class LoopLimiter

LoopLimiter is used to detect when a thread is looping for "too long".

Example usage:

// Make sure we spend no more than 30,000 nanoseconds in the loop.

auto limiter = LoopLimiter

<

>::WithDuration(30000);

while (!limiter.Exceeded()) {

...

}

Because getting the current ticks may be expensive in some virtualized

environments, the template parameter |ItersPerGetTicks| controls how often

|current_ticks| is called. For example:

// Make sure we spend no more than 30,000 nanoseconds in the loop, but

// don't call current_mono_ticks() more than once every 1,000 loop iterations.

auto limiter = LoopLimiter

<

1000>::WithDuration(30000);

while (!limiter.Exceeded()) {

...

}

An |ItersPerGetTicks| value of 1 means call |current_ticks| for each

invocation of |Exceeded|.