Stage 1 reorganization
Directory moves. src/RTEMS/ => src/libCom/RTEMS/ src/as/ => src/ioc/as/ src/bpt/ => src/ioc/bpt/ src/ca/ => src/ca/client/ src/cap5/ => src/ca/client/perl/ src/cas/ => src/ca/legacy/pcas/ src/catools/ => src/ca/client/tools/ src/db/ => src/ioc/db/ src/dbStatic/ => src/ioc/dbStatic/ src/dbtools/ => src/ioc/dbtemplate/ src/dev/softDev/ => src/std/dev/ src/dev/testDev/ => src/std/test/ src/excas/ => src/ca/legacy/pcas/ex/ src/gdd/ => src/ca/legacy/gdd/ src/makeBaseApp/ => src/template/base/ src/makeBaseExt/ => src/template/ext/ src/misc/ => src/ioc/misc/ src/rec/ => src/std/rec/ src/registry/ => src/ioc/registry/ src/rsrv/ => src/ioc/rsrv/ src/softIoc/ => src/std/softIoc/ src/toolsComm/ => src/libCom/tools/
This commit is contained in:
Michael Davidsaver
committed by
Andrew Johnson
Andrew Johnson
parent
4a18db9f99
commit
2a36a3906d
243
src/ioc/db/dbChannelIO.cpp
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243
src/ioc/db/dbChannelIO.cpp
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/*************************************************************************\
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* Copyright (c) 2009 UChicago Argonne LLC, 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 is 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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* $Revision-Id$
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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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#include "errlog.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 (
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epicsMutex & mutexIn, cacChannelNotify & notify,
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const dbAddr & addrIn, dbContext & serviceIO ) :
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cacChannel ( notify ), mutex ( mutexIn ), serviceIO ( serviceIO ),
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addr ( addrIn )
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{
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unsigned bufLen = dbNameSizeOfPV ( & this->addr ) + 1;
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this->pNameStr.reset ( new char [ bufLen ] );
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dbNameOfPV ( & this->addr, this->pNameStr.get (), bufLen );
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}
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void dbChannelIO::initiateConnect ( epicsGuard < epicsMutex > & guard )
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{
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guard.assertIdenticalMutex ( this->mutex );
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this->notify().connectNotify ( guard );
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}
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dbChannelIO::~dbChannelIO ()
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{
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}
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void dbChannelIO::destructor ( epicsGuard < epicsMutex > & guard )
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{
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guard.assertIdenticalMutex ( this->mutex );
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this->serviceIO.destroyAllIO ( guard, *this );
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this->~dbChannelIO ();
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}
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void dbChannelIO::destroy (
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epicsGuard < epicsMutex > & guard )
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{
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guard.assertIdenticalMutex ( this->mutex );
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this->serviceIO.destroyChannel ( guard, *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 (
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epicsGuard < epicsMutex > & guard, unsigned type,
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unsigned long count, cacReadNotify & notify, ioid * )
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{
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guard.assertIdenticalMutex ( this->mutex );
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this->serviceIO.callReadNotify ( guard, 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 (
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epicsGuard < epicsMutex > & guard, unsigned type,
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unsigned long count, const void *pValue )
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{
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epicsGuardRelease < epicsMutex > unguard ( guard );
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if ( count > LONG_MAX ) {
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throw outOfBounds();
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}
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int status = db_put_field ( &this->addr, type, pValue,
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static_cast <long> (count) );
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if ( status ) {
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throw std::logic_error (
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"db_put_field() completed unsuccessfully" );
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}
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}
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cacChannel::ioStatus dbChannelIO::write (
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epicsGuard < epicsMutex > & guard, unsigned type,
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unsigned long count, const void * pValue,
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cacWriteNotify & notify, ioid * pId )
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{
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guard.assertIdenticalMutex ( this->mutex );
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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 (
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guard, *this, this->addr,
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type, count, pValue, notify, pId );
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return iosAsynch;
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}
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void dbChannelIO::subscribe (
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epicsGuard < epicsMutex > & guard, unsigned type, unsigned long count,
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unsigned mask, cacStateNotify & notify, ioid * pId )
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{
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guard.assertIdenticalMutex ( this->mutex );
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this->serviceIO.subscribe (
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guard, this->addr, *this,
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type, count, mask, notify, pId );
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}
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void dbChannelIO::ioCancel (
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epicsGuard < epicsMutex > & mutualExclusionGuard,
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const ioid & id )
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{
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mutualExclusionGuard.assertIdenticalMutex ( this->mutex );
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this->serviceIO.ioCancel ( mutualExclusionGuard, *this, id );
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}
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void dbChannelIO::ioShow (
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epicsGuard < epicsMutex > & guard,
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const ioid & id, unsigned level ) const
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{
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guard.assertIdenticalMutex ( this->mutex );
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this->serviceIO.ioShow ( guard, id, level );
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}
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void dbChannelIO::show (
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epicsGuard < epicsMutex > & guard, unsigned level ) const
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{
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guard.assertIdenticalMutex ( this->mutex );
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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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unsigned long dbChannelIO::nativeElementCount (
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epicsGuard < epicsMutex > & guard ) const
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{
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guard.assertIdenticalMutex ( this->mutex );
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if ( this->addr.no_elements >= 0u ) {
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return static_cast < unsigned long > ( this->addr.no_elements );
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}
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return 0u;
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}
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// hopefully to be eventually phased out
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const char * dbChannelIO::pName (
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epicsGuard < epicsMutex > & guard ) const throw ()
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{
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guard.assertIdenticalMutex ( this->mutex );
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return this->pNameStr.get ();
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}
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unsigned dbChannelIO::getName (
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epicsGuard < epicsMutex > &,
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char * pBuf, unsigned bufLen ) const throw ()
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{
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return dbNameOfPV ( & this->addr, pBuf, bufLen );
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}
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short dbChannelIO::nativeType (
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epicsGuard < epicsMutex > & guard ) const
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{
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guard.assertIdenticalMutex ( this->mutex );
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return this->addr.dbr_field_type;
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}
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void * dbChannelIO::operator new ( size_t size,
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tsFreeList < dbChannelIO, 256, epicsMutexNOOP > & 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, 256, epicsMutexNOOP > & 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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void dbChannelIO::flush (
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epicsGuard < epicsMutex > & )
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{
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}
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unsigned dbChannelIO::requestMessageBytesPending (
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epicsGuard < epicsMutex > & )
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{
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return 0u;
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}
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