mirror of https://github.com/Icinga/icinga2.git
125 lines
3.3 KiB
C++
125 lines
3.3 KiB
C++
/******************************************************************************
|
|
* Icinga 2 *
|
|
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
|
|
* *
|
|
* This program is free software; you can redistribute it and/or *
|
|
* modify it under the terms of the GNU General Public License *
|
|
* as published by the Free Software Foundation; either version 2 *
|
|
* of the License, or (at your option) any later version. *
|
|
* *
|
|
* This program is distributed in the hope that it will be useful, *
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
|
|
* GNU General Public License for more details. *
|
|
* *
|
|
* You should have received a copy of the GNU General Public License *
|
|
* along with this program; if not, write to the Free Software Foundation *
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
|
|
******************************************************************************/
|
|
|
|
#ifndef OBJECT_H
|
|
#define OBJECT_H
|
|
|
|
namespace icinga
|
|
{
|
|
|
|
class SharedPtrHolder;
|
|
|
|
/**
|
|
* Base class for all heap-allocated objects. At least one of its methods
|
|
* has to be virtual for RTTI to work.
|
|
*
|
|
* @ingroup base
|
|
*/
|
|
class I2_BASE_API Object : public enable_shared_from_this<Object>, public boost::signals::trackable
|
|
{
|
|
public:
|
|
typedef shared_ptr<Object> Ptr;
|
|
typedef weak_ptr<Object> WeakPtr;
|
|
|
|
void Hold(void);
|
|
static void ClearHeldObjects(void);
|
|
|
|
/**
|
|
* Holds a shared pointer and provides support for implicit upcasts.
|
|
*/
|
|
class SharedPtrHolder
|
|
{
|
|
public:
|
|
explicit SharedPtrHolder(const Object::Ptr& object)
|
|
: m_Object(object)
|
|
{ }
|
|
|
|
template<typename T>
|
|
operator shared_ptr<T>(void) const
|
|
{
|
|
#ifdef _DEBUG
|
|
shared_ptr<T> other = dynamic_pointer_cast<T>(m_Object);
|
|
assert(other);
|
|
#else /* _DEBUG */
|
|
shared_ptr<T> other = static_pointer_cast<T>(m_Object);
|
|
#endif /* _DEBUG */
|
|
|
|
return other;
|
|
}
|
|
|
|
template<typename T>
|
|
operator weak_ptr<T>(void) const
|
|
{
|
|
return static_cast<shared_ptr<T> >(*this);
|
|
}
|
|
|
|
private:
|
|
Object::Ptr m_Object;
|
|
};
|
|
|
|
SharedPtrHolder GetSelf(void);
|
|
|
|
#ifdef _DEBUG
|
|
static int GetAliveObjects(void);
|
|
static void PrintMemoryProfile(void);
|
|
#endif /* _DEBUG */
|
|
|
|
protected:
|
|
Object(void);
|
|
virtual ~Object(void);
|
|
|
|
private:
|
|
Object(const Object& other);
|
|
Object operator=(const Object& rhs);
|
|
|
|
static mutex m_Mutex;
|
|
static vector<Object::Ptr> m_HeldObjects;
|
|
#ifdef _DEBUG
|
|
static set<Object *> m_AliveObjects;
|
|
#endif /* _DEBUG */
|
|
};
|
|
|
|
/**
|
|
* Compares a weak pointer with a raw pointer.
|
|
*/
|
|
template<class T>
|
|
struct WeakPtrEqual
|
|
{
|
|
private:
|
|
const void *m_Ref;
|
|
|
|
public:
|
|
WeakPtrEqual(const void *ref) : m_Ref(ref) { }
|
|
|
|
/**
|
|
* Compares the two pointers.
|
|
*
|
|
* @param wref The weak pointer.
|
|
* @returns true if the pointers point to the same object, false otherwise.
|
|
*/
|
|
bool operator()(const weak_ptr<T>& wref) const
|
|
{
|
|
return (wref.lock().get() == (const T *)m_Ref);
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
#endif /* OBJECT_H */
|