86 lines
3.1 KiB
C++
86 lines
3.1 KiB
C++
/*************************************************************************\
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* Copyright (c) 2002 The University of Chicago, as Operator of Argonne
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* National Laboratory.
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* Copyright (c) 2002 The Regents of the University of California, as
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* Operator of Los Alamos National Laboratory.
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* EPICS BASE Versions 3.13.7
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* and higher are distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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\*************************************************************************/
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//
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// $Id$
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//
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//
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// L O S A L A M O S
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// Los Alamos National Laboratory
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// Los Alamos, New Mexico 87545
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//
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// Copyright, 1986, The Regents of the University of California.
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//
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//
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// Author Jeffrey O. Hill
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// johill@lanl.gov
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// 505 665 1831
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//
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#ifndef searchTimerh
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#define searchTimerh
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#ifdef epicsExportSharedSymbols
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# define searchTimerh_epicsExportSharedSymbols
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# undef epicsExportSharedSymbols
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#endif
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#include "epicsMutex.h"
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#include "epicsGuard.h"
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#include "epicsTimer.h"
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#ifdef searchTimerh_epicsExportSharedSymbols
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# define epicsExportSharedSymbols
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# include "shareLib.h"
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#endif
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#include "caProto.h"
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class udpMutex;
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class searchTimer : private epicsTimerNotify {
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public:
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searchTimer ( class udpiiu &, epicsTimerQueue &, udpMutex & );
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virtual ~searchTimer ();
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void notifySearchResponse ( epicsGuard < udpMutex > &,
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ca_uint32_t respDatagramSeqNo,
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bool seqNumberIsValid, const epicsTime & currentTime );
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void newChannelNotify ( epicsGuard < udpMutex > &,
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const epicsTime &, bool firstChannel,
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unsigned minRetryNo );
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void beaconAnomalyNotify ( epicsGuard < udpMutex > &,
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const epicsTime & currentTime, const double & delay );
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void show ( unsigned level ) const;
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private:
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double period; /* period between tries */
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epicsTimer & timer;
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class udpiiu & iiu;
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udpMutex & mutex;
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unsigned framesPerTry; /* # of UDP frames per search try */
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unsigned framesPerTryCongestThresh; /* one half N tries w congest */
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unsigned minRetry; /* min retry number so far */
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unsigned minRetryThisPass;
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unsigned searchAttempts; /* num search tries within this timer experation */
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unsigned searchResponses; /* num search resp within this timer experation */
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unsigned searchAttemptsThisPass; /* num search tries within this pass */
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unsigned searchResponsesThisPass; /* num search resp within this pass */
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ca_uint32_t dgSeqNoAtTimerExpireBegin;
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ca_uint32_t dgSeqNoAtTimerExpireEnd;
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expireStatus expire ( const epicsTime & currentTime );
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void recomputeTimerPeriod ( epicsGuard < udpMutex > &, unsigned minRetryNew );
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void recomputeTimerPeriodAndStartTimer ( epicsGuard < udpMutex > &,
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const epicsTime & currentTime, unsigned minRetryNew,
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const double & initialDelay );
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searchTimer ( const searchTimer & );
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searchTimer & operator = ( const searchTimer & );
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};
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#endif // ifdef searchTimerh
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