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//
// VMime library (http://www.vmime.org)
// Copyright (C) 2002-2005 Vincent Richard <[email protected]>
//
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
//
#include "vmime/types.hpp"
#include "vmime/object.hpp"
#include <algorithm> // std::find
#include <sstream> // std::ostringstream
#include <stdexcept> // std::runtime_error
namespace vmime
{
object::object()
: m_strongCount(0)
{
}
object::object(const object&)
: m_strongCount(0)
{
// Not used
}
object::~object()
{
for (std::vector <utility::weak_ref_base*>::iterator
it = m_weakRefs.begin() ; it != m_weakRefs.end() ; ++it)
{
(*it)->notifyObjectDestroyed();
}
#if VMIME_DEBUG
if (m_strongCount != 0)
{
std::ostringstream oss;
oss << "ERROR: Deleting object and strong count != 0."
<< " (" << __FILE__ << ", line " << __LINE__ << ")" << std::endl;
throw std::runtime_error(oss.str());
}
#endif // VMIME_DEBUG
}
void object::addStrong() const
{
++m_strongCount;
}
void object::addWeak(utility::weak_ref_base* w) const
{
m_weakRefs.push_back(w);
}
void object::releaseStrong() const
{
if (--m_strongCount == 0)
delete this;
}
void object::releaseWeak(utility::weak_ref_base* w) const
{
std::vector <utility::weak_ref_base*>::iterator
it = std::find(m_weakRefs.begin(), m_weakRefs.end(), w);
if (it != m_weakRefs.end())
m_weakRefs.erase(it);
#if VMIME_DEBUG
else
{
std::ostringstream oss;
oss << "ERROR: weak ref does not exist anymore!"
<< " (" << __FILE__ << ", line " << __LINE__ << ")" << std::endl;
throw std::runtime_error(oss.str());
}
#endif // VMIME_DEBUG
}
ref <object> object::thisRef()
{
return ref <object>::fromPtr(this);
}
ref <const object> object::thisRef() const
{
return ref <const object>::fromPtr(this);
}
weak_ref <object> object::thisWeakRef()
{
return weak_ref <object>(thisRef());
}
weak_ref <const object> object::thisWeakRef() const
{
return weak_ref <const object>(thisRef());
}
const int object::getStrongRefCount() const
{
return m_strongCount;
}
const int object::getWeakRefCount() const
{
return static_cast <const int>(m_weakRefs.size());
}
} // vmime
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