X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/fd950e3c32576276db6406a6af962e5ef72b7327..548c6b2142ac766395e10567352c3887a1b897a0:/src/gras/Transport/rl_transport.c

diff --git a/src/gras/Transport/rl_transport.c b/src/gras/Transport/rl_transport.c
index 68d01bb6c4..e9eba7e285 100644
--- a/src/gras/Transport/rl_transport.c
+++ b/src/gras/Transport/rl_transport.c
@@ -70,8 +70,10 @@ gras_trp_select(double timeout,
 
     /* construct the set of socket to ear from */
     FD_ZERO(&FDS);
+    max_fds = -1;
     xbt_dynar_foreach(sockets,cursor,sock_iter) {
       if (sock_iter->incoming) {
+	DEBUG1("Considering socket %d for select",sock_iter->sd);
 #ifndef HAVE_WINSOCK_H
 	if (max_fds < sock_iter->sd)
 	  max_fds = sock_iter->sd;
@@ -82,6 +84,17 @@ gras_trp_select(double timeout,
       }
     }
 
+    if (max_fds == -1) {
+       if (timeout > 0) {
+	  DEBUG0("No socket to select onto. Sleep instead.");
+	  gras_os_sleep(timeout,0);
+	  return timeout_error;
+       } else {
+	  DEBUG0("No socket to select onto. Return directly.");
+	  return timeout_error;
+       }
+    }
+
 #ifndef HAVE_WINSOCK_H
     /* we cannot have more than FD_SETSIZE sockets 
        ... but with WINSOCK which returns sockets higher than the limit (killing this optim) */
@@ -110,7 +123,7 @@ gras_trp_select(double timeout,
       /* no timeout: good luck! */
       p_tout = NULL;
     }
-
+     
     DEBUG1("Selecting over %d socket(s)", max_fds-1);
     ready = select(max_fds, &FDS, NULL, NULL, p_tout);
     if (ready == -1) {