gettime: improve gettimeofday() offload support

[fio.git] / gettime.h

diff --git a/gettime.h b/gettime.h
index 309ef2108a646e764b9e3e120cfecd7d8e9cf802..f5412286e3bad41dd32111f8885d647af20fad75 100644 (file)
--- a/gettime.h
+++ b/gettime.h
@@ -1,6 +1,8 @@
 #ifndef FIO_GETTIME_H
 #define FIO_GETTIME_H
 
+#include "arch/arch.h"
+
 /*
  * Clock sources
  */
@@ -8,13 +10,32 @@ enum fio_cs {
        CS_GTOD         = 1,
        CS_CGETTIME,
        CS_CPUCLOCK,
+       CS_INVAL,
 };
 
 extern void fio_gettime(struct timeval *, void *);
 extern void fio_gtod_init(void);
 extern void fio_clock_init(void);
 extern int fio_start_gtod_thread(void);
+extern int fio_monotonic_clocktest(void);
+extern void fio_local_clock_init(int);
 
 extern struct timeval *fio_tv;
 
+static inline int fio_gettime_offload(struct timeval *tv)
+{
+       size_t last_sec;
+
+       if (!fio_tv)
+               return 0;
+
+       do {
+               read_barrier();
+               last_sec = tv->tv_sec = fio_tv->tv_sec;
+               tv->tv_usec = fio_tv->tv_usec;
+       } while (fio_tv->tv_sec != last_sec);
+
+       return 1;
+}
+
 #endif