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Elphel
kicad-source-mirror
Commits
5a9fcf6f
Commit
5a9fcf6f
authored
Jan 13, 2012
by
Dick Hollenbeck
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fix windows version of GetRunningMicroSecs()
parent
3421863c
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-10
getrunningmicrosecs.cpp
common/getrunningmicrosecs.cpp
+21
-10
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common/getrunningmicrosecs.cpp
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5a9fcf6f
...
...
@@ -40,23 +40,34 @@ unsigned GetRunningMicroSecs()
unsigned
GetRunningMicroSecs
()
{
LARGE_INTEGER
curtime
;
FILETIME
now
;
static
unsigned
timerFreq
;
// timer frequency
GetSystemTimeAsFileTime
(
&
now
);
if
(
!
timerFreq
)
{
QueryPerformanceFrequency
(
&
curtime
);
typedef
unsigned
long
long
UINT64
;
timerFreq
=
curtime
.
QuadPart
/
1000000
;
// i.e., ticks per usec
UINT64
t
=
(
UINT64
(
now
.
dwHighDateTime
)
<<
32
)
+
now
.
dwLowDateTime
;
assert
(
timerFreq
);
}
t
/=
10
;
QueryPerformanceCounter
(
&
curtime
);
return
unsigned
(
t
);
}
#if 0
// test program
#include <stdio.h>
int main( int argc, char** argv )
{
unsigned then = GetRunningMicroSecs();
return
(
curtime
.
LowPart
/
timerFreq
);
Sleep( 2000 ); // Windows Sleep( msecs )
printf( "delta: %u\n", GetRunningMicroSecs() - then );
return 0;
}
#endif
#endif
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