X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/9d2a6b99f1209bc178f050c8973143e591a4727a..d177472fea36c2a8f780637477591025663d30a4:/src/gras/Msg/gras_msg_listener.c

diff --git a/src/gras/Msg/gras_msg_listener.c b/src/gras/Msg/gras_msg_listener.c
index 028dffecf6..94d7863e4b 100644
--- a/src/gras/Msg/gras_msg_listener.c
+++ b/src/gras/Msg/gras_msg_listener.c
@@ -8,46 +8,79 @@
  * under the terms of the license (GNU LGPL) which comes with this package. */
 
 #include "gras/Msg/msg_private.h"
+#include "gras/Transport/transport_private.h"
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_msg_read,gras_msg,"Message reader thread");
 
 #include "xbt/ex.h"
 #include "xbt/queue.h"
 #include "xbt/synchro.h"
 
-//#include "gras/Virtu/virtu_interface.h"
-//#include "gras/DataDesc/datadesc_interface.h"
 #include "gras/Transport/transport_interface.h" /* gras_select */
-//#include "portable.h" /* execinfo when available to propagate exceptions */
-
 
 typedef struct s_gras_msg_listener_ {
   xbt_queue_t incomming_messages;
+  gras_socket_t wakeup_sock_listener_side;
+  gras_socket_t wakeup_sock_master_side;
   xbt_thread_t listener;
 } s_gras_msg_listener_t;
 
 static void listener_function(void *p) {
   gras_msg_listener_t me = (gras_msg_listener_t)p;
   s_gras_msg_t msg;
-
+  gras_msgtype_t msg_wakeup_listener_t = gras_msgtype_by_name("_wakeup_listener");
+  DEBUG0("I'm the listener");
   while (1) {
+    DEBUG0("Selecting");
     msg.expe = gras_trp_select(-1);
+    DEBUG0("Select returned something");
     gras_msg_recv(msg.expe, &msg);
-    xbt_queue_push(me->incomming_messages, &msg);
+    if (msg.type!=msg_wakeup_listener_t)
+    	xbt_queue_push(me->incomming_messages, &msg);
+    else  {
+    	DEBUG0("Asked to get awake");
+    }
   }
 }
 
 gras_msg_listener_t
 gras_msg_listener_launch(xbt_queue_t msg_exchange){
   gras_msg_listener_t arg = xbt_new0(s_gras_msg_listener_t,1);
+  int my_port;
 
+  DEBUG0("Launch listener");
   arg->incomming_messages = msg_exchange;
 
-  arg->listener =  xbt_thread_create(listener_function,&arg);
+  /* get a free socket for the receiving part of the listener, taking care that it does not get saved as "myport" number */
+  my_port = ((gras_trp_procdata_t) gras_libdata_by_id(gras_trp_libdata_id))->myport;
+  arg->wakeup_sock_listener_side=gras_socket_server_range(5000,6000,-1,0);
+  ((gras_trp_procdata_t) gras_libdata_by_id(gras_trp_libdata_id))->myport = my_port;
+  /* Connect the other part of the socket */
+  arg->wakeup_sock_master_side=gras_socket_client(gras_os_myname(),gras_socket_my_port(arg->wakeup_sock_listener_side));
+
+  /* declare the message used to awake the listener from the master */
+  gras_msgtype_declare("_wakeup_listener",gras_datadesc_by_name("char"));
+
+  /* actually start the thread */
+  arg->listener =  xbt_thread_create("listener",listener_function,arg);
+  gras_os_sleep(0); /* TODO: useless? give the listener a chance to initialize even if the main is empty and we cancel it right afterward */
   return arg;
 }
 
 void gras_msg_listener_shutdown(gras_msg_listener_t l) {
+  DEBUG0("Listener quit");
   xbt_thread_cancel(l->listener);
   xbt_queue_free(&l->incomming_messages);
   xbt_free(l);
 }
+
+#include "gras/Virtu/virtu_private.h" /* procdata_t content */
+void gras_msg_listener_awake(){
+	gras_procdata_t *pd;
+	char c = '1';
+
+	DEBUG0("Awaking the listener");
+	pd = gras_procdata_get();
+	if (pd->listener) {
+		gras_msg_send(pd->listener->wakeup_sock_master_side,"_wakeup_listener",&c);
+	}
+}