must be used to mark the end of
the execution associated with that gas.
Tuple Fields§
§0: Option<GasTimerInner>
Implementations§
source§impl GasTimer
impl GasTimer
sourcepub fn start() -> Instant
pub fn start() -> Instant
Convenience method to start measuring time before the charge is made.
Use the return value with [GasTimer::finish_with] to override the internal instant that the timer was started with.
sourcepub fn new(duration: &mut GasDuration) -> GasTimer
pub fn new(duration: &mut GasDuration) -> GasTimer
Create a new timer that will update the elapsed time of a charge when it’s finished.
As a side effect it will establish the cell in the GasDuration
, if it has been empty so far.
When compiled in debug mode, passing a “filled” duration will panic.
sourcepub fn stop_with(self, start: Instant)
pub fn stop_with(self, start: Instant)
Record the elapsed time based on an instant taken before the charge was made.
sourcepub fn record<R, E>(self, result: Result<R, E>) -> Result<R, E>
pub fn record<R, E>(self, result: Result<R, E>) -> Result<R, E>
Convenience method to record the elapsed time only if some execution was successful.
There’s no need to record the time of unsuccessful executions because we don’t know how they would compare to successful ones; maybe the error arised before the bulk of the computation could have taken place.
Trait Implementations§
Auto Trait Implementations§
impl Freeze for GasTimer
impl RefUnwindSafe for GasTimer
impl Send for GasTimer
impl Sync for GasTimer
impl Unpin for GasTimer
impl UnwindSafe for GasTimer
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