Files
epics-base/src/ca/cacChannel.cpp
2004-10-08 15:44:44 +00:00

121 lines
3.2 KiB
C++

/*************************************************************************\
* Copyright (c) 2002 The University of Chicago, as Operator of Argonne
* National Laboratory.
* Copyright (c) 2002 The Regents of the University of California, as
* Operator of Los Alamos National Laboratory.
* EPICS BASE Versions 3.13.7
* and higher are distributed subject to a Software License Agreement found
* in file LICENSE that is included with this distribution.
\*************************************************************************/
/*
*
* L O S A L A M O S
* Los Alamos National Laboratory
* Los Alamos, New Mexico 87545
*
* Copyright, 1986, The Regents of the University of California.
*
* Author: Jeff Hill
*/
#include <stdexcept>
#include <float.h>
#define epicsAssertAuthor "Jeff Hill johill@lanl.gov"
#include "errlog.h"
#define epicsExportSharedSymbols
#include "iocinf.h"
#include "localHostName.h"
#include "cacIO.h"
const cacChannel::priLev cacChannel::priorityMax = 99u;
const cacChannel::priLev cacChannel::priorityMin = 0u;
const cacChannel::priLev cacChannel::priorityDefault = priorityMin;
const cacChannel::priLev cacChannel::priorityLinksDB = priorityMax;
const cacChannel::priLev cacChannel::priorityArchive = ( priorityMax - priorityMin ) / 2;
const cacChannel::priLev cacChannel::priorityOPI = priorityMin;
cacChannel::~cacChannel ()
{
}
caAccessRights cacChannel::accessRights (
epicsGuard < epicsMutex > & ) const
{
static caAccessRights ar ( true, true );
return ar;
}
unsigned cacChannel::searchAttempts (
epicsGuard < epicsMutex > & ) const
{
return 0u;
}
double cacChannel::beaconPeriod (
epicsGuard < epicsMutex > & ) const
{
return - DBL_MAX;
}
double cacChannel::receiveWatchdogDelay (
epicsGuard < epicsMutex > & ) const
{
return - DBL_MAX;
}
bool cacChannel::ca_v42_ok (
epicsGuard < epicsMutex > & ) const
{
return true;
}
bool cacChannel::connected (
epicsGuard < epicsMutex > & ) const
{
return true;
}
// the default is to assume that it is a locally hosted channel
void cacChannel::hostName (
epicsGuard < epicsMutex > &,
char *pBuf, unsigned bufLength ) const
{
if ( bufLength ) {
epicsSingleton < localHostName >::reference
ref ( localHostNameAtLoadTime.getReference () );
ref->copy ( pBuf, bufLength );
}
}
// deprecated - please do not use
// the default is to assume that it is a locally hosted channel
const char * cacChannel::pHostName (
epicsGuard < epicsMutex > & ) const
{
epicsSingleton < localHostName >::reference
ref ( localHostNameAtLoadTime.getReference () );
return ref->pointer ();
}
void cacChannel::operator delete ( void * )
{
// Visual C++ .net appears to require operator delete if
// placement operator delete is defined? I smell a ms rat
// because if I declare placement new and delete, but
// comment out the placement delete definition there are
// no undefined symbols.
errlogPrintf ( "%s:%d this compiler is confused about placement delete - memory was probably leaked",
__FILE__, __LINE__ );
}
cacContext::~cacContext () {}
cacService::~cacService () {}