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aSimplify the new stopwatch code.

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This commit is contained in:
Jonathan Naylor
2018-07-15 20:26:54 +01:00
parent 9ad26325be
commit 6936b80c81
2 changed files with 40 additions and 15 deletions
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44
StopWatch.cpp
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@@ -21,21 +21,32 @@
#if defined(_WIN32) || defined(_WIN64)
CStopWatch::CStopWatch() :
m_frequency(),
m_frequencyS(),
m_frequencyMS(),
m_start()
{
::QueryPerformanceFrequency(&m_frequency);
::QueryPerformanceFrequency(&m_frequencyS);
m_frequencyMS.QuadPart = m_frequencyS.QuadPart / 1000ULL;
}
CStopWatch::~CStopWatch()
{
}
unsigned long CStopWatch::start()
unsigned long long CStopWatch::time() const
{
LARGE_INTEGER now;
::QueryPerformanceCounter(&now);
return (unsigned long long)(now.QuadPart / m_frequencyMS.QuadPart);
}
unsigned long long CStopWatch::start()
{
::QueryPerformanceCounter(&m_start);
return (unsigned long)(m_start.QuadPart / m_frequency.QuadPart);
return (unsigned long long)(m_start.QuadPart / m_frequencyS.QuadPart);
}
unsigned int CStopWatch::elapsed()
@@ -46,7 +57,7 @@ unsigned int CStopWatch::elapsed()
LARGE_INTEGER temp;
temp.QuadPart = (now.QuadPart - m_start.QuadPart) * 1000;
return (unsigned int)(temp.QuadPart / m_frequency.QuadPart);
return (unsigned int)(temp.QuadPart / m_frequencyS.QuadPart);
}
#else
@@ -55,7 +66,7 @@ unsigned int CStopWatch::elapsed()
#include <ctime>
CStopWatch::CStopWatch() :
m_start()
m_startMS(0ULL)
{
}
@@ -63,11 +74,22 @@ CStopWatch::~CStopWatch()
{
}
unsigned long CStopWatch::start()
unsigned long long CStopWatch::time() const
{
::clock_gettime(CLOCK_MONOTONIC, &m_start);
struct timeval now;
::gettimeofday(&now, NULL);
return m_start.tv_sec * 1000UL + m_start.tv_nsec / 1000000UL;
return now.tv_sec * 1000ULL + now.tv_usec / 1000ULL;
}
unsigned long long CStopWatch::start()
{
struct timespec now;
::clock_gettime(CLOCK_MONOTONIC, &now);
m_startMS = now.tv_sec * 1000ULL + now.tv_nsec / 1000000ULL;
return m_startMS;
}
unsigned int CStopWatch::elapsed()
@@ -75,9 +97,9 @@ unsigned int CStopWatch::elapsed()
struct timespec now;
::clock_gettime(CLOCK_MONOTONIC, &now);
int offset = ((now.tv_sec - m_start.tv_sec) * 1000000000UL + now.tv_nsec - m_start.tv_nsec ) / 1000000UL;
unsigned long long nowMS = now.tv_sec * 1000ULL + now.tv_nsec / 1000000ULL;
return (unsigned int)offset;
return nowMS - m_startMS;
}
#endif