SystemTime Class Reference

Platform-agnostic monotonic clock. More...

#include <Time.h>

Static Public Member Functions
static Ticks	now ()
static uint32_t	diffSecs (Ticks start, Ticks end)
static uint32_t	diffMillisecs (Ticks start, Ticks end)
static uint32_t	diffMicrosecs (Ticks start, Ticks end)
static uint64_t	ticksToMicrosecs (Ticks ticks)

Detailed Description

Platform-agnostic monotonic clock.

Definition at line 24 of file Time.h.

Member Function Documentation

diffMicrosecs()

static uint32_t SystemTime::diffMicrosecs ( Ticks start, Ticks end )

inlinestatic

Returns

whole microseconds elapsed between two now() samples. This is the granularity an emulator core's frame-sync loop actually needs.

Parameters

start	the earlier sample
end	the later sample - must not be earlier than start

Definition at line 66 of file Time.h.

diffMillisecs()

static uint32_t SystemTime::diffMillisecs ( Ticks start, Ticks end )

inlinestatic

Returns

whole milliseconds elapsed between two now() samples

Parameters

start	the earlier sample
end	the later sample - must not be earlier than start

Definition at line 52 of file Time.h.

diffSecs()

static uint32_t SystemTime::diffSecs ( Ticks start, Ticks end )

inlinestatic

Returns

whole seconds elapsed between two now() samples

Parameters

start	the earlier sample
end	the later sample - must not be earlier than start

Definition at line 40 of file Time.h.

now()

static Ticks SystemTime::now ( )

inlinestatic

Returns

the current monotonic timestamp

Definition at line 28 of file Time.h.

ticksToMicrosecs()

static uint64_t SystemTime::ticksToMicrosecs ( Ticks ticks )

inlinestatic

Returns

an already-elapsed raw tick COUNT (not two timestamps to diff) converted to microseconds, as a 64-bit value. Unlike diffMicrosecs() above, this is meant for converting an accumulator that has been summing raw (end - start) tick deltas across many samples - the accumulated total can exceed what diffMicrosecs()'s 32-bit microsecond return can hold long before any single sample would.

Parameters

ticks

an elapsed duration, in the same units as Ticks

Definition at line 83 of file Time.h.

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The documentation for this class was generated from the following file:

• source/drivers/Time.h