138 lines
2.8 KiB
C
138 lines
2.8 KiB
C
/*
|
|
* $Id$
|
|
*
|
|
* Author Jeffrey O. Hill
|
|
* johill@lanl.gov
|
|
* 505 665 1831
|
|
*
|
|
* Experimental Physics and Industrial Control System (EPICS)
|
|
*
|
|
* Copyright 1991, the Regents of the University of California,
|
|
* and the University of Chicago Board of Governors.
|
|
*
|
|
* This software was produced under U.S. Government contracts:
|
|
* (W-7405-ENG-36) at the Los Alamos National Laboratory,
|
|
* and (W-31-109-ENG-38) at Argonne National Laboratory.
|
|
*
|
|
* Initial development by:
|
|
* The Controls and Automation Group (AT-8)
|
|
* Ground Test Accelerator
|
|
* Accelerator Technology Division
|
|
* Los Alamos National Laboratory
|
|
*
|
|
* Co-developed with
|
|
* The Controls and Computing Group
|
|
* Accelerator Systems Division
|
|
* Advanced Photon Source
|
|
* Argonne National Laboratory
|
|
*
|
|
*
|
|
* History
|
|
* $Log$
|
|
*
|
|
*/
|
|
|
|
|
|
#ifndef caServerIIL_h
|
|
#define caServerIIL_h
|
|
|
|
//
|
|
// caServerI::lookupRes()
|
|
//
|
|
inline casRes *caServerI::lookupRes(const caResId &idIn, casResType type)
|
|
{
|
|
uintId id(idIn);
|
|
casRes *pRes;
|
|
|
|
pRes = this->uintResTable<casRes>::lookup(id);
|
|
if (pRes) {
|
|
if (pRes->resourceType()!=type) {
|
|
pRes = 0;
|
|
}
|
|
}
|
|
return pRes;
|
|
}
|
|
|
|
//
|
|
// find the channel associated with a resource id
|
|
//
|
|
inline casChannelI *caServerI::resIdToChannel(const caResId &id)
|
|
{
|
|
casRes *pRes;
|
|
|
|
pRes = this->lookupRes(id, casChanT);
|
|
|
|
//
|
|
// safe to cast because we have checked the type code above
|
|
// (and we know that casChannelI derived from casRes)
|
|
//
|
|
return (casChannelI *) pRes;
|
|
}
|
|
|
|
//
|
|
// caServerI::pvExistTestPossible()
|
|
//
|
|
inline aitBool caServerI::pvExistTestPossible()
|
|
{
|
|
if (this->nExistTestInProg < this->maxSimultaneousIO) {
|
|
return aitTrue;
|
|
}
|
|
return aitFalse;
|
|
}
|
|
|
|
//
|
|
// find the channel associated with a resource id
|
|
//
|
|
inline caStatus caServerI::pvExistTest(const casCtx &ctxIn,
|
|
const char *pPVName, gdd &canonicalPVName)
|
|
{
|
|
if (!pvExistTestPossible()) {
|
|
return S_cas_ioBlocked;
|
|
}
|
|
this->nExistTestInProg++;
|
|
return (*this)->pvExistTest(ctxIn, pPVName, canonicalPVName);
|
|
}
|
|
|
|
//
|
|
// caServerI::pvExistTestCompletion()
|
|
//
|
|
inline void caServerI::pvExistTestCompletion()
|
|
{
|
|
this->nExistTestInProg--;
|
|
this->ioBlockedList::signal();
|
|
}
|
|
|
|
|
|
//
|
|
// install a PV into the server
|
|
//
|
|
inline void caServerI::installPV (casPVI &pv)
|
|
{
|
|
int resLibStatus;
|
|
|
|
this->lock ();
|
|
this->pvCount++;
|
|
resLibStatus = this->stringResTbl.add (pv);
|
|
this->unlock ();
|
|
assert (resLibStatus==0);
|
|
}
|
|
|
|
//
|
|
// remove PV from the server
|
|
//
|
|
inline void caServerI::removePV(casPVI &pv)
|
|
{
|
|
casPVI *pPV;
|
|
|
|
this->lock();
|
|
casVerify (this->pvCount>=1u);
|
|
this->pvCount--;
|
|
pPV = this->stringResTbl.remove (pv);
|
|
this->unlock();
|
|
casVerify (pPV!=0);
|
|
casVerify (pPV==&pv);
|
|
}
|
|
|
|
#endif // caServerIIL_h
|
|
|