From ea761e3b3e598ed82b23dd8503c2f693c8b461a3 Mon Sep 17 00:00:00 2001
From: Arnaud Giersch <arnaud.giersch@iut-bm.univ-fcomte.fr>
Date: Thu, 3 Nov 2011 15:25:00 +0100
Subject: [PATCH 1/1] Fix warnings about clobbered variables in gras/ping
 example.

---
 examples/gras/ping/ping_client.c | 33 +++++++++++++++++---------------
 1 file changed, 18 insertions(+), 15 deletions(-)

diff --git a/examples/gras/ping/ping_client.c b/examples/gras/ping/ping_client.c
index e362b44bd0..d9aab2cb42 100644
--- a/examples/gras/ping/ping_client.c
+++ b/examples/gras/ping/ping_client.c
@@ -9,11 +9,25 @@
 #include "ping.h"
 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(Ping);
 
-int client(int argc, char *argv[])
+static gras_socket_t try_gras_socket_client(const char *host, int port)
 {
+  volatile gras_socket_t sock = NULL;
   xbt_ex_t e;
+  TRY {
+    sock = gras_socket_client(host, port);
+  }
+  CATCH(e) {
+    if (e.category != system_error)
+      /* dunno what happened, let the exception go through */
+      RETHROWF("Unable to connect to the server: %s");
+    xbt_ex_free(e);
+  }
+  return sock;
+}
+
+int client(int argc, char *argv[])
+{
   gras_socket_t toserver = NULL;        /* peer */
-  int connected = 0;
 
   gras_socket_t from;
   int ping, pong;
@@ -33,19 +47,8 @@ int client(int argc, char *argv[])
   XBT_INFO("Launch client (server on %s:%d)", host, port);
 
   /* 3. Create a socket to speak to the server */
-  while (!connected) {
-    TRY {
-      toserver = gras_socket_client(host, port);
-      connected = 1;
-    }
-    CATCH(e) {
-      if (e.category != system_error)
-        /* dunno what happened, let the exception go through */
-        RETHROWF("Unable to connect to the server: %s");
-      xbt_ex_free(e);
-      gras_os_sleep(0.05);
-    }
-  }
+  while (!(toserver = try_gras_socket_client(host, port)))
+    gras_os_sleep(0.05);
 
   XBT_INFO("Connected to %s:%d.", host, port);
 
-- 
2.20.1