140 lines
3.1 KiB
C++
140 lines
3.1 KiB
C++
/*
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Copyright (C) 2008 Grame & RTL
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program 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
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __JackEngineProfiling__
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#define __JackEngineProfiling__
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#include "types.h"
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#include "JackTypes.h"
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#include "JackConstants.h"
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#include "JackShmMem.h"
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namespace Jack
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{
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#define TIME_POINTS 100000
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#define FAILURE_TIME_POINTS 10000
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#define FAILURE_WINDOW 10
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#define MEASURED_CLIENTS 32
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/*!
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\brief Timing structure for a client.
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*/
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PRE_PACKED_STRUCTURE
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struct JackTimingMeasureClient
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{
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int fRefNum;
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jack_time_t fSignaledAt;
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jack_time_t fAwakeAt;
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jack_time_t fFinishedAt;
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jack_client_state_t fStatus;
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JackTimingMeasureClient()
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:fRefNum(-1),
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fSignaledAt(0),
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fAwakeAt(0),
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fFinishedAt(0),
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fStatus((jack_client_state_t)0)
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{}
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} POST_PACKED_STRUCTURE;
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/*!
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\brief Timing interval in the global table for a given client
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*/
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PRE_PACKED_STRUCTURE
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struct JackTimingClientInterval
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{
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int fRefNum;
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char fName[JACK_CLIENT_NAME_SIZE + 1];
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int fBeginInterval;
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int fEndInterval;
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JackTimingClientInterval()
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:fRefNum(-1),
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fBeginInterval(-1),
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fEndInterval(-1)
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{}
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} POST_PACKED_STRUCTURE;
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/*!
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\brief Timing structure for a table of clients.
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*/
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PRE_PACKED_STRUCTURE
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struct JackTimingMeasure
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{
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unsigned int fAudioCycle;
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jack_time_t fPeriodUsecs;
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jack_time_t fCurCycleBegin;
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jack_time_t fPrevCycleEnd;
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JackTimingMeasureClient fClientTable[CLIENT_NUM];
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JackTimingMeasure()
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:fAudioCycle(0),
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fPeriodUsecs(0),
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fCurCycleBegin(0),
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fPrevCycleEnd(0)
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{}
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} POST_PACKED_STRUCTURE;
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/*!
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\brief Client timing monitoring.
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*/
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class JackClientInterface;
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class JackGraphManager;
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PRE_PACKED_STRUCTURE
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class SERVER_EXPORT JackEngineProfiling
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{
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private:
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JackTimingMeasure fProfileTable[TIME_POINTS];
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JackTimingClientInterval fIntervalTable[MEASURED_CLIENTS];
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unsigned int fAudioCycle;
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unsigned int fMeasuredClient;
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bool CheckClient(const char* name, int cur_point);
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public:
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JackEngineProfiling();
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~JackEngineProfiling();
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void Profile(JackClientInterface** table,
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JackGraphManager* manager,
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jack_time_t period_usecs,
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jack_time_t cur_cycle_begin,
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jack_time_t prev_cycle_end);
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JackTimingMeasure* GetCurMeasure();
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} POST_PACKED_STRUCTURE;
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} // end of namespace
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#endif
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