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8c7fe471fb
PR-URL: https://github.com/nodejs/node/pull/50492 Reviewed-By: Vinícius Lourenço Claro Cardoso <contact@viniciusl.com.br> Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com> Reviewed-By: Bryan English <bryan@bryanenglish.com> Reviewed-By: Chengzhong Wu <legendecas@gmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
28 lines
614 B
JavaScript
28 lines
614 B
JavaScript
'use strict';
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const {
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constants: {
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NODE_PERFORMANCE_MILESTONE_TIME_ORIGIN,
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},
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milestones,
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now,
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} = internalBinding('performance');
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function getTimeOrigin() {
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// Do not cache this to prevent it from being serialized into the
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// snapshot.
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return milestones[NODE_PERFORMANCE_MILESTONE_TIME_ORIGIN] / 1e6;
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}
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// Returns the milestone relative to the process start time in milliseconds.
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function getMilestoneTimestamp(milestoneIdx) {
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const ns = milestones[milestoneIdx];
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if (ns === -1)
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return ns;
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return ns / 1e6 - getTimeOrigin();
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}
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module.exports = {
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now,
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getMilestoneTimestamp,
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};
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