All files / lib/internal/perf utils.js

100% Statements 33/33
100% Branches 6/6
100% Functions 3/3
100% Lines 33/33

Press n or j to go to the next uncovered block, b, p or k for the previous block.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 3418x 18x 18x 18x 18x 18x 18x 18x 18x 18x 18x 18x 125363x 125363x 125363x 125363x 18x 239x 239x 239x 239x 186x 239x 18x 5372x 5372x 5372x 18x 18x 18x 18x 18x 18x  
'use strict';
 
const binding = internalBinding('performance');
const {
  milestones,
  getTimeOrigin,
} = binding;
 
// TODO(joyeecheung): we may want to warn about access to
// this during snapshot building.
let timeOrigin = getTimeOrigin();
 
function now() {
  const hr = process.hrtime();
  return (hr[0] * 1000 + hr[1] / 1e6) - timeOrigin;
}
 
function getMilestoneTimestamp(milestoneIdx) {
  const ns = milestones[milestoneIdx];
  if (ns === -1)
    return ns;
  return ns / 1e6 - timeOrigin;
}
 
function refreshTimeOrigin() {
  timeOrigin = getTimeOrigin();
}
 
module.exports = {
  now,
  getMilestoneTimestamp,
  refreshTimeOrigin
};