Initial content

2024-05-29 18:54:49 +01:00
parent 2dbc1a8088
commit 5215a1d919
1944 changed files with 203378 additions and 0 deletions
@@ -0,0 +1,14 @@
+{
+    "products": [
+        { "id": 1, "name": "Kayak", "category": "Watersports", 
+            "description": "A boat for one person", "price": 275 },
+        { "id": 2, "name": "Lifejacket", "category": "Watersports", 
+            "description": "Protective and fashionable", "price": 48.95 },
+        { "id": 3, "name": "Soccer Ball", "category": "Soccer", 
+            "description": "FIFA-approved size and weight", 
+            "price": 19.50 },
+        { "id": 4, "name": "Corner Flags", "category": "Soccer", 
+            "description": "Give your playing field a professional touch", 
+            "price": 34.95 }
+    ]
+}
@@ -0,0 +1,230 @@
+{
+  "name": "webapp",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "webapp",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "@types/node": "^20.6.1"
+      },
+      "devDependencies": {
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+        "tsc-watch": "^6.0.4",
+        "typescript": "^5.2.2"
+      }
+    },
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+      "dev": true,
+      "dependencies": {
+        "cross-spawn": "^7.0.3",
+        "node-cleanup": "^2.1.2",
+        "ps-tree": "^1.2.0",
+        "string-argv": "^0.3.1"
+      },
+      "bin": {
+        "tsc-watch": "dist/lib/tsc-watch.js"
+      },
+      "engines": {
+        "node": ">=12.12.0"
+      },
+      "peerDependencies": {
+        "typescript": "*"
+      }
+    },
+    "node_modules/typescript": {
+      "version": "5.2.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.2.2.tgz",
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+      "dev": true,
+      "bin": {
+        "tsc": "bin/tsc",
+        "tsserver": "bin/tsserver"
+      },
+      "engines": {
+        "node": ">=14.17"
+      }
+    },
+    "node_modules/which": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
+      "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
+      "dev": true,
+      "dependencies": {
+        "isexe": "^2.0.0"
+      },
+      "bin": {
+        "node-which": "bin/node-which"
+      },
+      "engines": {
+        "node": ">= 8"
+      }
+    }
+  }
+}
@@ -0,0 +1,20 @@
+{
+  "name": "webapp",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "start": "tsc-watch --onsuccess \"node dist/server.js\""
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "@tsconfig/node20": "^20.1.2",
+    "tsc-watch": "^6.0.4",
+    "typescript": "^5.2.2"
+  },
+  "dependencies": {
+    "@types/node": "^20.6.1"
+  }
+}
@@ -0,0 +1,29 @@
+import { Worker } from "worker_threads";
+
+export const Count = (request: number, 
+        iterations: number, total: number) : Promise<void> => {
+
+    return new Promise<void>((resolve, reject) => {
+
+        const worker = new Worker(__dirname + "/count_worker.js", {
+            workerData: {
+                iterations, total, request
+            }
+        });
+
+        worker.on("message", (iter) => {
+            const msg = `Request: ${request}, Iteration: ${(iter)}`;            
+            console.log(msg);            
+        }); 
+
+       worker.on("exit", (code) => {
+            if (code !== 0) {
+                reject();
+            } else {
+                resolve();
+            }
+        });
+        
+       worker.on("error", reject);        
+    });
+}
@@ -0,0 +1,12 @@
+import { workerData, parentPort  } from "worker_threads";
+
+console.log(`Worker thread ${workerData.request} started`);
+
+for (let iter = 0; iter < workerData.iterations; iter++) {
+    for (let count = 0; count < workerData.total; count++) {
+        count++;
+    }
+    parentPort?.postMessage(iter);
+}
+
+console.log(`Worker thread ${workerData.request} finished`);
@@ -0,0 +1,25 @@
+import { Worker } from "worker_threads";
+
+export const Count = (request: number, iterations: number, total: number, 
+        callback: (err: Error | null, update: number | boolean) => void) => {
+
+    const worker = new Worker(__dirname + "/count_worker.js", {
+        workerData: {
+            iterations, 
+            total, 
+            request
+        }
+    });
+    
+    worker.on("message", async (iter: number) => {
+        callback(null, iter);
+    });
+    
+    worker.on("exit", async (code: number) => {
+        callback(code === 0 ? null : new Error(), true);
+    });
+    
+    worker.on("error", async (err) => {
+        callback(err, true);
+    });        
+}
@@ -0,0 +1,23 @@
+import { IncomingMessage, ServerResponse } from "http";
+import { endPromise, writePromise } from "./promises";
+//import { Count } from "./counter_cb";
+import { Count } from "./count_promise";
+
+const total = 2_000_000_000;
+const iterations = 15;
+let shared_counter = 0;
+
+export const handler = async (req: IncomingMessage, res: ServerResponse) => {
+    const request = shared_counter++;
+
+    try {
+        await Count(request, iterations, total);
+        const msg = `Request: ${request}, Iterations: ${(iterations)}`;        
+        await writePromise.bind(res)(msg + "\n");                   
+        await endPromise.bind(res)("Done");        
+    } catch (err: any) {
+        console.log(err);
+        res.statusCode = 500;
+        res.end();
+    }
+};
@@ -0,0 +1,8 @@
+import { ServerResponse } from "http";
+import { promisify } from "util";
+
+export const endPromise = promisify(ServerResponse.prototype.end) as 
+    (data: any) => Promise<void>;
+
+export const writePromise = promisify(ServerResponse.prototype.write) as
+    (data: any) => Promise<void>;
@@ -0,0 +1,21 @@
+import { createServer } from "http";
+import { handler } from "./handler";
+
+const port = 5000;
+
+const server = createServer();
+
+server.on("request", (req, res) => {
+    if (req.url?.endsWith("favicon.ico")) {
+        res.statusCode = 404;
+        res.end();
+    } else {
+        handler(req, res)
+    }
+});
+
+server.listen(port);
+
+server.on("listening", () => {
+    console.log(`(Event) Server listening on port ${port}`);
+});
@@ -0,0 +1,8 @@
+{
+    "extends": "@tsconfig/node20/tsconfig.json",
+     "compilerOptions": {                       
+         "rootDir": "src",   
+         "outDir": "dist",                                    
+     }
+ }
+