#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <semaphore.h>


int main(int argc, char *argv[]){
 int th_1;
 int th_2;
 
 pthread_t thread_1;
 pthread_t thread_2;

 sem_t res_ecran;
 sem_init(&res;_ecran,0,1);

 void *afficher_phrase1(void *arg){
  sem_wait(&res;_ecran);
  int i;
  char *p;
  p = (char *) arg;
  for(i=0;i<35;i++){
   printf(">>THREAD#1 : %c \n",p[i]); 
  }
  sem_post(&res;_ecran);
  pthread_exit(0);
 }

 void *afficher_phrase2(void *arg){
  sem_wait(&res;_ecran);
  int i;
  char *p;
  p = (char *) arg;
  for(i=0;i<35;i++){
   printf(">>THREAD#2 : %c \n",p[i]); 
  }
  sem_post(&res;_ecran);
  pthread_exit(0);
 }

 char phrase_1[]="Realisation de test sur les threads";
 char phrase_2[]="Espere que cela va bien fonctionner";

 printf(">>MAIN>>Creation thread #1.\n");
 th_1=pthread_create(&thread;_1,NULL,afficher_phrase1,(void *) phrase_1);
 printf(">>MAIN>>Creation thread #2.\n");
 th_2=pthread_create(&thread;_2,NULL,afficher_phrase2,(void *) phrase_2);

 if(th_1)
  printf("Erreur creation thread#1.\n");
 
 if(th_2)
  printf("Erreur creation thread#2.\n");

 return EXIT_SUCCESS;
}