/*
* 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
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#include "gc_implementation/shared/concurrentGCThread.hpp"
// Forward Decl.
class ConcurrentG1Refine;
// The G1 Concurrent Refinement Thread (could be several in the future).
friend class VMStructs;
friend class G1CollectedHeap;
int _worker_id;
int _worker_id_offset;
// The refinement threads collection is linked list. A predecessor can activate a successor
// when the number of the rset update buffer crosses a certain threshold. A successor
// would self-deactivate when the number of the buffers falls below the threshold.
bool _active;
// This thread activation threshold
int _threshold;
// This thread deactivation threshold
void sample_young_list_rs_lengths();
void run_young_rs_sampling();
void wait_for_completed_buffers();
bool is_active();
void activate();
void deactivate();
// For use by G1CollectedHeap, which is a friend.
public:
virtual void run();
// Constructor
int worker_id_offset, int worker_id);
void initialize();
// Printing
void print() const;
// Total virtual time so far.
// Yield for GC
void yield();
// shutdown
void stop();
};
#endif // SHARE_VM_GC_IMPLEMENTATION_G1_CONCURRENTG1REFINETHREAD_HPP