🧵 Scalable Thread Management Library (ThreadLab)

A fully functional C++17-based Scalable ThreadPool Management System with a live Web Dashboard UI.
This project demonstrates modern concurrency, task scheduling, auto-scaling thread pools, REST APIs, and a dynamic frontend — all in a single C++ file.

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🚀 Features

🔧 Backend — C++17 ThreadPool Engine

• Dynamic thread pool creation
• Auto-scaling worker threads
• Priority scheduling (High / Normal / Low)
• High-performance job queue
• Graceful shutdown
• Live metrics (active, queued, completed tasks)
• Chunk-based parallel_for demo for benchmarking

🌐 Frontend — Web Dashboard

• Fully responsive UI
• 2×2 grid control panel (Create Pool, Submit Tasks, Shutdown, Demo)
• Live statistics auto-refresh (every 2 seconds)
• Activity Log with timestamps
• Light/Dark mode toggle
• Smooth UI animations

🛠 API (REST - JSON over HTTP)

Endpoints: POST /api/pools?threads=N GET /api/pools POST /api/pools//tasks?count=N&priority=P POST /api/pools//shutdown POST /api/parallel_for_demo?N=X&chunk=Y

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📁 Project Structure

threadlab_web.cpp → Main C++ backend + embedded HTML + JS frontend httplib.h → Header-only HTTP server library (required) README.md → Project documentation

⚠️ Everything runs from a single .cpp file — easy to compile and perfect for university projects.

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🔧 How to Build on Windows (MinGW)

1️⃣ Compile

g++ threadlab_web.cpp -std=c++17 -O2 -lws2_32 -o threadlab_web.exe
./threadlab_web.exe

Open dashboard in browser
http://localhost:8080


📸 Dashboard Preview
<img width="1337" height="630" alt="image" src="https://github.com/user-attachments/assets/4b9706fa-91c3-41ef-b691-d4befa66f2bf" />


🧪 Usage Guide
✔ Create a thread pool

Enter number of threads → Create Pool

✔ Submit tasks

Choose:

Task Count

Priority (High/Normal/Low)

Pool ID

Click → Submit Tasks

✔ Stress Testing

Submit 10,000 jobs

Tests dynamic scaling & queue handling

✔ Parallel For Demo

Runs sum(0..N-1) using a temporary pool
Shows speedup with chunking.

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📝 Example Output Logs
[11:52:26 AM] Stress test: 10000 tasks queued on pool 2.
[11:52:19 AM] parallel_for demo: N=100000, chunk=1000, ms=1.
[11:51:59 AM] Created pool "DefaultPool" with ID 5 (2 threads).


💡 Why This Project?

This project demonstrates key OS + Systems concepts:

Multi-threading
Task scheduling
Real-time monitoring
REST architecture
Web UI integration
Auto-scaling thread pools

Perfect for:

Operating Systems assignment
Computer Architecture
C++ concurrency learning
Systems design practice

⭐ If you like this project

Give the repository a Star ⭐ on GitHub!