perf_hooks: implement histogram based api

Add a sampling-based event loop delay monitor.

```js
const { monitorEventLoopDelay } = require('perf_hooks');

const h = monitorEventLoopDelay();

h.enable();

h.disable();

console.log(h.percentiles);
console.log(h.min);
console.log(h.max);
console.log(h.mean);
console.log(h.stddev);
console.log(h.percentile(50));
```

PR-URL: https://github.com/nodejs/node/pull/25378
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>

2 files changed, 5 insertions, 1 deletions

diff --git a/tools/doc/type-parser.js b/tools/doc/type-parser.js
index 96dd98737f..ffbec9115c 100644
--- a/tools/doc/type-parser.js
+++ b/tools/doc/type-parser.js
@@ -16,7 +16,7 @@ const jsPrimitives = {
 const jsGlobalObjectsUrl = `${jsDocPrefix}Reference/Global_Objects/`;
 const jsGlobalTypes = [
   'Array', 'ArrayBuffer', 'DataView', 'Date', 'Error', 'EvalError', 'Function',
-  'Object', 'Promise', 'RangeError', 'ReferenceError', 'RegExp', 'Set',
+  'Map', 'Object', 'Promise', 'RangeError', 'ReferenceError', 'RegExp', 'Set',
   'SharedArrayBuffer', 'SyntaxError', 'TypeError', 'TypedArray', 'URIError',
   'Uint8Array',
 ];
@@ -75,6 +75,8 @@ const customTypesMap = {
   'fs.Stats': 'fs.html#fs_class_fs_stats',
   'fs.WriteStream': 'fs.html#fs_class_fs_writestream',
 
+  'Histogram': 'perf_hooks.html#perf_hooks_class_histogram',
+
   'http.Agent': 'http.html#http_class_http_agent',
   'http.ClientRequest': 'http.html#http_class_http_clientrequest',
   'http.IncomingMessage': 'http.html#http_class_http_incomingmessage',
diff --git a/tools/license-builder.sh b/tools/license-builder.sh
index 1c884508e3..be808f00d1 100755
--- a/tools/license-builder.sh
+++ b/tools/license-builder.sh
@@ -95,4 +95,6 @@ addlicense "large_pages" "src/large_pages" "$(sed -e '/SPDX-License-Identifier/,
 # brotli
 addlicense "brotli" "deps/brotli" "$(cat ${rootdir}/deps/brotli/LICENSE)"
 
+addlicense "HdrHistogram" "deps/histogram" "$(cat ${rootdir}/deps/histogram/LICENSE.txt)"
+
 mv $tmplicense $licensefile