Ping pong signals C

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

void SIGUSR1_handler(int);
void SIGUSR2_handler(int);

int receive1 = 0;
int receive2 = 0;
static int *scorePlayer1;
static int *scorePlayer2;


int main(int argc, char const *argv[])
{
    int frappe = 0;
    srand(time(NULL));
    scorePlayer1 = mmap(NULL,sizeof *scorePlayer1,PROT_READ | PROT_WRITE,MAP_SHARED | MAP_ANONYMOUS, -1, 0); //Memoire partagée entre les process
    *scorePlayer1 = 0;
    scorePlayer2 = mmap(NULL,sizeof *scorePlayer2,PROT_READ | PROT_WRITE,MAP_SHARED | MAP_ANONYMOUS, -1, 0);
    *scorePlayer2 = 0;
    signal(SIGUSR1,SIGUSR1_handler);
    signal(SIGUSR2,SIGUSR2_handler);


    pid_t pid = fork(); //Create child process




    switch (pid)
    {

        case 0: //Fils

            while(*scorePlayer1 <=13 && *scorePlayer2 <= 13)
            {


                    while(receive1 ==0) //Permet de synchroniser les process
                    {}
                    if(*scorePlayer2 == 13)
                    {
                        printf("J'ai gagné ! pourquoi ai-je un pere aussi nul ?\n");
                        fflush(stdout);
                        kill(getppid(),SIGTERM);
                        exit(EXIT_SUCCESS);
                    }
                    frappe = (rand() % 100);
                    if(frappe < 50) //Reussi son coup
                    {



                    }
                    else //Loupe la balle
                    {
                        printf("Le joueur fils loupe sa frappe, le pere gagne 1 point\n");
                        fflush(stdout);
                        *scorePlayer1 = *scorePlayer1 +1;
                        printf("Score actuel %d (pere) à %d (fils) \n",*scorePlayer1,*scorePlayer2);
                        fflush(stdout);
                    }
                    printf("PONG \n");
                    fflush(stdout);
                    *compteur = *compteur +1;
                    receive1 = 0;
                    sleep(1);
                    kill(getppid(),SIGUSR2);
            }

            break;
        default: //Pere
            receive2 = 1;
            printf("Le pere engage le match\n");
            fflush(stdout);

            while(*scorePlayer1 <= 13 && *scorePlayer2 <= 13)
            {

                    while(receive2 == 0) //Permet de synchroniser les process
                    {}
                    if(*scorePlayer1 == 13)
                    {
                        printf("J'ai gagné ! pourquoi ai-je fait un enfant aussi nul ?\n");
                        fflush(stdout);
                        kill(pid,SIGTERM);
                        exit(EXIT_SUCCESS);
                    }
                    frappe = (rand() % 100);
                    if(frappe < 50) //Reussis son coup
                    {

                    }
                    else //Rate la balle
                    {
                        printf("Le joueur pere loupe sa frappe, le fils gagne 1 point\n");
                        fflush(stdout);
                        *scorePlayer2 = *scorePlayer2 +1;
                        printf("Score actuel %d (pere) à %d (fils) \n",*scorePlayer1,*scorePlayer2);
                        fflush(stdout);
                    }
                    printf("PING \n");
                    fflush(stdout);
                    receive2 = 0;
                    sleep(1);
                    kill(pid,SIGUSR1);


        }


        break;


    }



    return 0;
}

void SIGUSR1_handler(int signum)
{
    if(signum == SIGUSR1)
    {
            receive1 = 1;
    }

}
void SIGUSR2_handler(int signum)
{
    if(signum == SIGUSR2)
    {
        receive2 = 1;
    }
}