// ExclusiveHolder.tli
//

#pragma once


#include "ExclusiveHolder.tlh"


template <typename T>
ExclusiveHolder <T>::ExclusiveHolder ()
{
	m_pObject = NULL;
}


template <typename T>
ExclusiveHolder <T>::~ExclusiveHolder ()
{
	LockHolder Lock (this);
	delete m_pObject;
}

template <typename T>
ExclusiveHolder <T>::ExclusiveHolder (T * object)
{
	m_pObject = object;
}


template <typename T>
void ExclusiveHolder <T>::Attach (T * object)
{
	LockHolder Lock (this);

	delete m_pObject;
	m_pObject = object;
}

template <typename T>
T * ExclusiveHolder <T>::Detach ()
{
	LockHolder Lock (this);

	T * old = m_pObject;
	m_pObject = NULL;
	Release ();

	return old;
}


template <typename T>
void ExclusiveHolder <T>::Release ()
{
	LockHolder Lock (this);

	delete m_pObject;
	m_pObject = NULL;
}


template <typename T>
ExclusiveHolder <T> & ExclusiveHolder <T>::operator = (T * object)
{
	Attach (object);
	return *this;
}


template <typename T>
bool ExclusiveHolder <T>::IsEmpty () const
{
	LockHolder Lock (this);

	return (m_pObject == NULL);
}


template <typename T>
ExclusiveHolder <T>::LockHolder::LockHolder (const ExclusiveHolder <T> *holder)
{
	auto lock = new std::lock_guard < std::recursive_mutex > (holder->m_Mutex);
	m_Lock.reset (lock);
	m_Holder = holder;
}

template <typename T>
ExclusiveHolder <T>::LockHolder::LockHolder (LockHolder && from)
{
	m_Lock.swap (from.m_Lock);
	m_Holder = from.m_Holder;
}


template <typename T>
ExclusiveHolder <T>::LockHolder::~LockHolder ()
{
}


template <typename T>
T * ExclusiveHolder <T>::LockHolder::As ()
{
	return m_Holder->m_pObject;
}


template <typename T>
const T * ExclusiveHolder <T>::LockHolder::As () const
{
	return m_Holder->m_pObject;
}

template <typename T>
template <typename C> C * ExclusiveHolder <T>::LockHolder::AS ()
{
	return m_Holder->m_pObject;
}

template <typename T>
template <typename C> const C * ExclusiveHolder <T>::LockHolder::AS () const
{
	return m_Holder->m_pObject;
}