#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/wait.h>

int main() {
    pid_t pid;

    printf("--- Server Booted ---\n");

    // Fork the process to handle a new 'client connection'
    pid = fork();

    if (pid < 0) {
        // Error handling
        perror("Fork failed");
        exit(1);
    } 
    else if (pid == 0) {
        // --- CHILD PROCESS ---
        // This is the worker handling the specific task
        printf("Child [PID: %d]: Processing client request...\n", getpid());
        sleep(2); // Simulate processing time
        FILE *f = fopen("fork.txt","w");
        char *str = "Your requested processing is done.\n";
        fputs(str, f);
        fclose(f);
        printf("Child [PID: %d]: Request processed. Closing connection.\n", getpid());
        exit(0); // Child terminates after completing work
    } 
    else {
        // --- PARENT PROCESS ---
        // The parent continues to listen for new connections
        printf("Parent [PID: %d]: Dispatched child %d. Waiting for next request...\n", getpid(), pid);
        
        // Parent waits for the child to finish to prevent 'zombie' processes
        wait(NULL);
        printf("Parent [PID: %d]: Child process cleaned up.\n", getpid());
    }

    return 0;
}