From c3be7dc6fa5ad6632e6f638ed704340cb86ae2aa Mon Sep 17 00:00:00 2001
From: mquinson <mquinson@48e7efb5-ca39-0410-a469-dd3cf9ba447f>
Date: Tue, 4 Jul 2006 13:35:50 +0000
Subject: [PATCH] When a GRAS process receives the SIGUSR1 signal, it displays
 its current backtrace. Another neat stuff for debugging

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@2470 48e7efb5-ca39-0410-a469-dd3cf9ba447f
---
 src/gras/gras.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/gras/gras.c b/src/gras/gras.c
index 35b79801e1..576f2d70a1 100644
--- a/src/gras/gras.c
+++ b/src/gras/gras.c
@@ -17,11 +17,18 @@
 #include "gras.h"
 #include "gras/process.h" /* FIXME: killme and put process_init in modinter */
 
-#include "portable.h" /* hexa_*() */
+#include "portable.h" /* hexa_*(); signalling stuff */
 
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras,XBT_LOG_ROOT_CAT,"All GRAS categories (cf. section \ref GRAS_API)");
 static int gras_running_process = 0;
 
+#if defined(HAVE_SIGNAL) && defined(HAVE_SIGNAL_H)
+static void gras_sigusr_handler(int sig) {
+   INFO0("SIGUSR1 received. Display the backtrace");
+   xbt_backtrace_display();
+}
+#endif
+
 void gras_init(int *argc,char **argv) {
 
   VERB0("Initialize GRAS");
@@ -50,6 +57,9 @@ void gras_init(int *argc,char **argv) {
     gras_msg_init();
     gras_trp_init();
     gras_datadesc_init();
+#if defined(HAVE_SIGNAL) && defined(HAVE_SIGNAL_H)
+    signal(SIGUSR1,gras_sigusr_handler);
+#endif     
   }
 }
 
-- 
2.20.1