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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 "lltracerecording.h"
namespace LLTrace
{
class LL_COMMON_API ThreadRecorder
{
protected:
struct ActiveRecording;
typedef std::vector<ActiveRecording*> active_recording_list_t;
public:
ThreadRecorder();
virtual ~ThreadRecorder();
void activate(Recording* recording);
void deactivate(Recording* recording);
active_recording_list_t::reverse_iterator bringUpToDate(Recording* recording);
virtual void pushToMaster() = 0;
TimeBlockTreeNode* getTimeBlockTreeNode(S32 index);
protected:
struct ActiveRecording
{
ActiveRecording(Recording* target);
Recording* mTargetRecording;
RecordingBuffers mPartialRecording;
void movePartialToTarget();
};
Recording mThreadRecording;
active_recording_list_t mActiveRecordings;
class BlockTimer* mRootTimer;
TimeBlockTreeNode* mTimeBlockTreeNodes;
size_t mNumTimeBlockTreeNodes;
};
class LL_COMMON_API MasterThreadRecorder : public ThreadRecorder
{
public:
MasterThreadRecorder();
void addSlaveThread(class SlaveThreadRecorder* child);
void removeSlaveThread(class SlaveThreadRecorder* child);
/*virtual */ void pushToMaster();
// call this periodically to gather stats data from slave threads
void pullFromSlaveThreads();
LLMutex* getSlaveListMutex() { return &mSlaveListMutex; }
private:
typedef std::list<class SlaveThreadRecorder*> slave_thread_recorder_list_t;
slave_thread_recorder_list_t mSlaveThreadRecorders; // list of slave thread recorders associated with this master
LLMutex mSlaveListMutex; // protects access to slave list
};
class LL_COMMON_API SlaveThreadRecorder : public ThreadRecorder
{
public:
SlaveThreadRecorder(MasterThreadRecorder& master);
~SlaveThreadRecorder();
// call this periodically to gather stats data for master thread to consume
/*virtual*/ void pushToMaster();
MasterThreadRecorder* mMaster;
class SharedData : public Recording
{
public:
void appendFrom(const Recording& source);
void appendTo(Recording& sink);
void mergeFrom(const RecordingBuffers& source);
void mergeTo(RecordingBuffers& sink);
void reset();
private:
LLMutex mRecordingMutex;
};
SharedData mSharedData;
MasterThreadRecorder& mMasterRecorder;
};
}
#endif // LL_LLTRACETHREADRECORDER_H
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