git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@1200
48e7efb5-ca39-0410-a469-
dd3cf9ba447f
+/** @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);
+
END_DECL()
#endif /* _XBT_SYSDEP_H */
END_DECL()
#endif /* _XBT_SYSDEP_H */
-/* sysdep.h -- all system dependency */
+/* sysdep.c -- all system dependency */
/* no system header should be loaded out of this file so that we have only */
/* one file to check when porting to another OS */
/* no system header should be loaded out of this file so that we have only */
/* one file to check when porting to another OS */
#include "xbt/sysdep.h"
#include "xbt/log.h"
#include "xbt/error.h"
#include "xbt/sysdep.h"
#include "xbt/log.h"
#include "xbt/error.h"
/* \defgroup XBT_sysdep All system dependency
* \brief This section describes many macros/functions that can serve as
* an OS abstraction.
*/
/* \defgroup XBT_sysdep All system dependency
* \brief This section describes many macros/functions that can serve as
* an OS abstraction.
*/
+double xbt_os_time(void) {
+#ifdef HAVE_GETTIMEOFDAY
+ struct timeval tv;
+
+ gettimeofday(&tv, NULL);
+
+ return (double)(tv.tv_sec + tv.tv_usec / 1000000.0);
+#else
+ /* Poor resolution */
+ return (double)(time(NULL));
+#endif /* HAVE_GETTIMEOFDAY? */
+}
+
+
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sysdep, xbt, "System dependency");
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sysdep, xbt, "System dependency");