86 lines
2.4 KiB
C
86 lines
2.4 KiB
C
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/*
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Copyright (C) 2023 Srivats P.
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This file is part of "Ostinato"
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This is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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#ifndef _STREAM_TIMING
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#define _STREAM_TIMING
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#include <QHash>
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#include <QMutex>
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#include <QTimer>
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#include <time.h>
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class StreamTiming : public QObject
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{
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Q_OBJECT
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public:
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StreamTiming(int portCount);
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bool recordTxTime(uint portId, uint guid, uint ttagId,
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struct timespec timestamp);
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bool recordRxTime(uint portId, uint guid, uint ttagId,
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struct timespec timestamp);
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bool recordTxTime(uint portId, uint guid, uint ttagId,
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struct timeval timestamp);
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bool recordRxTime(uint portId, uint guid, uint ttagId,
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struct timeval timestamp);
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static StreamTiming* instance();
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private:
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int processRecords();
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int deleteStaleRecords();
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quint32 makeKey(uint guid, uint ttagId) {
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return guid << 24 | (ttagId & 0xFF);
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}
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// XXX: use only time intervals, not absolute time
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quint64 timespecToNsecs(const struct timespec &interval) {
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return interval.tv_nsec + interval.tv_sec*1e9;
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}
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struct TtagData {
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struct timespec timeStamp; // nanosec resolution
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uint portId;
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};
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struct Timing {
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struct timespec sumDelays; // nanosec resolution
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uint countDelays;
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};
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// XXX: Key = guid (24 bit MSG), ttagid (8 bit LSB)
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// TODO: encode tx port in in packet and use as part of key
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typedef quint32 Key;
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QHash<Key, TtagData> txHash_;
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QHash<Key, TtagData> rxHash_;
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QList<QHash<Key, Timing>*> timing_; // list index => portId
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QMutex txHashLock_;
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QMutex rxHashLock_;
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QMutex timingLock_; // FIXME: change to RW lock?
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QTimer *timer_; // Periodic timer to process tx/rx records
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QTimer *gcTimer_; // Garbage collection for stale tx records
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};
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#endif
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