diff --git a/core-test/app/array_proc.c b/core-test/app/array_proc.c
index 3e1e51e..0d64685 100644
--- a/core-test/app/array_proc.c
+++ b/core-test/app/array_proc.c
@@ -2,30 +2,33 @@
 #include <string.h> /* memset */
 #include <stdio.h>
 
-int main() {
-	int ret;
-	struct array_proc tab_proc;
-	memset(&tab_proc, 0, sizeof(struct array_proc));
+int main()
+{
+    int ret;
+    struct array_proc tab_proc;
+    memset(&tab_proc, 0, sizeof(struct array_proc));
 
-	struct process process_tab[5];
-	memset(&process_tab, 0, sizeof(struct process) * 5);
+    struct process process_tab[5];
+    memset(&process_tab, 0, sizeof(struct process) * 5);
 
-	int i;
-	for (i = 0; i < 5; i++) {
-		process_tab[i].proc_fd = i;
-		ret = add_proc(&tab_proc, &process_tab[i]);
-		if (ret == -1) {
-			printf("erreur realloc\n");
-		}
-	}
+    int i;
+    for (i = 0; i < 5; i++) {
+        process_tab[i].proc_fd = i;
+        ret = add_proc(&tab_proc, &process_tab[i]);
+        if (ret == -1) {
+            printf("erreur realloc\n");
+        }
+    }
 
-	array_proc_print(&tab_proc);
+    array_proc_print(&tab_proc);
 
-	ret = del_proc(&tab_proc, &process_tab[2]);
-	if(ret < 0) {
-		printf("erreur %d\n", ret );
-	}
-	array_proc_print(&tab_proc);
+    ret = del_proc(&tab_proc, &process_tab[2]);
+    if(ret < 0) {
+        printf("erreur %d\n", ret );
+    }
+    array_proc_print(&tab_proc);
 
-	return 0;
-}
\ No newline at end of file
+    array_proc_free (&tab_proc);
+
+    return 0;
+}
diff --git a/core/communication.c b/core/communication.c
index 7f384b1..b754b1f 100644
--- a/core/communication.c
+++ b/core/communication.c
@@ -151,12 +151,22 @@ int app_write (struct service *srv, const struct msg *m)
 }
 
 
-/*prendre en parametre un tableau de process.
-* trouver le processus/service actif et renvoyer CONNECTION/APPLICATION 
-* si un processus il va etre placer dans proc
-* si un service il va etre placer dans service.
-*/
-int srv_select(struct array_proc *ap, struct service *srv, struct process **proc) {
+/*
+ * srv_select prend en parametre
+ *  * un tableau de process qu'on écoute
+ *  * le service qui attend de nouvelles connexions
+ *  * un tableau de process qui souhaitent parler
+ *
+ * la fonction trouve le processus/service actif et renvoie 
+ * un entier correspondant à quel descripteur de fichier il faut lire
+ *  * celui du serveur = nouvelle connexion entrante        (CONNECTION)
+ *  * celui d'un ou plusieurs processus = ils nous parlent  (APPLICATION)
+ *  * les deux à la fois                                    (CON_APP)
+ */
+
+int srv_select (struct array_proc *ap, struct service *srv
+        , struct process **proc)
+{
     int i, j;
     /* master file descriptor list */
     fd_set master;
@@ -182,10 +192,9 @@ int srv_select(struct array_proc *ap, struct service *srv, struct process **proc
 
     while (1) {
         readf = master;
-        if(select(fdmax+1, &readf, NULL, NULL, NULL) == -1)
-        {
-            perror("Server-select() error lol!");
-            exit(1);
+        if(select(fdmax+1, &readf, NULL, NULL, NULL) == -1) {
+            perror("select");
+            return -1;
         }
 
         /*run through the existing connections looking for data to be read*/
@@ -193,7 +202,7 @@ int srv_select(struct array_proc *ap, struct service *srv, struct process **proc
             if (FD_ISSET(i, &readf)) {
                 if (i == listener) {
                     return CONNECTION;
-                }else {
+                } else {
                     for(j = 0; j < ap->size; j++) {
                         if(i == ap->tab_proc[j]->proc_fd ) {
                             *proc = ap->tab_proc[j];
@@ -207,9 +216,12 @@ int srv_select(struct array_proc *ap, struct service *srv, struct process **proc
 } 
 
 /*calculer le max filedescriptor*/
-int getMaxFd(struct array_proc *ap) {
+int getMaxFd(struct array_proc *ap)
+{
+
     int i;
     int max = 0;
+
     for (i = 0; i < ap->size; i++ ) {
         if (ap->tab_proc[i]->proc_fd > max) {
             max = ap->tab_proc[i]->proc_fd;
diff --git a/core/msg.c b/core/msg.c
index 5d82d01..f5d1586 100644
--- a/core/msg.c
+++ b/core/msg.c
@@ -86,9 +86,6 @@ int msg_read (int fd, struct msg *m)
     }
     free (buf);
 
-    // printf ("msg received: ");
-    // print_msg (m);
-
     return 0;
 }
 
@@ -96,14 +93,10 @@ int msg_write (int fd, const struct msg *m)
 {
     assert (m != NULL);
 
-    // printf ("msg to write: ");
-    // print_msg (m);
-
     char *buf = NULL;
     size_t msize = 0;
     msg_format_write (m, &buf, &msize);
 
-    // printf ("msg to send, real size %ld\n", msize);
     int ret = usock_send (fd, buf, msize);
     if (ret < 0) {
         handle_err ("msg_write", "usock_send");
diff --git a/core/msg.h b/core/msg.h
index da809e0..c2c904b 100644
--- a/core/msg.h
+++ b/core/msg.h
@@ -13,7 +13,7 @@
 
 struct msg {
     char type;
-    short valsize;
+    unsigned short valsize;
     char *val;
 };
 
diff --git a/core/process.c b/core/process.c
index 68c8843..507a3ac 100644
--- a/core/process.c
+++ b/core/process.c
@@ -33,11 +33,14 @@ void srv_process_gen (struct process *p
 
 #endif
 
-int add_proc(struct array_proc *aproc, struct process *p) {
+int add_proc (struct array_proc *aproc, struct process *p)
+{
     assert(aproc != NULL);
     assert(p != NULL);
     aproc->size++;
-    aproc->tab_proc = realloc(aproc->tab_proc, sizeof(struct process) * aproc->size);
+    aproc->tab_proc = realloc(aproc->tab_proc
+            , sizeof(struct process) * aproc->size);
+
     if (aproc->tab_proc == NULL) {
         return -1;
     }
@@ -46,16 +49,20 @@ int add_proc(struct array_proc *aproc, struct process *p) {
     return 0;
 }
 
-int del_proc(struct array_proc *aproc, struct process *p) {
+int del_proc (struct array_proc *aproc, struct process *p)
+{
     assert(aproc != NULL);
     assert(p != NULL);
 
     int i;
     for (i = 0; i < aproc->size; i++) {
         if (aproc->tab_proc[i] == p) {
+
             aproc->tab_proc[i] = aproc->tab_proc[aproc->size-1];
             aproc->size--;
-            aproc->tab_proc = realloc(aproc->tab_proc, sizeof(struct process) * aproc->size);
+            aproc->tab_proc = realloc(aproc->tab_proc
+                    , sizeof(struct process) * aproc->size);
+
             if (aproc->tab_proc == NULL) {
                 return -1;
             }
@@ -69,10 +76,12 @@ int del_proc(struct array_proc *aproc, struct process *p) {
 void process_print (struct process *p)
 {
     if (p != NULL)
-        printf ("process %d : index %d, version %d\n", p->proc_fd, p->index, p->version);
+        printf ("process %d : index %d, version %d\n"
+                , p->proc_fd, p->index, p->version);
 }
 
-void array_proc_print( struct array_proc *ap) {
+void array_proc_print (struct array_proc *ap)
+{
     int i;
     for (i = 0; i < ap->size; i++) {
         printf("%d : ", i);
@@ -80,4 +89,8 @@ void array_proc_print( struct array_proc *ap) {
     }
 }
 
-
+void array_proc_free (struct array_proc *ap)
+{
+    if (ap->tab_proc != NULL)
+        free (ap->tab_proc), ap->tab_proc = NULL;
+}
diff --git a/core/process.h b/core/process.h
index 7c36bbe..f6ed0fe 100644
--- a/core/process.h
+++ b/core/process.h
@@ -18,7 +18,8 @@ int add_proc(struct array_proc *, struct process *);
 
 int del_proc(struct array_proc *, struct process *);
 
-void array_proc_print(struct array_proc *);
+void array_proc_print (struct array_proc *);
+void array_proc_free (struct array_proc *);
 
 #if 0