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Function `std.datetime.stopwatch.StopWatch.peek`

Peek at the amount of time that the the StopWatch has been running.


						
				Duration peek() nothrow @nogc @safe const;

This does not include any time during which the StopWatch was stopped but does include all of the time that it was running and not just the time since it was started last.

Calling reset will reset this to Duration.zero.

Example

import core.thread : Thread;

auto sw = StopWatch(AutoStart.no);
writeln(sw.peek()); // Duration.zero
sw.start();

Thread.sleep(usecs(1));
assert(sw.peek() >= usecs(1));

Thread.sleep(usecs(1));
assert(sw.peek() >= usecs(2));

sw.stop();
immutable stopped = sw.peek();
Thread.sleep(usecs(1));
writeln(sw.peek()); // stopped

sw.start();
Thread.sleep(usecs(1));
assert(sw.peek() > stopped);

Authors

Jonathan M Davis and Kato Shoichi

License

Boost License 1.0.