Add definition for "pidusage". (#16126)

* Add definition for "throng".

* Fix tslint errors.

* Add definition for "pidusage".

* Remove definition for "throng".

* Fix mistakes.

types/pidusage/index.d.ts

@@ -0,0 +1,12 @@
+// Type definitions for pidusage 1.1
+// Project: https://github.com/soyuka/pidusage
+// Definitions by: Cyril Schumacher <https://github.com/cyrilschumacher/>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export interface Stat {
+    cpu: number;
+    memory: number;
+}
+
+export function stat(pid: number, callback: (error: Error, stat: Stat) => void): void;
+export function unmonitor(pid: number): void;

types/pidusage/pidusage-tests.ts

@@ -0,0 +1,8 @@
+import pusage = require("pidusage");
+
+pusage.stat(0, (err: Error, stat: pusage.Stat) => {
+	const cpu = stat.cpu;
+	const memory = stat.memory;
+});
+
+pusage.unmonitor(0);

types/pidusage/tsconfig.json

@@ -0,0 +1,22 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "pidusage-tests.ts"
+    ]
+}

types/pidusage/tslint.json

@@ -0,0 +1,3 @@
+{
+    "extends": "dtslint/dt.json"
+}