init

data/generated.ts

@@ -0,0 +1,86 @@
+export const program = `import { TextLineStream } from "https://deno.land/std@0.224.0/streams/text_line_stream.ts";
+import type { Msg } from "./lib/types.ts";
+
+async function main() {
+	const [sokcet_path] = Deno.args;
+	if (sokcet_path === undefined) throw new Error("Feur.");
+
+	const socket = Deno.listen({ transport: "unix", path: sokcet_path });
+	const connection = await socket.accept();
+	const lines = connection.readable
+		.pipeThrough(new TextDecoderStream())
+		.pipeThrough(new TextLineStream());
+
+	const stats = new Tracker();
+	try {
+		for await (const line of lines) stats.update(JSON.parse(line) as Msg);
+	} catch (_) { /* STDOUT closed */ }
+
+	stats.log();
+}
+
+class Tracker {
+	register;
+
+	constructor() {
+		this.register = new Map<string, SectionTracker>();
+	}
+
+	update(message: Msg) {
+		if (message[0] === 0) this.get_tracker_for(message[1]).tip(message[2]);
+		if (message[0] === 1) this.get_tracker_for(message[1]).top(message[2]);
+		if (message[0] === 2) this.log();
+	}
+
+	get_tracker_for(section: string) {
+		const stored = this.register.get(section);
+		if (stored !== undefined) return stored;
+		const new_ = new SectionTracker(section);
+		this.register.set(section, new_);
+		return new_;
+	}
+
+	log() {
+		for (const section of this.register.values()) section.log();
+		Deno.exit(0);
+	}
+}
+
+class SectionTracker {
+	name;
+	runs;
+	current_tip;
+
+	constructor(name: string) {
+		this.name = name;
+		this.runs = [] as number[];
+		this.current_tip = null as number | null;
+	}
+
+	tip(timestamp_ns: number) {
+		if (this.current_tip !== null) throw new Error(\`Second TIP before TOP on section \${this.name}.\`);
+		this.current_tip = timestamp_ns;
+	}
+
+	top(timestamp_ns: number) {
+		if (this.current_tip === null) throw new Error(\`TOP before TIP on section \${this.name}.\`);
+		const duration = timestamp_ns - this.current_tip;
+		this.current_tip = null;
+		this.runs.push(duration);
+	}
+
+	log() {
+		const count = this.runs.length;
+		const avg = this.average() / 1_000;
+		const line = \`\${this.name} :\\t\${count} runs, \${avg} µs avg\`;
+		console.log(line);
+	}
+
+	average() {
+		const total = this.runs.reduce((a, b) => a + b);
+		return total / this.runs.length;
+	}
+}
+
+if (import.meta.main) await main();
+`;