From: kwolekr Date: Fri, 29 Mar 2013 20:51:57 +0000 (-0400) Subject: Add varying levels of precision to TimeTaker X-Git-Url: http://81.2.79.47:8989/gitweb/?a=commitdiff_plain;h=df49b93877b40551111be6ef5ecfe4629787ab75;p=zefram%2Fminetest%2Fminetest_engine.git Add varying levels of precision to TimeTaker --- diff --git a/src/gettime.h b/src/gettime.h index 61190655..cde1471e 100644 --- a/src/gettime.h +++ b/src/gettime.h @@ -31,7 +31,15 @@ with this program; if not, write to the Free Software Foundation, Inc., Normal build: main.cpp Server build: servermain.cpp */ +enum TimePrecision { + PRECISION_SECONDS, + PRECISION_MILLI, + PRECISION_MICRO, + PRECISION_NANO +}; + extern u32 getTimeMs(); +extern u32 getTime(TimePrecision prec); /* Timestamp stuff diff --git a/src/main.cpp b/src/main.cpp index 1d625275..56c12585 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -133,7 +133,12 @@ MainGameCallback *g_gamecallback = NULL; u32 getTimeMs() { /* Use imprecise system calls directly (from porting.h) */ - return porting::getTimeMs(); + return porting::getTime(PRECISION_MILLI); +} + +u32 getTime(TimePrecision prec) +{ + return porting::getTime(prec); } #else @@ -142,7 +147,7 @@ u32 getTimeMs() class TimeGetter { public: - virtual u32 getTime() = 0; + virtual u32 getTime(TimePrecision prec) = 0; }; // A precise irrlicht one @@ -152,11 +157,15 @@ public: IrrlichtTimeGetter(IrrlichtDevice *device): m_device(device) {} - u32 getTime() + u32 getTime(TimePrecision prec) { - if(m_device == NULL) - return 0; - return m_device->getTimer()->getRealTime(); + if (prec == PRECISION_MILLI) { + if(m_device == NULL) + return 0; + return m_device->getTimer()->getRealTime(); + } else { + return porting::getTime(prec); + } } private: IrrlichtDevice *m_device; @@ -165,9 +174,9 @@ private: class SimpleTimeGetter: public TimeGetter { public: - u32 getTime() + u32 getTime(TimePrecision prec) { - return porting::getTimeMs(); + return porting::getTime(prec); } }; @@ -179,7 +188,13 @@ u32 getTimeMs() { if(g_timegetter == NULL) return 0; - return g_timegetter->getTime(); + return g_timegetter->getTime(PRECISION_MILLI); +} + +u32 getTime(TimePrecision prec) { + if (g_timegetter == NULL) + return 0; + return g_timegetter->getTime(prec); } #endif @@ -805,7 +820,7 @@ void SpeedTests() } } // Do at least 10ms - while(timer.getTime() < 10); + while(timer.getTimerTime() < 10); u32 dtime = timer.stop(); u32 per_ms = n / dtime; diff --git a/src/porting.h b/src/porting.h index d7d10734..bcce96ef 100644 --- a/src/porting.h +++ b/src/porting.h @@ -28,6 +28,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "irrlichttypes.h" // u32 #include "debug.h" #include "constants.h" +#include "gettime.h" #ifdef _MSC_VER #define SWPRINTF_CHARSTRING L"%S" @@ -153,18 +154,65 @@ bool threadSetPriority(threadid_t tid, int prio); */ #ifdef _WIN32 // Windows #include + + inline u32 getTimeS() + { + return GetTickCount() / 1000; + } + inline u32 getTimeMs() { return GetTickCount(); } + + inline u32 getTimeUs() + { + LARGE_INTEGER freq, t; + QueryPerformanceFrequency(&freq); + QueryPerformanceCounter(&t); + return (double)(t.QuadPart) / ((double)(freq.QuadPart) / 1000000.0); + } + + inline u32 getTimeNs() + { + LARGE_INTEGER freq, t; + QueryPerformanceFrequency(&freq); + QueryPerformanceCounter(&t); + return (double)(t.QuadPart) / ((double)(freq.QuadPart) / 1000000000.0); + } + #else // Posix #include + #include + + inline u32 getTimeS() + { + struct timeval tv; + gettimeofday(&tv, NULL); + return tv.tv_sec; + } + inline u32 getTimeMs() { struct timeval tv; gettimeofday(&tv, NULL); return tv.tv_sec * 1000 + tv.tv_usec / 1000; } + + inline u32 getTimeUs() + { + struct timeval tv; + gettimeofday(&tv, NULL); + return tv.tv_sec * 1000000 + tv.tv_usec; + } + + inline u32 getTimeNs() + { + struct timespec ts; + clock_gettime(CLOCK_REALTIME, &ts); + return ts.tv_sec * 1000000000 + ts.tv_nsec; + } + /*#include inline u32 getTimeMs() { @@ -174,6 +222,22 @@ bool threadSetPriority(threadid_t tid, int prio); }*/ #endif +inline u32 getTime(TimePrecision prec) +{ + switch (prec) { + case PRECISION_SECONDS: + return getTimeS(); + case PRECISION_MILLI: + return getTimeMs(); + case PRECISION_MICRO: + return getTimeUs(); + case PRECISION_NANO: + return getTimeNs(); + } + return 0; +} + + } // namespace porting #endif // PORTING_HEADER diff --git a/src/util/timetaker.cpp b/src/util/timetaker.cpp index 910fea82..720a9e1a 100644 --- a/src/util/timetaker.cpp +++ b/src/util/timetaker.cpp @@ -23,19 +23,20 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "../log.h" #include -TimeTaker::TimeTaker(const char *name, u32 *result) +TimeTaker::TimeTaker(const char *name, u32 *result, TimePrecision prec) { m_name = name; m_result = result; m_running = true; - m_time1 = getTimeMs(); + m_precision = prec; + m_time1 = getTime(prec); } u32 TimeTaker::stop(bool quiet) { if(m_running) { - u32 time2 = getTimeMs(); + u32 time2 = getTime(m_precision); u32 dtime = time2 - m_time1; if(m_result != NULL) { @@ -52,9 +53,9 @@ u32 TimeTaker::stop(bool quiet) return 0; } -u32 TimeTaker::getTime() +u32 TimeTaker::getTimerTime() { - u32 time2 = getTimeMs(); + u32 time2 = getTime(m_precision); u32 dtime = time2 - m_time1; return dtime; } diff --git a/src/util/timetaker.h b/src/util/timetaker.h index 0b9d9ca0..5512c205 100644 --- a/src/util/timetaker.h +++ b/src/util/timetaker.h @@ -21,6 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #define UTIL_TIMETAKER_HEADER #include "../irrlichttypes.h" +#include "../gettime.h" /* TimeTaker @@ -29,7 +30,8 @@ with this program; if not, write to the Free Software Foundation, Inc., class TimeTaker { public: - TimeTaker(const char *name, u32 *result=NULL); + TimeTaker(const char *name, u32 *result=NULL, + TimePrecision=PRECISION_MILLI); ~TimeTaker() { @@ -38,12 +40,13 @@ public: u32 stop(bool quiet=false); - u32 getTime(); + u32 getTimerTime(); private: const char *m_name; u32 m_time1; bool m_running; + TimePrecision m_precision; u32 *m_result; };