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doc/api
- process.md
src
- node.cc
test/parallel
- test-process-ppid.js

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`‎doc/api/process.md‎`

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+13Lines changed: 13 additions & 0 deletions

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Original file line number	Diff line number	Diff line change
`@@ -1326,6 +1326,19 @@ system platform on which the Node.js process is running. For instance`
`1326`	`1326`	console.log(`This platform is ${process.platform}`);
`1327`	`1327`	```
`1328`	`1328`
	`1329`	`+## process.ppid`
	`1330`	`+<!-- YAML`
	`1331`	`+added: REPLACEME`
	`1332`	`+-->`
	`1333`	`+`
	`1334`	`+* {integer}`
	`1335`	`+`
	`1336`	+The `process.ppid` property returns the PID of the current parent process.
	`1337`	`+`
	`1338`	+```js
	`1339`	+console.log(`The parent process is pid ${process.ppid}`);
	`1340`	+```
	`1341`	`+`
`1329`	`1342`	`## process.release`
`1330`	`1343`	`<!-- YAML`
`1331`	`1344`	`added: v3.0.0`

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`‎src/node.cc‎`

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+9Lines changed: 9 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -2950,6 +2950,12 @@ static void EnvEnumerator(const PropertyCallbackInfo<Array>& info) {`
`2950`	`2950`	`}`
`2951`	`2951`
`2952`	`2952`
	`2953`	`+static void GetParentProcessId(Local<Name> property,`
	`2954`	`+ const PropertyCallbackInfo<Value>& info) {`
	`2955`	`+ info.GetReturnValue().Set(Integer::New(info.GetIsolate(), uv_os_getppid()));`
	`2956`	`+}`
	`2957`	`+`
	`2958`	`+`
`2953`	`2959`	`static Local<Object> GetFeatures(Environment* env) {`
`2954`	`2960`	`EscapableHandleScope scope(env->isolate());`
`2955`	`2961`
`@@ -3305,6 +3311,9 @@ void SetupProcessObject(Environment* env,`
`3305`	`3311`	`READONLY_PROPERTY(process, "pid", Integer::New(env->isolate(), getpid()));`
`3306`	`3312`	`READONLY_PROPERTY(process, "features", GetFeatures(env));`
`3307`	`3313`
	`3314`	`+ process->SetAccessor(FIXED_ONE_BYTE_STRING(env->isolate(), "ppid"),`
	`3315`	`+ GetParentProcessId);`
	`3316`	`+`
`3308`	`3317`	`auto need_immediate_callback_string =`
`3309`	`3318`	`FIXED_ONE_BYTE_STRING(env->isolate(), "_needImmediateCallback");`
`3310`	`3319`	`CHECK(process->SetAccessor(env->context(), need_immediate_callback_string,`

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`‎test/parallel/test-process-ppid.js‎`

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+16Lines changed: 16 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,16 @@`
	`1`	`+'use strict';`
	`2`	`+require('../common');`
	`3`	`+const assert = require('assert');`
	`4`	`+const cp = require('child_process');`
	`5`	`+`
	`6`	`+if (process.argv[2] === 'child') {`
	`7`	`+ // The following console.log() call is part of the test's functionality.`
	`8`	`+ console.log(process.ppid);`
	`9`	`+} else {`
	`10`	`+ const child = cp.spawnSync(process.execPath, [__filename, 'child']);`
	`11`	`+`
	`12`	`+ assert.strictEqual(child.status, 0);`
	`13`	`+ assert.strictEqual(child.signal, null);`
	`14`	`+ assert.strictEqual(+child.stdout.toString().trim(), process.pid);`
	`15`	`+ assert.strictEqual(child.stderr.toString().trim(), '');`
	`16`	`+}`

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