From e359ae60624b3c2507c731e59bf8f53ca572b62c Mon Sep 17 00:00:00 2001
From: Yagiz Nizipli <yagiz@nizipli.com>
Date: Sat, 8 Feb 2025 14:52:40 -0500
Subject: [PATCH 1/6] timers: set several methods EOL

---
 doc/api/deprecations.md                       | 12 +++++
 lib/timers.js                                 | 35 --------------
 test/parallel/test-timers-active.js           | 34 --------------
 .../test-timers-enroll-invalid-msecs.js       | 38 ---------------
 .../test-timers-enroll-second-time.js         | 16 -------
 .../test-timers-max-duration-warning.js       | 12 +----
 .../test-timers-unenroll-unref-interval.js    |  3 +-
 test/parallel/test-timers-unref-active.js     | 47 -------------------
 ...emove-other-unref-timers-only-one-fires.js | 41 ----------------
 ...-timers-unref-remove-other-unref-timers.js | 30 ------------
 10 files changed, 14 insertions(+), 254 deletions(-)
 delete mode 100644 test/parallel/test-timers-active.js
 delete mode 100644 test/parallel/test-timers-enroll-invalid-msecs.js
 delete mode 100644 test/parallel/test-timers-enroll-second-time.js
 delete mode 100644 test/parallel/test-timers-unref-active.js
 delete mode 100644 test/parallel/test-timers-unref-remove-other-unref-timers-only-one-fires.js
 delete mode 100644 test/parallel/test-timers-unref-remove-other-unref-timers.js

diff --git a/doc/api/deprecations.md b/doc/api/deprecations.md
index ba0676f1b84da5..554bdf426118ca 100644
--- a/doc/api/deprecations.md
+++ b/doc/api/deprecations.md
@@ -2065,6 +2065,9 @@ method.
 
 <!-- YAML
 changes:
+  - version: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/56966
+    description: End-of-Life.
   - version: v10.0.0
     pr-url: https://github.com/nodejs/node/pull/18066
     description: Runtime deprecation.
@@ -2079,6 +2082,9 @@ Type: Runtime
 
 <!-- YAML
 changes:
+  - version: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/56966
+    description: End-of-Life.
   - version: v10.0.0
     pr-url: https://github.com/nodejs/node/pull/18066
     description: Runtime deprecation.
@@ -2613,6 +2619,9 @@ The `node:_stream_wrap` module is deprecated.
 
 <!-- YAML
 changes:
+  - version: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/56966
+    description: End-of-Life.
   - version: v11.14.0
     pr-url: https://github.com/nodejs/node/pull/26760
     description: Runtime deprecation.
@@ -2629,6 +2638,9 @@ with no performance impact since Node.js 10.
 
 <!-- YAML
 changes:
+  - version: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/56966
+    description: End-of-Life.
   - version: v11.14.0
     pr-url: https://github.com/nodejs/node/pull/26760
     description: Runtime deprecation.
diff --git a/lib/timers.js b/lib/timers.js
index 1f801c734d575e..8884137a808174 100644
--- a/lib/timers.js
+++ b/lib/timers.js
@@ -46,18 +46,14 @@ const {
   },
   kRefed,
   kHasPrimitive,
-  getTimerDuration,
   timerListMap,
   timerListQueue,
   immediateQueue,
-  active,
-  unrefActive,
   insert,
   knownTimersById,
 } = require('internal/timers');
 const {
   promisify: { custom: customPromisify },
-  deprecate,
 } = require('internal/util');
 let debug = require('internal/util/debuglog').debuglog('timer', (fn) => {
   debug = fn;
@@ -111,20 +107,6 @@ function unenroll(item) {
   item._idleTimeout = -1;
 }
 
-// Make a regular object able to act as a timer by setting some properties.
-// This function does not start the timer, see `active()`.
-// Using existing objects as timers slightly reduces object overhead.
-function enroll(item, msecs) {
-  msecs = getTimerDuration(msecs, 'msecs');
-
-  // If this item was already in a list somewhere
-  // then we should unenroll it from that
-  if (item._idleNext) unenroll(item);
-
-  L.init(item);
-  item._idleTimeout = msecs;
-}
-
 
 /**
  * Schedules the execution of a one-time `callback`
@@ -351,23 +333,6 @@ module.exports = timers = {
   clearImmediate,
   setInterval,
   clearInterval,
-  _unrefActive: deprecate(
-    unrefActive,
-    'timers._unrefActive() is deprecated.' +
-    ' Please use timeout.refresh() instead.',
-    'DEP0127'),
-  active: deprecate(
-    active,
-    'timers.active() is deprecated. Please use timeout.refresh() instead.',
-    'DEP0126'),
-  unenroll: deprecate(
-    unenroll,
-    'timers.unenroll() is deprecated. Please use clearTimeout instead.',
-    'DEP0096'),
-  enroll: deprecate(
-    enroll,
-    'timers.enroll() is deprecated. Please use setTimeout instead.',
-    'DEP0095'),
 };
 
 ObjectDefineProperties(timers, {
diff --git a/test/parallel/test-timers-active.js b/test/parallel/test-timers-active.js
deleted file mode 100644
index ac79c6fc1e1ca0..00000000000000
--- a/test/parallel/test-timers-active.js
+++ /dev/null
@@ -1,34 +0,0 @@
-'use strict';
-require('../common');
-const assert = require('assert');
-const active = require('timers').active;
-
-// active() should create timers for these
-const legitTimers = [
-  { _idleTimeout: 0 },
-  { _idleTimeout: 1 },
-];
-
-legitTimers.forEach(function(legit) {
-  const savedTimeout = legit._idleTimeout;
-  active(legit);
-  // active() should mutate these objects
-  assert.strictEqual(legit._idleTimeout, savedTimeout);
-  assert(Number.isInteger(legit._idleStart));
-  assert(legit._idleNext);
-  assert(legit._idlePrev);
-});
-
-
-// active() should not create a timer for these
-const bogusTimers = [
-  { _idleTimeout: -1 },
-  { _idleTimeout: undefined },
-];
-
-bogusTimers.forEach(function(bogus) {
-  const savedTimeout = bogus._idleTimeout;
-  active(bogus);
-  // active() should not mutate these objects
-  assert.deepStrictEqual(bogus, { _idleTimeout: savedTimeout });
-});
diff --git a/test/parallel/test-timers-enroll-invalid-msecs.js b/test/parallel/test-timers-enroll-invalid-msecs.js
deleted file mode 100644
index 466f1a2c4a8872..00000000000000
--- a/test/parallel/test-timers-enroll-invalid-msecs.js
+++ /dev/null
@@ -1,38 +0,0 @@
-'use strict';
-
-require('../common');
-const assert = require('assert');
-const timers = require('timers');
-
-[
-  {},
-  [],
-  'foo',
-  () => { },
-  Symbol('foo'),
-].forEach((val) => {
-  assert.throws(
-    () => timers.enroll({}, val),
-    {
-      code: 'ERR_INVALID_ARG_TYPE',
-      name: 'TypeError'
-    }
-  );
-});
-
-[
-  -1,
-  Infinity,
-  NaN,
-].forEach((val) => {
-  assert.throws(
-    () => timers.enroll({}, val),
-    {
-      code: 'ERR_OUT_OF_RANGE',
-      name: 'RangeError',
-      message: 'The value of "msecs" is out of range. ' +
-               'It must be a non-negative finite number. ' +
-               `Received ${val}`
-    }
-  );
-});
diff --git a/test/parallel/test-timers-enroll-second-time.js b/test/parallel/test-timers-enroll-second-time.js
deleted file mode 100644
index a914e6c4a18a98..00000000000000
--- a/test/parallel/test-timers-enroll-second-time.js
+++ /dev/null
@@ -1,16 +0,0 @@
-'use strict';
-
-const common = require('../common');
-
-const assert = require('assert');
-const timers = require('timers');
-
-const enrollObj = {
-  _onTimeout: common.mustCall(),
-};
-
-timers.enroll(enrollObj, 1);
-assert.strictEqual(enrollObj._idleTimeout, 1);
-timers.enroll(enrollObj, 10);
-assert.strictEqual(enrollObj._idleTimeout, 10);
-timers.active(enrollObj);
diff --git a/test/parallel/test-timers-max-duration-warning.js b/test/parallel/test-timers-max-duration-warning.js
index a104c1700db81d..cc9595ff9ccef0 100644
--- a/test/parallel/test-timers-max-duration-warning.js
+++ b/test/parallel/test-timers-max-duration-warning.js
@@ -2,7 +2,6 @@
 
 const common = require('../common');
 const assert = require('assert');
-const timers = require('timers');
 
 const OVERFLOW = Math.pow(2, 31); // TIMEOUT_MAX is 2^31-1
 
@@ -19,7 +18,7 @@ process.on('warning', common.mustCall((warning) => {
   assert.strictEqual(lines[0], `${OVERFLOW} does not fit into a 32-bit signed` +
                                ' integer.');
   assert.strictEqual(lines.length, 2);
-}, 6));
+}, 2));
 
 
 {
@@ -31,12 +30,3 @@ process.on('warning', common.mustCall((warning) => {
   const interval = setInterval(timerNotCanceled, OVERFLOW);
   clearInterval(interval);
 }
-
-{
-  const timer = {
-    _onTimeout: timerNotCanceled
-  };
-  timers.enroll(timer, OVERFLOW);
-  timers.active(timer);
-  timers.unenroll(timer);
-}
diff --git a/test/parallel/test-timers-unenroll-unref-interval.js b/test/parallel/test-timers-unenroll-unref-interval.js
index 8d9203a04ac96d..f0e965296f94b4 100644
--- a/test/parallel/test-timers-unenroll-unref-interval.js
+++ b/test/parallel/test-timers-unenroll-unref-interval.js
@@ -1,7 +1,6 @@
 'use strict';
 
 const common = require('../common');
-const timers = require('timers');
 
 {
   const interval = setInterval(common.mustCall(() => {
@@ -17,7 +16,7 @@ const timers = require('timers');
 
 {
   const interval = setInterval(common.mustCall(() => {
-    timers.unenroll(interval);
+    clearInterval(interval);
   }), 1).unref();
 }
 
diff --git a/test/parallel/test-timers-unref-active.js b/test/parallel/test-timers-unref-active.js
deleted file mode 100644
index a620304089e500..00000000000000
--- a/test/parallel/test-timers-unref-active.js
+++ /dev/null
@@ -1,47 +0,0 @@
-'use strict';
-
-// This test is aimed at making sure that unref timers queued with
-// timers._unrefActive work correctly.
-//
-// Basically, it queues one timer in the unref queue, and then queues
-// it again each time its timeout callback is fired until the callback
-// has been called ten times.
-//
-// At that point, it unenrolls the unref timer so that its timeout callback
-// is not fired ever again.
-//
-// Finally, a ref timeout is used with a delay large enough to make sure that
-// all 10 timeouts had the time to expire.
-
-require('../common');
-const timers = require('timers');
-const assert = require('assert');
-
-const someObject = {};
-let nbTimeouts = 0;
-
-// libuv 0.10.x uses GetTickCount on Windows to implement timers, which uses
-// system's timers whose resolution is between 10 and 16ms. See
-// http://msdn.microsoft.com/en-us/library/windows/desktop/ms724408.aspx
-// for more information. That's the lowest resolution for timers across all
-// supported platforms. We're using it as the lowest common denominator,
-// and thus expect 5 timers to be able to fire in under 100 ms.
-const N = 5;
-const TEST_DURATION = 1000;
-
-timers.unenroll(someObject);
-timers.enroll(someObject, 1);
-
-someObject._onTimeout = function _onTimeout() {
-  ++nbTimeouts;
-
-  if (nbTimeouts === N) timers.unenroll(someObject);
-
-  timers._unrefActive(someObject);
-};
-
-timers._unrefActive(someObject);
-
-setTimeout(function() {
-  assert.strictEqual(nbTimeouts, N);
-}, TEST_DURATION);
diff --git a/test/parallel/test-timers-unref-remove-other-unref-timers-only-one-fires.js b/test/parallel/test-timers-unref-remove-other-unref-timers-only-one-fires.js
deleted file mode 100644
index 07c2f4398278b7..00000000000000
--- a/test/parallel/test-timers-unref-remove-other-unref-timers-only-one-fires.js
+++ /dev/null
@@ -1,41 +0,0 @@
-'use strict';
-
-
-// The goal of this test is to make sure that, after the regression introduced
-// by 934bfe23a16556d05bfb1844ef4d53e8c9887c3d, the fix preserves the following
-// behavior of unref timers: if two timers are scheduled to fire at the same
-// time, if one unenrolls the other one in its _onTimeout callback, the other
-// one will *not* fire.
-
-// This behavior is a private implementation detail and should not be
-// considered public interface.
-
-require('../common');
-const timers = require('timers');
-const assert = require('assert');
-
-let nbTimersFired = 0;
-
-const foo = {
-  _onTimeout: function() {
-    ++nbTimersFired;
-    timers.unenroll(bar);
-  }
-};
-
-const bar = {
-  _onTimeout: function() {
-    ++nbTimersFired;
-    timers.unenroll(foo);
-  }
-};
-
-timers.enroll(bar, 1);
-timers._unrefActive(bar);
-
-timers.enroll(foo, 1);
-timers._unrefActive(foo);
-
-setTimeout(function() {
-  assert.notStrictEqual(nbTimersFired, 2);
-}, 20);
diff --git a/test/parallel/test-timers-unref-remove-other-unref-timers.js b/test/parallel/test-timers-unref-remove-other-unref-timers.js
deleted file mode 100644
index 0926bd308c1efa..00000000000000
--- a/test/parallel/test-timers-unref-remove-other-unref-timers.js
+++ /dev/null
@@ -1,30 +0,0 @@
-'use strict';
-
-// Regression test for https://github.com/nodejs/node-v0.x-archive/issues/8897.
-
-// Test some private implementation details that should not be
-// considered public interface.
-const common = require('../common');
-const timers = require('timers');
-
-const foo = {
-  _onTimeout: common.mustNotCall('_onTimeout should not be called')
-};
-
-const bar = {
-  _onTimeout: common.mustCall(function() {
-    timers.unenroll(foo);
-  })
-};
-
-// We use timers with expiration times that are sufficiently apart to make
-// sure that they're not fired at the same time on platforms where the timer
-// resolution is a bit coarse (e.g Windows with a default resolution of ~15ms).
-timers.enroll(bar, 1);
-timers._unrefActive(bar);
-
-timers.enroll(foo, 50);
-timers._unrefActive(foo);
-
-// Keep the process open.
-setTimeout(() => {}, 100);

From d0e40a3d4d92c0732115aa819fdb11f87c6408a6 Mon Sep 17 00:00:00 2001
From: Yagiz Nizipli <yagiz@nizipli.com>
Date: Sun, 9 Feb 2025 14:16:36 -0500
Subject: [PATCH 2/6] fixup! timers: set several methods EOL

---
 doc/api/deprecations.md | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/doc/api/deprecations.md b/doc/api/deprecations.md
index 554bdf426118ca..5d9af0082d2b22 100644
--- a/doc/api/deprecations.md
+++ b/doc/api/deprecations.md
@@ -2073,7 +2073,7 @@ changes:
     description: Runtime deprecation.
 -->
 
-Type: Runtime
+Type: End-of-Life
 
 `timers.enroll()` is deprecated. Please use the publicly documented
 [`setTimeout()`][] or [`setInterval()`][] instead.
@@ -2090,7 +2090,7 @@ changes:
     description: Runtime deprecation.
 -->
 
-Type: Runtime
+Type: End-of-Life
 
 `timers.unenroll()` is deprecated. Please use the publicly documented
 [`clearTimeout()`][] or [`clearInterval()`][] instead.
@@ -2627,7 +2627,7 @@ changes:
     description: Runtime deprecation.
 -->
 
-Type: Runtime
+Type: End-of-Life
 
 The previously undocumented `timers.active()` is deprecated.
 Please use the publicly documented [`timeout.refresh()`][] instead.
@@ -2646,7 +2646,7 @@ changes:
     description: Runtime deprecation.
 -->
 
-Type: Runtime
+Type: End-of-Life
 
 The previously undocumented and "private" `timers._unrefActive()` is deprecated.
 Please use the publicly documented [`timeout.refresh()`][] instead.

From d4be01539d18bc4a188ebbc6dd15a88ee27a488f Mon Sep 17 00:00:00 2001
From: Yagiz Nizipli <yagiz@nizipli.com>
Date: Sun, 9 Feb 2025 14:34:20 -0500
Subject: [PATCH 3/6] Update doc/api/deprecations.md

Co-authored-by: Marco Ippolito <marcoippolito54@gmail.com>
---
 doc/api/deprecations.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/api/deprecations.md b/doc/api/deprecations.md
index 5d9af0082d2b22..a9b8cc6bd4b2fb 100644
--- a/doc/api/deprecations.md
+++ b/doc/api/deprecations.md
@@ -2092,7 +2092,7 @@ changes:
 
 Type: End-of-Life
 
-`timers.unenroll()` is deprecated. Please use the publicly documented
+`timers.unenroll()` has been removed. Please use the publicly documented
 [`clearTimeout()`][] or [`clearInterval()`][] instead.
 
 ### DEP0097: `MakeCallback` with `domain` property

From 455b2ef5fcd557dc4165a69f2f72848356863ebc Mon Sep 17 00:00:00 2001
From: Yagiz Nizipli <yagiz@nizipli.com>
Date: Sun, 9 Feb 2025 14:34:28 -0500
Subject: [PATCH 4/6] Update doc/api/deprecations.md

Co-authored-by: Marco Ippolito <marcoippolito54@gmail.com>
---
 doc/api/deprecations.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/api/deprecations.md b/doc/api/deprecations.md
index a9b8cc6bd4b2fb..2a8c26a5c90a9f 100644
--- a/doc/api/deprecations.md
+++ b/doc/api/deprecations.md
@@ -2075,7 +2075,7 @@ changes:
 
 Type: End-of-Life
 
-`timers.enroll()` is deprecated. Please use the publicly documented
+`timers.enroll()` has been removed. Please use the publicly documented
 [`setTimeout()`][] or [`setInterval()`][] instead.
 
 ### DEP0096: `timers.unenroll()`

From 85590069ba3d0ddcb253d2c269725ce094b26039 Mon Sep 17 00:00:00 2001
From: Yagiz Nizipli <yagiz@nizipli.com>
Date: Sun, 9 Feb 2025 14:34:36 -0500
Subject: [PATCH 5/6] Update doc/api/deprecations.md

Co-authored-by: Marco Ippolito <marcoippolito54@gmail.com>
---
 doc/api/deprecations.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/api/deprecations.md b/doc/api/deprecations.md
index 2a8c26a5c90a9f..45e16ffebd8238 100644
--- a/doc/api/deprecations.md
+++ b/doc/api/deprecations.md
@@ -2648,7 +2648,7 @@ changes:
 
 Type: End-of-Life
 
-The previously undocumented and "private" `timers._unrefActive()` is deprecated.
+The previously undocumented and "private" `timers._unrefActive()` has been removed.
 Please use the publicly documented [`timeout.refresh()`][] instead.
 If unreferencing the timeout is necessary, [`timeout.unref()`][] can be used
 with no performance impact since Node.js 10.

From f94223f1e5a10c5ca46e3c29af66c9f8cfd7ac5f Mon Sep 17 00:00:00 2001
From: Yagiz Nizipli <yagiz@nizipli.com>
Date: Sun, 9 Feb 2025 14:34:43 -0500
Subject: [PATCH 6/6] Update doc/api/deprecations.md

Co-authored-by: Marco Ippolito <marcoippolito54@gmail.com>
---
 doc/api/deprecations.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/api/deprecations.md b/doc/api/deprecations.md
index 45e16ffebd8238..1cebecf5884436 100644
--- a/doc/api/deprecations.md
+++ b/doc/api/deprecations.md
@@ -2629,7 +2629,7 @@ changes:
 
 Type: End-of-Life
 
-The previously undocumented `timers.active()` is deprecated.
+The previously undocumented `timers.active()` has been removed.
 Please use the publicly documented [`timeout.refresh()`][] instead.
 If re-referencing the timeout is necessary, [`timeout.ref()`][] can be used
 with no performance impact since Node.js 10.