class SF::Clock
inherits Reference
#
Utility class that measures the elapsed time
SF::Clock is a lightweight class for measuring time.
Its provides the most precise time that the underlying OS can achieve (generally microseconds or nanoseconds). It also ensures monotonicity, which means that the returned time can never go backward, even if the system time is changed.
Usage example:
clock = SF::Clock.new
# [...]
time1 = clock.elapsed_time
# [...]
time2 = clock.restart
The SF::Time value returned by the clock can then be
converted to a number of seconds, milliseconds or even
microseconds.
See also: SF::Time
Constructors#
Methods#
#dup : Clock#
Returns a shallow copy of this object.
This allocates a new object and copies the contents of
self into it.
#elapsed_time : Time#
Get the elapsed time
This function returns the time elapsed since the last call
to restart() (or the construction of the instance if restart()
has not been called).
Returns: Time elapsed
#restart : Time#
Restart the clock
This function puts the time counter back to zero. It also returns the time elapsed since the clock was started.
Returns: Time elapsed