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/**
* @file lltrace.h
* @brief Runtime statistics accumulation.
*
* $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2012, 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.
*
* 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.
*
* 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
* $/LicenseInfo$
*/
#ifndef LL_LLTRACETHREADRECORDER_H
#define LL_LLTRACETHREADRECORDER_H
#include "stdtypes.h"
#include "llpreprocessor.h"
#include "llmutex.h"
#include "lltraceaccumulators.h"
#include "llthreadlocalstorage.h"
namespace LLTrace
{
class LL_COMMON_API ThreadRecorder
{
protected:
struct ActiveRecording;
typedef std::vector<ActiveRecording*> active_recording_list_t;
public:
ThreadRecorder();
explicit ThreadRecorder(ThreadRecorder& master);
~ThreadRecorder();
void activate(AccumulatorBufferGroup* recording, bool from_handoff = false);
void deactivate(AccumulatorBufferGroup* recording);
active_recording_list_t::reverse_iterator bringUpToDate(AccumulatorBufferGroup* recording);
void addChildRecorder(class ThreadRecorder* child);
void removeChildRecorder(class ThreadRecorder* child);
// call this periodically to gather stats data from child threads
void pullFromChildren();
void pushToParent();
TimeBlockTreeNode* getTimeBlockTreeNode(S32 index);
protected:
void init();
protected:
struct ActiveRecording
{
ActiveRecording(AccumulatorBufferGroup* target);
AccumulatorBufferGroup* mTargetRecording;
AccumulatorBufferGroup mPartialRecording;
void movePartialToTarget();
};
AccumulatorBufferGroup mThreadRecordingBuffers;
BlockTimerStackRecord mBlockTimerStackRecord;
active_recording_list_t mActiveRecordings;
class BlockTimer* mRootTimer;
TimeBlockTreeNode* mTimeBlockTreeNodes;
size_t mNumTimeBlockTreeNodes;
typedef std::list<class ThreadRecorder*> child_thread_recorder_list_t;
child_thread_recorder_list_t mChildThreadRecorders; // list of child thread recorders associated with this master
LLMutex mChildListMutex; // protects access to child list
LLMutex mSharedRecordingMutex;
AccumulatorBufferGroup mSharedRecordingBuffers;
ThreadRecorder* mMasterRecorder;
};
const LLThreadLocalPointer<ThreadRecorder>& get_thread_recorder();
void set_thread_recorder(ThreadRecorder*);
void set_master_thread_recorder(ThreadRecorder*);
ThreadRecorder* get_master_thread_recorder();
}
#endif // LL_LLTRACETHREADRECORDER_H
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