X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/5c31366609199a57339e472af71dbdd30c4fd60e..407a83cbc983ae0d5773c1a418b1c4e580caa37a:/src/include/xbt/xbt_portability.h

diff --git a/src/include/xbt/xbt_portability.h b/src/include/xbt/xbt_portability.h
index 4159e02646..be1589292f 100644
--- a/src/include/xbt/xbt_portability.h
+++ b/src/include/xbt/xbt_portability.h
@@ -1,3 +1,27 @@
+/* $Id$ */
+/*  xbt/xbt_portability.h -- all system dependency                          */
+/* Private portability layer                                                */
 
+/* Copyright (c) 2004,2005 Martin Quinson. All rights reserved.             */
 
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#ifndef _XBT_PORTABILITY_H
+#define _XBT_PORTABILITY_H
+
+/** @brief get time in seconds 
+
+  * gives  the  number  of  seconds since the Epoch (00:00:00 UTC, January 1, 1970).
+  * Most users should use gras_os_time and should not use this function unless 
+    they really know what they are doing. */
 double xbt_os_time(void);
+
+typedef struct s_xbt_os_timer *xbt_os_timer_t;
+xbt_os_timer_t xbt_os_timer_new(void);
+void xbt_os_timer_free(xbt_os_timer_t timer);
+void xbt_os_timer_start(xbt_os_timer_t timer);
+void xbt_os_timer_stop(xbt_os_timer_t timer);
+double xbt_os_timer_elapsed(xbt_os_timer_t timer);
+
+#endif