diff options
Diffstat (limited to 'indra/llcommon/lltimer.h')
| -rw-r--r-- | indra/llcommon/lltimer.h | 84 |
1 files changed, 31 insertions, 53 deletions
diff --git a/indra/llcommon/lltimer.h b/indra/llcommon/lltimer.h index 41562f4a51..513de0605d 100644 --- a/indra/llcommon/lltimer.h +++ b/indra/llcommon/lltimer.h @@ -2,43 +2,40 @@ * @file lltimer.h * @brief Cross-platform objects for doing timing * - * $LicenseInfo:firstyear=2000&license=viewergpl$ - * - * Copyright (c) 2000-2007, 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://secondlife.com/developers/opensource/gplv2 + * Copyright (C) 2010, Linden Research, Inc. + * + * 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. * - * 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://secondlife.com/developers/opensource/flossexception + * 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. * - * 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. + * 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 * - * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO - * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, - * COMPLETENESS OR PERFORMANCE. + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ #ifndef LL_TIMER_H #define LL_TIMER_H -#if LL_LINUX || LL_DARWIN +#if LL_LINUX || LL_DARWIN || LL_SOLARIS #include <sys/time.h> #endif #include <limits.h> #include "stdtypes.h" +#include <string> +#include <list> // units conversions #ifndef USEC_PER_SEC const U32 USEC_PER_SEC = 1000000; @@ -50,7 +47,7 @@ const U32 USEC_PER_HOUR = USEC_PER_MIN * MIN_PER_HOUR; const U32 SEC_PER_HOUR = SEC_PER_MIN * MIN_PER_HOUR; const F64 SEC_PER_USEC = 1.0 / (F64) USEC_PER_SEC; -class LLTimer +class LL_COMMON_API LLTimer { public: static LLTimer *sTimer; // global timer @@ -109,16 +106,17 @@ public: // // Various functions for initializing/accessing clock and timing stuff. Don't use these without REALLY knowing how they work. // -U64 get_clock_count(); -F64 calc_clock_frequency(U32 msecs); -void update_clock_frequencies(); +LL_COMMON_API U64 get_clock_count(); +LL_COMMON_API F64 calc_clock_frequency(U32 msecs); +LL_COMMON_API void update_clock_frequencies(); // Sleep for milliseconds -void ms_sleep(U32 ms); +LL_COMMON_API void ms_sleep(U32 ms); +LL_COMMON_API U32 micro_sleep(U64 us, U32 max_yields = 0xFFFFFFFF); // Returns the correct UTC time in seconds, like time(NULL). // Useful on the viewer, which may have its local clock set wrong. -time_t time_corrected(); +LL_COMMON_API time_t time_corrected(); static inline time_t time_min() { @@ -149,42 +147,22 @@ static inline time_t time_max() } // Correction factor used by time_corrected() above. -extern S32 gUTCOffset; +extern LL_COMMON_API S32 gUTCOffset; // Is the current computer (in its current time zone) // observing daylight savings time? -BOOL is_daylight_savings(); +LL_COMMON_API BOOL is_daylight_savings(); // Converts internal "struct tm" time buffer to Pacific Standard/Daylight Time // Usage: // S32 utc_time; // utc_time = time_corrected(); // struct tm* internal_time = utc_to_pacific_time(utc_time, gDaylight); -struct tm* utc_to_pacific_time(time_t utc_time, BOOL pacific_daylight_time); - -void microsecondsToTimecodeString(U64 current_time, char *tcstring); -void secondsToTimecodeString(F32 current_time, char *tcstring); - -// class for scheduling a function to be called at a given frequency (approximate, inprecise) -class LLEventTimer -{ -public: - LLEventTimer(F32 period); // period is the amount of time between each call to tick() in seconds - virtual ~LLEventTimer(); - - //function to be called at the supplied frequency - // Normally return FALSE; TRUE will delete the timer after the function returns. - virtual BOOL tick() = 0; +LL_COMMON_API struct tm* utc_to_pacific_time(time_t utc_time, BOOL pacific_daylight_time); - static void updateClass(); +LL_COMMON_API void microsecondsToTimecodeString(U64 current_time, std::string& tcstring); +LL_COMMON_API void secondsToTimecodeString(F32 current_time, std::string& tcstring); -protected: - LLTimer mEventTimer; - F32 mPeriod; - -private: - //list of active timers - static std::list<LLEventTimer*> sActiveList; -}; +U64 LL_COMMON_API totalTime(); // Returns current system time in microseconds #endif |