diff options
Diffstat (limited to 'indra/llcommon/lltimer.cpp')
| -rwxr-xr-x[-rw-r--r--] | indra/llcommon/lltimer.cpp | 168 |
1 files changed, 87 insertions, 81 deletions
diff --git a/indra/llcommon/lltimer.cpp b/indra/llcommon/lltimer.cpp index 25b768079b..76e892212a 100644..100755 --- a/indra/llcommon/lltimer.cpp +++ b/indra/llcommon/lltimer.cpp @@ -2,31 +2,25 @@ * @file lltimer.cpp * @brief Cross-platform objects for doing timing * - * $LicenseInfo:firstyear=2000&license=viewergpl$ - * - * Copyright (c) 2000-2009, Linden Research, Inc. - * + * $LicenseInfo:firstyear=2000&license=viewerlgpl$ * Second Life Viewer Source Code - * The source code in this file ("Source Code") is provided by Linden Lab - * to you under the terms of the GNU General Public License, version 2.0 - * ("GPL"), unless you have obtained a separate licensing agreement - * ("Other License"), formally executed by you and Linden Lab. Terms of - * the GPL can be found in doc/GPL-license.txt in this distribution, or - * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2 + * Copyright (C) 2010, Linden Research, Inc. * - * There are special exceptions to the terms and conditions of the GPL as - * it is applied to this Source Code. View the full text of the exception - * in the file doc/FLOSS-exception.txt in this software distribution, or - * online at - * http://secondlifegrid.net/programs/open_source/licensing/flossexception + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. * - * By copying, modifying or distributing this software, you acknowledge - * that you have read and understood your obligations described above, - * and agree to abide by those obligations. + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. * - * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO - * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, - * COMPLETENESS OR PERFORMANCE. + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -37,25 +31,18 @@ #include "u64.h" #if LL_WINDOWS -# define WIN32_LEAN_AND_MEAN -# include <winsock2.h> -# include <windows.h> +# include "llwin32headerslean.h" #elif LL_LINUX || LL_SOLARIS || LL_DARWIN -# include <errno.h> +# include <errno.h> # include <sys/time.h> #else # error "architecture not supported" #endif - // // Locally used constants // -const U32 SEC_PER_DAY = 86400; -const F64 SEC_TO_MICROSEC = 1000000.f; const U64 SEC_TO_MICROSEC_U64 = 1000000; -const F64 USEC_TO_SEC_F64 = 0.000001; - //--------------------------------------------------------------------------- // Globals and statics @@ -64,11 +51,6 @@ const F64 USEC_TO_SEC_F64 = 0.000001; S32 gUTCOffset = 0; // viewer's offset from server UTC, in seconds LLTimer* LLTimer::sTimer = NULL; -F64 gClockFrequency = 0.0; -F64 gClockFrequencyInv = 0.0; -F64 gClocksToMicroseconds = 0.0; -U64 gTotalTimeClockCount = 0; -U64 gLastTotalTimeClockCount = 0; // // Forward declarations @@ -89,7 +71,7 @@ U32 micro_sleep(U64 us, U32 max_yields) { // max_yields is unused; just fiddle with it to avoid warnings. max_yields = 0; - ms_sleep(us / 1000); + ms_sleep((U32)(us / 1000)); return 0; } #elif LL_LINUX || LL_SOLARIS || LL_DARWIN @@ -196,7 +178,7 @@ U64 get_clock_count() return clock_count.QuadPart - offset; } -F64 calc_clock_frequency(U32 uiMeasureMSecs) +F64 calc_clock_frequency() { __int64 freq; QueryPerformanceFrequency((LARGE_INTEGER *) &freq); @@ -207,9 +189,9 @@ F64 calc_clock_frequency(U32 uiMeasureMSecs) #if LL_LINUX || LL_DARWIN || LL_SOLARIS // Both Linux and Mac use gettimeofday for accurate time -F64 calc_clock_frequency(unsigned int uiMeasureMSecs) +F64 calc_clock_frequency() { - return 1000000.0; // microseconds, so 1 Mhz. + return 1000000.0; // microseconds, so 1 MHz. } U64 get_clock_count() @@ -222,56 +204,68 @@ U64 get_clock_count() #endif -void update_clock_frequencies() +TimerInfo::TimerInfo() +: mClockFrequency(0.0), + mTotalTimeClockCount(0), + mLastTotalTimeClockCount(0) +{} + +void TimerInfo::update() { - gClockFrequency = calc_clock_frequency(50U); - gClockFrequencyInv = 1.0/gClockFrequency; - gClocksToMicroseconds = gClockFrequencyInv * SEC_TO_MICROSEC; + mClockFrequency = calc_clock_frequency(); + mClockFrequencyInv = 1.0/mClockFrequency; + mClocksToMicroseconds = mClockFrequencyInv; } +TimerInfo& get_timer_info() +{ + static TimerInfo sTimerInfo; + return sTimerInfo; +} /////////////////////////////////////////////////////////////////////////////// // returns a U64 number that represents the number of -// microseconds since the unix epoch - Jan 1, 1970 -U64 totalTime() +// microseconds since the Unix epoch - Jan 1, 1970 +U64MicrosecondsImplicit totalTime() { U64 current_clock_count = get_clock_count(); - if (!gTotalTimeClockCount) + if (!get_timer_info().mTotalTimeClockCount || get_timer_info().mClocksToMicroseconds.value() == 0) { - update_clock_frequencies(); - gTotalTimeClockCount = current_clock_count; + get_timer_info().update(); + get_timer_info().mTotalTimeClockCount = current_clock_count; #if LL_WINDOWS - // Synch us up with local time (even though we PROBABLY don't need to, this is how it was implemented) + // Sync us up with local time (even though we PROBABLY don't need to, this is how it was implemented) // Unix platforms use gettimeofday so they are synced, although this probably isn't a good assumption to // make in the future. - gTotalTimeClockCount = (U64)(time(NULL) * gClockFrequency); + get_timer_info().mTotalTimeClockCount = (U64)(time(NULL) * get_timer_info().mClockFrequency); #endif // Update the last clock count - gLastTotalTimeClockCount = current_clock_count; + get_timer_info().mLastTotalTimeClockCount = current_clock_count; } else { - if (current_clock_count >= gLastTotalTimeClockCount) + if (current_clock_count >= get_timer_info().mLastTotalTimeClockCount) { // No wrapping, we're all okay. - gTotalTimeClockCount += current_clock_count - gLastTotalTimeClockCount; + get_timer_info().mTotalTimeClockCount += current_clock_count - get_timer_info().mLastTotalTimeClockCount; } else { // We've wrapped. Compensate correctly - gTotalTimeClockCount += (0xFFFFFFFFFFFFFFFFULL - gLastTotalTimeClockCount) + current_clock_count; + get_timer_info().mTotalTimeClockCount += (0xFFFFFFFFFFFFFFFFULL - get_timer_info().mLastTotalTimeClockCount) + current_clock_count; } // Update the last clock count - gLastTotalTimeClockCount = current_clock_count; + get_timer_info().mLastTotalTimeClockCount = current_clock_count; } // Return the total clock tick count in microseconds. - return (U64)(gTotalTimeClockCount*gClocksToMicroseconds); + U64Microseconds time(get_timer_info().mTotalTimeClockCount*get_timer_info().mClocksToMicroseconds); + return time; } @@ -279,9 +273,9 @@ U64 totalTime() LLTimer::LLTimer() { - if (!gClockFrequency) + if (!get_timer_info().mClockFrequency) { - update_clock_frequencies(); + get_timer_info().update(); } mStarted = TRUE; @@ -289,20 +283,32 @@ LLTimer::LLTimer() } LLTimer::~LLTimer() +{} + +// static +void LLTimer::initClass() +{ + if (!sTimer) sTimer = new LLTimer; +} + +// static +void LLTimer::cleanupClass() { + delete sTimer; sTimer = NULL; } // static -U64 LLTimer::getTotalTime() +U64MicrosecondsImplicit LLTimer::getTotalTime() { // simply call into the implementation function. - return totalTime(); + U64MicrosecondsImplicit total_time = totalTime(); + return total_time; } // static -F64 LLTimer::getTotalSeconds() +F64SecondsImplicit LLTimer::getTotalSeconds() { - return U64_to_F64(getTotalTime()) * USEC_TO_SEC_F64; + return F64Microseconds(U64_to_F64(getTotalTime())); } void LLTimer::reset() @@ -349,43 +355,43 @@ U64 getElapsedTimeAndUpdate(U64& lastClockCount) } -F64 LLTimer::getElapsedTimeF64() const +F64SecondsImplicit LLTimer::getElapsedTimeF64() const { U64 last = mLastClockCount; - return (F64)getElapsedTimeAndUpdate(last) * gClockFrequencyInv; + return (F64)getElapsedTimeAndUpdate(last) * get_timer_info().mClockFrequencyInv; } -F32 LLTimer::getElapsedTimeF32() const +F32SecondsImplicit LLTimer::getElapsedTimeF32() const { return (F32)getElapsedTimeF64(); } -F64 LLTimer::getElapsedTimeAndResetF64() +F64SecondsImplicit LLTimer::getElapsedTimeAndResetF64() { - return (F64)getElapsedTimeAndUpdate(mLastClockCount) * gClockFrequencyInv; + return (F64)getElapsedTimeAndUpdate(mLastClockCount) * get_timer_info().mClockFrequencyInv; } -F32 LLTimer::getElapsedTimeAndResetF32() +F32SecondsImplicit LLTimer::getElapsedTimeAndResetF32() { return (F32)getElapsedTimeAndResetF64(); } /////////////////////////////////////////////////////////////////////////////// -void LLTimer::setTimerExpirySec(F32 expiration) +void LLTimer::setTimerExpirySec(F32SecondsImplicit expiration) { mExpirationTicks = get_clock_count() - + (U64)((F32)(expiration * gClockFrequency)); + + (U64)((F32)(expiration * get_timer_info().mClockFrequency.value())); } -F32 LLTimer::getRemainingTimeF32() const +F32SecondsImplicit LLTimer::getRemainingTimeF32() const { U64 cur_ticks = get_clock_count(); if (cur_ticks > mExpirationTicks) { return 0.0f; } - return F32((mExpirationTicks - cur_ticks) * gClockFrequencyInv); + return F32((mExpirationTicks - cur_ticks) * get_timer_info().mClockFrequencyInv); } @@ -398,7 +404,7 @@ BOOL LLTimer::checkExpirationAndReset(F32 expiration) } mExpirationTicks = cur_ticks - + (U64)((F32)(expiration * gClockFrequency)); + + (U64)((F32)(expiration * get_timer_info().mClockFrequency)); return TRUE; } @@ -454,7 +460,7 @@ BOOL LLTimer::knownBadTimer() { if (!wcscmp(pci_id, bad_pci_list[check])) { -// llwarns << "unreliable PCI chipset found!! " << pci_id << endl; +// LL_WARNS() << "unreliable PCI chipset found!! " << pci_id << endl; failed = TRUE; break; } @@ -497,20 +503,20 @@ BOOL is_daylight_savings() struct tm* utc_to_pacific_time(time_t utc_time, BOOL pacific_daylight_time) { - S32 pacific_offset_hours; + S32Hours pacific_offset_hours; if (pacific_daylight_time) { - pacific_offset_hours = 7; + pacific_offset_hours = S32Hours(7); } else { - pacific_offset_hours = 8; + pacific_offset_hours = S32Hours(8); } // We subtract off the PST/PDT offset _before_ getting // "UTC" time, because this will handle wrapping around // for 5 AM UTC -> 10 PM PDT of the previous day. - utc_time -= pacific_offset_hours * MIN_PER_HOUR * SEC_PER_MIN; + utc_time -= S32SecondsImplicit(pacific_offset_hours); // Internal buffer to PST/PDT (see above) struct tm* internal_time = gmtime(&utc_time); @@ -527,7 +533,7 @@ struct tm* utc_to_pacific_time(time_t utc_time, BOOL pacific_daylight_time) } -void microsecondsToTimecodeString(U64 current_time, std::string& tcstring) +void microsecondsToTimecodeString(U64MicrosecondsImplicit current_time, std::string& tcstring) { U64 hours; U64 minutes; @@ -549,9 +555,9 @@ void microsecondsToTimecodeString(U64 current_time, std::string& tcstring) } -void secondsToTimecodeString(F32 current_time, std::string& tcstring) +void secondsToTimecodeString(F32SecondsImplicit current_time, std::string& tcstring) { - microsecondsToTimecodeString((U64)((F64)(SEC_TO_MICROSEC*current_time)), tcstring); + microsecondsToTimecodeString(current_time, tcstring); } |