/usr/include/ossim/base/ossimTimer.h is in libossim-dev 1.8.16-3+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 | /*
* This code was taken from the OpenScene graph.
*/
#ifndef ossimTimer_HEADER
#define ossimTimer_HEADER 1
#include "ossimConstants.h"
/** Timer class is used for measuring elapsed time or time between two points. */
class OSSIM_DLL ossimTimer
{
public:
#if defined(_MSC_VER)
typedef __int64 Timer_t;
#else
typedef unsigned long long Timer_t;
#endif
ossimTimer();
~ossimTimer() {m_instance = 0;}
static ossimTimer* instance();
/** Get the timers tick value.*/
Timer_t tick() const;
/** Set the start.*/
void setStartTick() { m_startTick = tick(); }
void setStartTick(Timer_t t) { m_startTick = t; }
Timer_t getStartTick() const { return m_startTick; }
/** Get elapsed time in seconds.*/
inline double time_s() const { return delta_s(m_startTick, tick()); }
/** Get elapsed time in milliseconds.*/
inline double time_m() const { return delta_m(m_startTick, tick()); }
/** Get elapsed time in micoseconds.*/
inline double time_u() const { return delta_u(m_startTick, tick()); }
/** Get elapsed time in nanoseconds.*/
inline double time_n() const { return delta_n(m_startTick, tick()); }
/** Get the time in seconds between timer ticks t1 and t2.*/
inline double delta_s( Timer_t t1, Timer_t t2 ) const { return (double)(t2 - t1)*m_secsPerTick; }
/** Get the time in milliseconds between timer ticks t1 and t2.*/
inline double delta_m( Timer_t t1, Timer_t t2 ) const { return delta_s(t1,t2)*1e3; }
/** Get the time in microseconds between timer ticks t1 and t2.*/
inline double delta_u( Timer_t t1, Timer_t t2 ) const { return delta_s(t1,t2)*1e6; }
/** Get the time in nanoseconds between timer ticks t1 and t2.*/
inline double delta_n( Timer_t t1, Timer_t t2 ) const { return delta_s(t1,t2)*1e9; }
/** Get the the number of seconds per tick. */
inline double getSecondsPerTick() const { return m_secsPerTick; }
protected:
static ossimTimer* m_instance;
Timer_t m_startTick;
double m_secsPerTick;
};
#endif
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