87 lines
2.7 KiB
C++
87 lines
2.7 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 dbPutNotifyBlockerh
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#define dbPutNotifyBlockerh
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#ifdef epicsExportSharedSymbols
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#define dbPutNotifyBlockerh_restore_epicsExportSharedSymbols
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#undef epicsExportSharedSymbols
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#endif
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#include "tsFreeList.h"
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#include "compilerDependencies.h"
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#ifdef dbPutNotifyBlockerh_restore_epicsExportSharedSymbols
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#define epicsExportSharedSymbols
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#endif
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class dbPutNotifyBlocker : public dbBaseIO {
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public:
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dbPutNotifyBlocker ();
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virtual ~dbPutNotifyBlocker ();
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void initiatePutNotify ( epicsGuard < epicsMutex > & locker,
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cacWriteNotify & notify, struct dbAddr & addr,
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unsigned type, unsigned long count, const void * pValue );
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void cancel ();
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void show ( unsigned level ) const;
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void * operator new ( size_t size,
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tsFreeList < dbPutNotifyBlocker > & );
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epicsPlacementDeleteOperator (( void *,
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tsFreeList < dbPutNotifyBlocker > & ))
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private:
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putNotify pn;
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//
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// Include a union of all scalar types
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// including fixed length strings so
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// that in many cases we can avoid
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// allocating another buffer
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//
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union {
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dbr_string_t strval;
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dbr_short_t shrtval;
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dbr_short_t intval;
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dbr_float_t fltval;
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dbr_enum_t enmval;
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dbr_char_t charval;
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dbr_long_t longval;
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dbr_double_t doubleval;
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} dbrScalarValue;
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epicsEvent block;
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cacWriteNotify * pNotify;
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unsigned long maxValueSize;
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dbSubscriptionIO * isSubscription ();
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void expandValueBuf ( unsigned long newSize );
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friend void putNotifyCompletion ( putNotify *ppn );
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dbPutNotifyBlocker ( const dbPutNotifyBlocker & );
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dbPutNotifyBlocker & operator = ( const dbPutNotifyBlocker & );
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void * operator new ( size_t size );
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void operator delete ( void * );
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};
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#endif // ifndef dbPutNotifyBlockerh
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