System Watchdog & Auto-Recovery Daemon

Overview

A lightweight, high-performance system daemon written in modern C++ (C++20). This tool automates server reliability by continuously monitoring running processes for memory leaks or CPU spikes. If a process exceeds its allocated resource limits for a sustained period, the watchdog automatically terminates the rogue process, initiates a recovery script, and logs the event.

Key Features

• Low Overhead: Written in native C++ with minimal dependencies, ensuring the monitor itself consumes negligible resources.
• Configurable Thresholds: Users can define soft and hard limits for CPU and RAM usage per process via a simple configuration file.
• Graceful Termination: Attempts a safe shutdown (SIGTERM) before forcing a kill (SIGKILL).
• Auto-Recovery: Capable of executing shell commands to restart critical services automatically.
• Cross-Platform Potential: Core logic is isolated, currently optimized for POSIX-compliant systems (Linux/macOS) with hooks available for Windows API expansion.

Tech Stack

• Language: C++20
• Build System: CMake
• Testing: Google Test (GTest)

Build Instructions

1. Ensure you have cmake and a C++20 compatible compiler installed (GCC/Clang).
2. Clone the repository and navigate to the root directory.
3. Build the project:

   mkdir build && cd build
   cmake ..
   make