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/*
* This source file is part of libRocket, the HTML/CSS Interface Middleware
*
* For the latest information, see http://www.librocket.com
*
* Copyright (c) 2008-2010 CodePoint Ltd, Shift Technology Ltd
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, 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
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
#include "precompiled.h"
#include "../../Include/Rocket/Core/ReferenceCountable.h"
namespace Rocket {
namespace Core {
static int num_outstanding_objects = 0;
// Constructor.
ReferenceCountable::ReferenceCountable(int initial_count)
{
reference_count = initial_count;
++num_outstanding_objects;
}
// Destructor. The reference count must be 0 when this is invoked.
ReferenceCountable::~ReferenceCountable()
{
ROCKET_ASSERT(reference_count == 0);
--num_outstanding_objects;
}
// Returns the number of references outstanding against this object.
int ReferenceCountable::GetReferenceCount()
{
return reference_count;
}
// Adds a reference to the object.
void ReferenceCountable::AddReference()
{
reference_count++;
if (reference_count == 1)
{
OnReferenceActivate();
}
}
// Removes a reference from the object.
void ReferenceCountable::RemoveReference()
{
ROCKET_ASSERT(reference_count > 0);
reference_count--;
if (reference_count == 0)
{
OnReferenceDeactivate();
}
}
ReferenceCountable& ReferenceCountable::operator=(const ReferenceCountable& /*copy*/)
{
ROCKET_ERRORMSG("Attempting to copy a reference counted object. This is not advisable.");
return *this;
}
// If any reference countable objects are still allocated, this function will write a leak report to the log.
void ReferenceCountable::DumpLeakReport()
{
if (num_outstanding_objects > 0)
Log::Message(Log::LT_WARNING, "%d %s still allocated.", num_outstanding_objects, num_outstanding_objects == 1 ? "object" : "objects");
}
// A hook method called when the reference count climbs from 0.
void ReferenceCountable::OnReferenceActivate()
{
}
// A hook method called when the reference count drops to 0.
void ReferenceCountable::OnReferenceDeactivate()
{
}
}
}
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