Function bufferUserTiming

lib/internal/perf/observe.js:399–428

* Add the user timing entry to the global buffer.

(entry)

 * Add the user timing entry to the global buffer.
 */
function bufferUserTiming(entry) {
  const entryType = entry.entryType;
  let buffer;
  if (entryType === 'mark') {
    buffer = markEntryBuffer;
  } else if (entryType === 'measure') {
    buffer = measureEntryBuffer;
  } else {
    return;
  }

  ArrayPrototypePush(buffer, entry);
  const count = buffer.length;

  if (count > kPerformanceEntryBufferWarnSize &&
    !kWarnedEntryTypes.has(entryType)) {
    kWarnedEntryTypes.set(entryType, true);
    // No error code for this since it is a Warning
    // eslint-disable-next-line no-restricted-syntax
    const w = new Error('Possible perf_hooks memory leak detected. ' +
                        `${count} ${entryType} entries added to the global ` +
                        'performance entry buffer. Use ' +
                        `${kClearPerformanceEntryBuffers[entryType]} to ` +
                        'clear the buffer.');
    w.name = 'MaxPerformanceEntryBufferExceededWarning';
    w.entryType = entryType;
    w.count = count;
    process.emitWarning(w);
  }
}

/**
 * Add the resource timing entry to the global buffer if the buffer size is not