166 lines
4.5 KiB
C++
166 lines
4.5 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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#include <string>
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#include <stdexcept>
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#include <limits.h>
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#include "tsFreeList.h"
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#include "epicsMutex.h"
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#include "epicsEvent.h"
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#include "db_access.h"
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#define epicsExportSharedSymbols
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#include "db_access_routines.h"
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#include "dbCAC.h"
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#include "dbChannelIO.h"
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#include "dbPutNotifyBlocker.h"
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dbChannelIO::dbChannelIO ( cacChannelNotify & notify,
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const dbAddr & addrIn, dbServiceIO & serviceIO ) :
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cacChannel ( notify ), serviceIO ( serviceIO ),
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addr ( addrIn )
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{
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}
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void dbChannelIO::initiateConnect ()
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{
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this->notify ().connectNotify ();
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}
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dbChannelIO::~dbChannelIO ()
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{
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this->serviceIO.destroyAllIO ( *this );
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}
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void dbChannelIO::destroy ()
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{
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this->serviceIO.destroyChannel ( *this );
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// dont access this pointer after above call because
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// object nolonger exists
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}
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cacChannel::ioStatus dbChannelIO::read ( unsigned type,
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unsigned long count, cacReadNotify ¬ify, ioid * )
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{
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this->serviceIO.callReadNotify ( this->addr,
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type, count, notify );
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return iosSynch;
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}
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void dbChannelIO::write ( unsigned type, unsigned long count, const void *pValue )
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{
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int status;
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if ( count > LONG_MAX ) {
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throw outOfBounds();
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}
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status = db_put_field ( &this->addr, type, pValue, static_cast <long> (count) );
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if ( status ) {
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throw -1;
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}
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}
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cacChannel::ioStatus dbChannelIO::write ( unsigned type, unsigned long count,
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const void *pValue, cacWriteNotify ¬ify, ioid *pId )
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{
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if ( count > LONG_MAX ) {
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throw outOfBounds();
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}
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this->serviceIO.initiatePutNotify ( *this, this->addr, type, count, pValue, notify, pId );
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return iosAsynch;
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}
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void dbChannelIO::subscribe ( unsigned type, unsigned long count,
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unsigned mask, cacStateNotify & notify, ioid * pId )
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{
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this->serviceIO.subscribe ( this->addr, *this,
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type, count, mask, notify, pId );
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}
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void dbChannelIO::ioCancel ( const ioid & id )
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{
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this->serviceIO.ioCancel ( *this, id );
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}
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void dbChannelIO::ioShow ( const ioid &id, unsigned level ) const
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{
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this->serviceIO.ioShow ( id, level );
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}
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void dbChannelIO::show ( unsigned level ) const
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{
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printf ("channel at %p attached to local database record %s\n",
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static_cast <const void *> ( this ), this->addr.precord->name );
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if ( level > 0u ) {
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printf ( "\ttype %s, element count %li, field at %p\n",
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dbf_type_to_text ( this->addr.dbr_field_type ), this->addr.no_elements,
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this->addr.pfield );
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}
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if ( level > 1u ) {
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this->serviceIO.show ( level - 2u );
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this->serviceIO.showAllIO ( *this, level - 2u );
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}
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}
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void * dbChannelIO::operator new ( size_t size,
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tsFreeList < dbChannelIO > & freeList )
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{
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return freeList.allocate ( size );
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}
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void * dbChannelIO::operator new ( size_t ) // X aCC 361
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{
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// The HPUX compiler seems to require this even though no code
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// calls it directly
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throw std::logic_error ( "why is the compiler calling private operator new" );
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}
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#ifdef CXX_PLACEMENT_DELETE
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void dbChannelIO::operator delete ( void *pCadaver,
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tsFreeList < dbChannelIO > & freeList )
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{
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freeList.release ( pCadaver );
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}
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#endif
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void dbChannelIO::operator delete ( void * )
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{
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// Visual C++ .net appears to require operator delete if
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// placement operator delete is defined? I smell a ms rat
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// because if I declare placement new and delete, but
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// comment out the placement delete definition there are
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// no undefined symbols.
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errlogPrintf ( "%s:%d this compiler is confused about placement delete - memory was probably leaked",
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__FILE__, __LINE__ );
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}
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