diff --git a/lib/communication.c b/lib/communication.c
index 6abd9f2..a25de14 100644
--- a/lib/communication.c
+++ b/lib/communication.c
@@ -24,16 +24,17 @@ int file_open (FILE **f, const char *path, const char *mode)
 int file_close (FILE *f)
 {
     if (f != 0) {
-        printf ("before fclosing\n");
         if (fclose (f)) {
             return ER_FILE_CLOSE;
         }
-        printf ("after fclosing\n");
+        printf ("FILE_CLOSE: closed file\n");
     }
     return 0;
 }
 
 int file_read (FILE *f, char **buf, size_t *msize) {
+    size_t n =0;
+
     if (*msize == 0) {
         *msize = BUFSIZ; // default value
     }
@@ -41,18 +42,28 @@ int file_read (FILE *f, char **buf, size_t *msize) {
     if (*buf == NULL) {
         *buf = malloc (*msize);
         if (*buf == NULL) {
-            fprintf (stderr, "err can't allocate enough memory (%ld)\n", *msize);
+            fprintf (stderr, "FILE_READ: err can't allocate enough memory (%ld)\n", *msize);
             int ret = file_close (f);
             if (ret != 0)
                 return ret;
         }
     }
 
-    *msize = fread (*buf, *msize, 1, f);
+    //*msize = fread (*buf, *msize, 1, f);
+    // if (*msize == 0) {
+    //     fprintf (stderr, "FILE_READ: err can't read a file\n");
+    //     if (ER_FILE_CLOSE == file_close (f)) {
+    //         fprintf (stderr, "FILE_READ: err closing the file\n");
+    //         return ER_FILE_CLOSE;
+    //     }
+    //     return ER_FILE_READ;
+    // }
+
+    *msize = getline (buf, &n, f);
     if (*msize == 0) {
-        fprintf (stderr, "err can't read a file\n");
+        fprintf (stderr, "FILE_READ: err can't read a file\n");
         if (ER_FILE_CLOSE == file_close (f)) {
-            fprintf (stderr, "err closing the file\n");
+            fprintf (stderr, "FILE_READ: err closing the file\n");
             return ER_FILE_CLOSE;
         }
         return ER_FILE_READ;
@@ -243,9 +254,10 @@ int srv_get_new_process (const struct service *srv, struct process *p)
         }
     }
 
+    // printf("pid = %d, index = %d, version = %d \n",pid, index, version );
     srv_process_gen (p, pid, index, version);
 
-    return 0;
+    return 1;
 }
 
 int srv_read_cb (struct process *p, char ** buf, size_t * msize
diff --git a/pingpong/pingpong.c b/pingpong/pingpong.c
index 5d3f4fb..cb5a86a 100644
--- a/pingpong/pingpong.c
+++ b/pingpong/pingpong.c
@@ -18,18 +18,20 @@ void main_loop (const struct service *srv)
     int cnt = 10;
 
     while (cnt--) {
+
         // -1 : error, 0 = no new process, 1 = new process
         ret = srv_get_new_process (srv, &proc);
+        //printf("ret = %d\n", ret);
+
         if (ret == -1) {
-            fprintf (stderr, "error service_get_new_process\n");
+            fprintf (stderr, "MAIN_LOOP: error service_get_new_process\n");
             continue;
         } else if (ret == 0) { // that should not happen
             continue;
         }
 
-        // printf ("before print\n");
         srv_process_print (&proc);
-        // printf ("after print\n");
+        //printf ("after print\n");
 
         // about the message
         size_t msize = BUFSIZ;
@@ -37,7 +39,7 @@ void main_loop (const struct service *srv)
 
         // printf ("before read\n");
         if ((ret = srv_read (&proc, &buf, &msize))) {
-            fprintf(stdout, "error service_read %d\n", ret);
+            fprintf(stdout, "MAIN_LOOP: error service_read %d\n", ret);
             continue;
         }
         // printf ("after read\n");
@@ -45,11 +47,11 @@ void main_loop (const struct service *srv)
 
         // printf ("before proc write\n");
         if ((ret = srv_write (&proc, buf, msize))) {
-            fprintf(stdout, "error service_write %d\n", ret);
+            fprintf(stdout, "MAIN_LOOP: error service_write %d\n", ret);
             continue;
         }
         // printf ("after proc write\n");
-        printf ("\033[32mStill \033[31m%d\033[32m applications to serve\n",cnt);
+        printf ("%d applications to serve\n",cnt);
     }
 }
 
diff --git a/pingpong/pingpong.sh b/pingpong/pingpong.sh
index 88a38e5..bbb0250 100755
--- a/pingpong/pingpong.sh
+++ b/pingpong/pingpong.sh
@@ -22,15 +22,18 @@ fi
 
 for pid in `seq 1 ${NB}`
 do
+    echo "${pid}"
+
     # we make the application pipes
-    mkfifo ${REP}/${pid}-1-in 2>/dev/null
-    mkfifo ${REP}/${pid}-1-out 2>/dev/null
+    mkfifo ${REP}${pid}-1-in 2>/dev/null
+    mkfifo ${REP}${pid}-1-out 2>/dev/null
 
     # pid index version
-    echo "${pid} 1 1" > ${REP}/${SERVICE}
+    echo "${pid} 1 5" > ${REP}${SERVICE}
 
     # the purpose is to send something in the pipe
-    cat /dev/urandom | base64 | head -n 1 > ${REP}/${pid}-1-out
+    cat /dev/urandom | base64 | head -n 1 > ${REP}${pid}-1-out
+    # echo "hello world" > ${REP}${pid}-1-out
 
     # the the service will answer with our message
     cat ${REP}/${pid}-1-in