From: mquinson <mquinson@48e7efb5-ca39-0410-a469-dd3cf9ba447f>
Date: Mon, 27 Jun 2005 22:11:12 +0000 (+0000)
Subject: Use select to sleep portably on weird platforms
X-Git-Tag: v3.3~3927
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/b98e7805e2b634992db0d8301ec0e13cf66b3c71?ds=inline

Use select to sleep portably on weird platforms


git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@1428 48e7efb5-ca39-0410-a469-dd3cf9ba447f
---

diff --git a/src/gras/Virtu/rl_time.c b/src/gras/Virtu/rl_time.c
index b7e6292dfc..49024d44e5 100644
--- a/src/gras/Virtu/rl_time.c
+++ b/src/gras/Virtu/rl_time.c
@@ -23,15 +23,20 @@ double gras_os_time() {
 }
  
 void gras_os_sleep(double sec) {
-  DEBUG1("Do sleep %d sec", (int)sec);
-  sleep(sec);
-
 #ifdef HAVE_USLEEP
-  DEBUG1("Do sleep %d usec", (int) ((sec - floor(sec)) * 1000000 ));
+  DEBUG1("Do sleep %f sec", sec);
+  sleep(sec);
   (void)usleep( (sec - floor(sec)) * 1000000);
-#else
-  if ( ((int) sec) == 0) {
-     WARN0("This platform does not implement usleep. Cannot sleep less than one second");
-  }
-#endif /* ! HAVE_USLEEP */
+        
+#else /* don't have usleep. Use select to sleep less than one second */
+  struct timeval timeout;
+
+  DEBUG1("Do sleep %f sec", sec);
+  
+  timeout.tv_sec =  (unsigned long)(sec);
+  timeout.tv_usec = (sec - floor(sec)) * 1000000;
+              
+  select(0, NULL, NULL, NULL, &timeout);
+#endif
 }
+