123 lines
3.1 KiB
C++
123 lines
3.1 KiB
C++
/**
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* @file llstat.h
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* @brief Runtime statistics accumulation.
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*
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* $LicenseInfo:firstyear=2001&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef LL_LLSTAT_H
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#define LL_LLSTAT_H
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#include <map>
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#include "lltimer.h"
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#include "llframetimer.h"
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class LLSD;
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// ----------------------------------------------------------------------------
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class LL_COMMON_API LLStat
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{
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private:
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typedef std::multimap<std::string, LLStat*> stat_map_t;
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static stat_map_t& getStatList();
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public:
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LLStat(std::string name = std::string(), S32 num_bins = 32, BOOL use_frame_timer = FALSE);
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~LLStat();
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void start(); // Start the timer for the current "frame", otherwise uses the time tracked from
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// the last addValue
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void reset();
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void addValue(const F32 value = 1.f); // Adds the current value being tracked, and tracks the DT.
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void addValue(const S32 value) { addValue((F32)value); }
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void addValue(const U32 value) { addValue((F32)value); }
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S32 getCurBin() const;
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S32 getNextBin() const;
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F32 getPrev(S32 age) const; // Age is how many "addValues" previously - zero is current
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F32 getPrevPerSec(S32 age) const; // Age is how many "addValues" previously - zero is current
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F32 getCurrent() const;
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F32 getCurrentPerSec() const;
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F32 getCurrentDuration() const;
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F64 getPrevBeginTime(S32 age) const;
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F64 getPrevTime(S32 age) const;
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F64 getBinTime(S32 bin) const;
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F32 getMin() const;
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F32 getMinPerSec() const;
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F32 getMean() const;
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F32 getMeanPerSec() const;
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F32 getMeanDuration() const;
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F32 getMax() const;
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F32 getMaxPerSec() const;
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U32 getNumValues() const;
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S32 getNumBins() const;
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F64 getLastTime() const;
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private:
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BOOL mUseFrameTimer;
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U32 mNumValues;
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U32 mNumBins;
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F32 mLastValue;
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F64 mLastTime;
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struct ValueEntry
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{
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ValueEntry()
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: mValue(0.f),
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mBeginTime(0.0),
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mTime(0.0),
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mDT(0.f)
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{}
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F32 mValue;
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F64 mBeginTime;
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F64 mTime;
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F32 mDT;
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};
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ValueEntry* mBins;
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S32 mCurBin;
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S32 mNextBin;
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std::string mName;
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static LLTimer sTimer;
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static LLFrameTimer sFrameTimer;
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public:
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static LLStat* getStat(const std::string& name)
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{
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// return the first stat that matches 'name'
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stat_map_t::iterator iter = getStatList().find(name);
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if (iter != getStatList().end())
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return iter->second;
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else
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return NULL;
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}
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};
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#endif // LL_STAT_
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