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71 lines
1.2 KiB
C++
71 lines
1.2 KiB
C++
/*
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* CStopWatch.h, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#pragma once
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#if defined(__FreeBSD__) || defined(__OpenBSD__)
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#define TO_MS_DIVISOR (1000)
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#else
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#include <ctime>
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#define TO_MS_DIVISOR (CLOCKS_PER_SEC / 1000)
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#endif
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VCMI_LIB_NAMESPACE_BEGIN
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class CStopWatch
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{
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si64 start;
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si64 last;
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si64 mem;
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public:
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CStopWatch()
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: start(clock())
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{
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last=clock();
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mem=0;
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}
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si64 getDiff() //get diff in milliseconds
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{
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si64 ret = clock() - last;
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last = clock();
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return ret / TO_MS_DIVISOR;
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}
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void update()
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{
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last=clock();
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}
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void remember()
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{
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mem=clock();
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}
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si64 memDif()
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{
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return (clock()-mem) / TO_MS_DIVISOR;
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}
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private:
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si64 clock()
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{
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#if defined(__FreeBSD__) || defined(__OpenBSD__) // TODO: enable also for Apple?
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struct rusage usage;
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getrusage(RUSAGE_SELF, &usage);
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return static_cast<si64>(usage.ru_utime.tv_sec + usage.ru_stime.tv_sec) * 1000000 + usage.ru_utime.tv_usec + usage.ru_stime.tv_usec;
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#else
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return std::clock();
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#endif
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}
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};
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VCMI_LIB_NAMESPACE_END
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