41 lines
951 B
JavaScript
41 lines
951 B
JavaScript
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/*
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* Test using timers and intervals.
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*/
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function main() {
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var i;
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var counters = [];
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var ntimers = 0;
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print('set interval timer');
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var intervalTimer = setInterval(function () {
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print(new Date().toISOString() + ': timers pending: ' + ntimers);
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if (ntimers === 0) {
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clearInterval(intervalTimer);
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}
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}, 500);
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function addTimer(interval) {
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ntimers++;
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setTimeout(function () {
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ntimers--;
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}, interval);
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}
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/* Here the inserts take a lot of time because the underlying timer manager
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* data structure has O(n) insertion performance.
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*/
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print('launch timers');
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for (i = 0; i < 4000; i++) {
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// Math.exp(0)...Math.exp(8) is an uneven distribution between 1...~2980.
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addTimer(16000 - Math.exp(Math.random() * 8) * 5);
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}
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print('timers launched');
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}
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try {
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main();
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} catch (e) {
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print(e.stack || e);
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}
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