--- rpl/src/instructions_r4.c	2011/09/14 17:55:59	1.41
+++ rpl/src/instructions_r4.c	2011/09/20 09:51:42	1.43
@@ -2048,8 +2048,7 @@ instruction_read(struct_processus *s_eta
 					return;
 				}
 
-				if (pthread_mutex_unlock(&((*s_etat_processus).mutex_fork))
-						!= 0)
+				if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
 				{
 					(*s_etat_processus).erreur_systeme = d_es_processus;
 					return;
@@ -2109,8 +2108,8 @@ instruction_read(struct_processus *s_eta
 						free(tampon_lecture);
 						liberation(s_etat_processus, s_objet_argument_1);
 
-						while(pthread_mutex_lock(&((*s_etat_processus)
-								.mutex_fork)) != 0)
+						while(sem_wait(&((*s_etat_processus)
+								.semaphore_fork)) != 0)
 						{
 							(*s_etat_processus).erreur_systeme =
 									d_es_processus;
@@ -2137,10 +2136,13 @@ instruction_read(struct_processus *s_eta
 					}
 				}
 
-				if (pthread_mutex_lock(&((*s_etat_processus).mutex_fork)) != 0)
+				while(sem_wait(&((*s_etat_processus).semaphore_fork)) != 0)
 				{
-					(*s_etat_processus).erreur_systeme = d_es_processus;
-					return;
+					if (errno = EINTR)
+					{
+						(*s_etat_processus).erreur_systeme = d_es_processus;
+						return;
+					}
 				}
 
 				if ((*s_etat_processus).var_volatile_requete_arret == -1)
@@ -2536,8 +2538,7 @@ instruction_read(struct_processus *s_eta
 					return;
 				}
 
-				if (pthread_mutex_unlock(&((*s_etat_processus).mutex_fork))
-						!= 0)
+				if (sem_post(&((*s_etat_processus).semaphore_fork)) != 0)
 				{
 					(*s_etat_processus).erreur_systeme = d_es_processus;
 					return;
@@ -2596,12 +2597,15 @@ instruction_read(struct_processus *s_eta
 						free(tampon_lecture);
 						liberation(s_etat_processus, s_objet_argument_1);
 
-						if (pthread_mutex_lock(&((*s_etat_processus)
-								.mutex_fork)) != 0)
+						while(sem_wait(&((*s_etat_processus)
+								.semaphore_fork)) != 0)
 						{
-							(*s_etat_processus).erreur_systeme =
-									d_es_processus;
-							return;
+							if (errno != EINTR)
+							{
+								(*s_etat_processus).erreur_systeme =
+										d_es_processus;
+								return;
+							}
 						}
 
 						(*s_etat_processus).erreur_execution =
@@ -2623,11 +2627,13 @@ instruction_read(struct_processus *s_eta
 					}
 				}
 
-				if (pthread_mutex_lock(&((*s_etat_processus).mutex_fork))
-						!= 0)
+				while(sem_wait(&((*s_etat_processus).semaphore_fork)) != 0)
 				{
-					(*s_etat_processus).erreur_systeme = d_es_processus;
-					return;
+					if (errno != EINTR)
+					{
+						(*s_etat_processus).erreur_systeme = d_es_processus;
+						return;
+					}
 				}
 
 				if ((*s_etat_processus).var_volatile_requete_arret == -1)