/* time - time related syscal wrappers */
-/* Copyright (c) 2004 Martin Quinson. All rights reserved. */
+/* Copyright (c) 2003, 2004 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. */
+#include <math.h> /* floor */
+
+#include "portable.h"
+
#include "xbt/sysdep.h"
+#include "xbt/log.h"
#include "gras/virtu.h"
-#include <sys/time.h> /* gettimeofday() */
+#include "xbt/xbt_portability.h" /* private */
-double gras_os_time() {
- struct timeval tv;
+XBT_LOG_EXTERNAL_CATEGORY(virtu);
+XBT_LOG_DEFAULT_CATEGORY(virtu);
- gettimeofday(&tv, NULL);
-
- return (double)(tv.tv_sec * 1000000 + tv.tv_usec);
+double gras_os_time() {
+ return xbt_os_time();
}
-void gras_os_sleep(unsigned long sec,unsigned long usec) {
- sleep(sec);
- if (usec/1000000) sleep(usec/1000000);
-
+void gras_os_sleep(double sec) {
#ifdef HAVE_USLEEP
- (void)usleep(usec % 1000000);
-#endif /* ! HAVE_USLEEP */
+ DEBUG1("Do sleep %f sec", sec);
+ sleep(sec);
+ (void)usleep( (sec - floor(sec)) * 1000000);
+
+#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
}
+
