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sortix--sortix/sortix/refcount.cpp

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/*******************************************************************************
COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2012.
This file is part of Sortix.
Sortix 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 3 of the License, or (at your option) any later
version.
Sortix 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
Sortix. If not, see <http://www.gnu.org/licenses/>.
refcount.cpp
A class that implements reference counting.
*******************************************************************************/
#include "platform.h"
#include "refcount.h"
namespace Sortix
{
Refcounted::Refcounted()
{
refcount = 1;
}
Refcounted::~Refcounted()
{
// It's OK to be deleted if our refcount is 1, it won't mess with any
// other owners that might need us.
ASSERT(refcount <= 1);
}
void Refcounted::Refer()
{
refcount++;
}
void Refcounted::Unref()
{
if ( !--refcount ) { delete this; }
}
}