AbstractPrivateData.h
/* -*- mode: c++; indent-tabs-mode: nil -*- */
/*
AbstractPrivateData.h
abstract class for private data in objects
Qore Programming Language
Copyright (C) 2003 - 2021 Qore Technologies, s.r.o.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
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and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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DEALINGS IN THE SOFTWARE.
Note that the Qore library is released under a choice of three open-source
licenses: MIT (as above), LGPL 2+, or GPL 2+; see README-LICENSE for more
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*/
#ifndef _QORE_ABSTRACTPRIVATEDATA_H
#define _QORE_ABSTRACTPRIVATEDATA_H
#include <qore/QoreReferenceCounter.h>
class AbstractPrivateData : public QoreReferenceCounter {
protected:
DLLLOCAL virtual ~AbstractPrivateData() {}
public:
DLLLOCAL void ref() const {
ROreference();
}
DLLLOCAL virtual void deref(ExceptionSink* xsink) {
if (ROdereference())
delete this;
}
DLLLOCAL virtual void deref() {
if (ROdereference())
delete this;
}
};
#endif // _QORE_ABSTRACTPRIVATEDATA_H
AbstractPrivateData
the base class for all data to be used as private data of Qore objects
Definition: AbstractPrivateData.h:44
QoreReferenceCounter::ROdereference
DLLEXPORT bool ROdereference() const
atomically decrements the reference count
AbstractPrivateData::~AbstractPrivateData
virtual DLLLOCAL ~AbstractPrivateData()
as these objects are reference counted, the destructor should be called only when the reference count...
Definition: AbstractPrivateData.h:47
QoreReferenceCounter
provides atomic reference counting to Qore objects
Definition: QoreReferenceCounter.h:44
AbstractPrivateData::ref
DLLLOCAL void ref() const
increments the reference count of the object
Definition: AbstractPrivateData.h:51
AbstractPrivateData::deref
virtual DLLLOCAL void deref()
decrements the reference count of the object without the possibility of throwing a Qore-language exce...
Definition: AbstractPrivateData.h:65
ExceptionSink
container for holding Qore-language exception information and also for registering a "thread_exit" ca...
Definition: ExceptionSink.h:48
QoreReferenceCounter::ROreference
DLLEXPORT void ROreference() const
atomically increments the reference count