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‎lib/child_process.js‎
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‎test/fixtures/child-process-stay-alive-forever.js‎
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‎test/fixtures/child-process-stay-alive-forever.js‎
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‎test/parallel/test-child-process-fork-abort-signal.js‎
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‎test/parallel/test-child-process-fork-abort-signal.js‎
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@@ -351,6 +351,9 @@ controller.abort();
 <!-- YAML
 added: v0.5.0
 changes:
+  - version: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/36603
+    description: AbortSignal support was added.
   - version:
       - v13.2.0
       - v12.16.0
@@ -375,9 +378,11 @@ changes:
   * `execPath` {string} Executable used to create the child process.
   * `execArgv` {string[]} List of string arguments passed to the executable.
     **Default:** `process.execArgv`.
+  * `gid` {number} Sets the group identity of the process (see setgid(2)).
   * `serialization` {string} Specify the kind of serialization used for sending
     messages between processes. Possible values are `'json'` and `'advanced'`.
     See [Advanced serialization][] for more details. **Default:** `'json'`.
+  * `signal` {AbortSignal} Allows closing the subprocess using an AbortSignal.
   * `silent` {boolean} If `true`, stdin, stdout, and stderr of the child will be
     piped to the parent, otherwise they will be inherited from the parent, see
     the `'pipe'` and `'inherit'` options for [`child_process.spawn()`][]'s
@@ -386,10 +391,9 @@ changes:
     When this option is provided, it overrides `silent`. If the array variant
     is used, it must contain exactly one item with value `'ipc'` or an error
     will be thrown. For instance `[0, 1, 2, 'ipc']`.
+  * `uid` {number} Sets the user identity of the process (see setuid(2)).
   * `windowsVerbatimArguments` {boolean} No quoting or escaping of arguments is
     done on Windows. Ignored on Unix. **Default:** `false`.
-  * `uid` {number} Sets the user identity of the process (see setuid(2)).
-  * `gid` {number} Sets the group identity of the process (see setgid(2)).
 * Returns: {ChildProcess}
 
 The `child_process.fork()` method is a special case of
@@ -420,6 +424,9 @@ current process.
 The `shell` option available in [`child_process.spawn()`][] is not supported by
 `child_process.fork()` and will be ignored if set.
 
+The `signal` option works exactly the same way it does in
+[`child_process.spawn()`][].
+
 ### `child_process.spawn(command[, args][, options])`
 <!-- YAML
 added: v0.1.90
 
@@ -140,7 +140,7 @@ function fork(modulePath /* , args, options */) {
   options.execPath = options.execPath || process.execPath;
   options.shell = false;
 
-  return spawn(options.execPath, args, options);
+  return spawnWithSignal(options.execPath, args, options);
 }
 
 function _forkChild(fd, serializationMode) {
@@ -758,7 +758,7 @@ function spawnWithSignal(file, args, options) {
     validateAbortSignal(options.signal, 'options.signal');
     function kill() {
       if (child._handle) {
-        child._handle.kill('SIGTERM');
+        child.kill('SIGTERM');
         child.emit('error', new AbortError());
       }
     }
 
@@ -0,0 +1,3 @@
+setInterval(() => {
+    // Starting an interval to stay alive.
+}, 1000);
@@ -0,0 +1,33 @@
+'use strict';
+
+const { mustCall } = require('../common');
+const { strictEqual } = require('assert');
+const fixtures = require('../common/fixtures');
+const { fork } = require('child_process');
+
+{
+  // Test aborting a forked child_process after calling fork
+  const ac = new AbortController();
+  const { signal } = ac;
+  const cp = fork(fixtures.path('child-process-stay-alive-forever.js'), {
+    signal
+  });
+  cp.on('exit', mustCall());
+  cp.on('error', mustCall((err) => {
+    strictEqual(err.name, 'AbortError');
+  }));
+  process.nextTick(() => ac.abort());
+}
+{
+  // Test passing an already aborted signal to a forked child_process
+  const ac = new AbortController();
+  const { signal } = ac;
+  ac.abort();
+  const cp = fork(fixtures.path('child-process-stay-alive-forever.js'), {
+    signal
+  });
+  cp.on('exit', mustCall());
+  cp.on('error', mustCall((err) => {
+    strictEqual(err.name, 'AbortError');
+  }));
+}
Original file line number	Diff line number	Diff line change
`@@ -140,7 +140,7 @@ function fork(modulePath /* , args, options */) {`
`140`	`140`	`options.execPath = options.execPath \|\| process.execPath;`
`141`	`141`	`options.shell = false;`
`142`	`142`
`143`		`- return spawn(options.execPath, args, options);`
	`143`	`+ return spawnWithSignal(options.execPath, args, options);`
`144`	`144`	`}`
`145`	`145`
`146`	`146`	`function _forkChild(fd, serializationMode) {`
`@@ -758,7 +758,7 @@ function spawnWithSignal(file, args, options) {`
`758`	`758`	`validateAbortSignal(options.signal, 'options.signal');`
`759`	`759`	`function kill() {`
`760`	`760`	`if (child._handle) {`
`761`		`- child._handle.kill('SIGTERM');`
	`761`	`+ child.kill('SIGTERM');`
`762`	`762`	`child.emit('error', new AbortError());`
`763`	`763`	`}`
`764`	`764`	`}`