Add support for POSIX_FADV_STREAMID

[fio.git] / time.c

diff --git a/time.c b/time.c
index f3de3e71bd39ab52b8d625812751c8e9ce106c23..f1833c7b9ea42d368c06eda180528d68db8e3c2c 100644 (file)
--- a/time.c
+++ b/time.c
@@ -9,25 +9,29 @@ static unsigned long ns_granularity;
 /*
  * busy looping version for the last few usec
  */
-void usec_spin(unsigned int usec)
+uint64_t usec_spin(unsigned int usec)
 {
        struct timeval start;
+       uint64_t t;
 
        fio_gettime(&start, NULL);
-       while (utime_since_now(&start) < usec)
+       while ((t = utime_since_now(&start)) < usec)
                nop;
+
+       return t;
 }
 
-void usec_sleep(struct thread_data *td, unsigned long usec)
+uint64_t usec_sleep(struct thread_data *td, unsigned long usec)
 {
        struct timespec req;
        struct timeval tv;
+       uint64_t t = 0;
 
        do {
                unsigned long ts = usec;
 
                if (usec < ns_granularity) {
-                       usec_spin(usec);
+                       t += usec_spin(usec);
                        break;
                }
 
@@ -46,11 +50,19 @@ void usec_sleep(struct thread_data *td, unsigned long usec)
                        break;
 
                ts = utime_since_now(&tv);
+               t += ts;
                if (ts >= usec)
                        break;
 
                usec -= ts;
        } while (!td->terminate);
+
+       return t;
+}
+
+uint64_t time_since_genesis(void)
+{
+       return time_since_now(&genesis);
 }
 
 uint64_t mtime_since_genesis(void)