Elevator Control System 🚪🛗

A C-based simulation of an elevator system developed as a lab project for Operating Systems. The system uses First Come First Serve (FCFS) scheduling to manage elevator requests and demonstrates core OS concepts like process creation and inter-process communication (IPC) using pipes.

📌 Objective

Simulate an elevator that processes floor requests in the order they arrive (FCFS). The goal is to calculate:

• Waiting Time
• Completion Time
• Realistic elevator movement between floors

🧠 Key Features

• Randomly generates elevator requests (arrival time, target floor, burst time)
• Parent process creates and sends requests to the child process using pipes
• Child process calculates:
  • Waiting time
  • Completion time
  • Serves each request by simulating floor movement
• Tabular output of request details and timings

🔧 Technologies Used

• Language: C
• Concepts: Process Creation (fork()), Pipes, Structs, Scheduling
• Platform: Ubuntu (Linux Terminal)

🔄 Sample Workflow

1. Parent process generates 1–5 random elevator requests.
2. Sends requests to child process via a pipe.
3. Child process:
   • Processes each request in FCFS order.
   • Simulates elevator travel using sleep() based on burst time.
   • Calculates and prints waiting and completion times.

🏁 How to Run

gcc ecs-code.c -o ecs-code
./ecs-code