#include 
#include 
std
::
uint64_t
GetTickCount64
(
void
)
{
timespec ts
;
clock_gettime
(
CLOCK_MONOTONIC
,
&
ts
)
;
return
(
std
::
uint64_t
)
ts
.
tv_sec
*
1000
+
(
std
::
uint64_t
)
ts
.
tv_nsec
/
1000000
;
}