/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#include "memory/cardTableRS.hpp"
#include "memory/defNewGeneration.hpp"
// Methods of protected closure types
template <class T>
#ifdef ASSERT
{
// We never expect to see a null reference being processed
// as a weak reference.
}
#endif // ASSERT
// Card marking is trickier for weak refs.
// This oop is a 'next' field which was filled in while we
// were discovering weak references. While we might not need
// to take a special action to keep this reference alive, we
// will need to dirty a card as the field was modified.
//
// Alternatively, we could create a method which iterates through
// each generation, allowing them in turn to examine the modified
// field.
//
// We could check that p is also in an older generation, but
// dirty cards in the youngest gen are never scanned, so the
// extra check probably isn't worthwhile.
}
}
template <class T>
#ifdef ASSERT
{
// We never expect to see a null reference being processed
// as a weak reference.
}
#endif // ASSERT
// Optimized for Defnew generation if it's the youngest generation:
// we set a younger_gen card if we have an older->youngest
// generation pointer.
}
}
#endif // SHARE_VM_MEMORY_DEFNEWGENERATION_INLINE_HPP