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src/share/vm/gc/g1/g1Allocator.cpp

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rev 8362 : [mq]: hotspot


   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "gc_implementation/g1/g1Allocator.hpp"
  27 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
  28 #include "gc_implementation/g1/g1CollectorPolicy.hpp"
  29 #include "gc_implementation/g1/heapRegion.inline.hpp"
  30 #include "gc_implementation/g1/heapRegionSet.inline.hpp"
  31 
  32 void G1DefaultAllocator::init_mutator_alloc_region() {
  33   assert(_mutator_alloc_region.get() == NULL, "pre-condition");
  34   _mutator_alloc_region.init();
  35 }
  36 
  37 void G1DefaultAllocator::release_mutator_alloc_region() {
  38   _mutator_alloc_region.release();
  39   assert(_mutator_alloc_region.get() == NULL, "post-condition");
  40 }
  41 
  42 void G1Allocator::reuse_retained_old_region(EvacuationInfo& evacuation_info,
  43                                             OldGCAllocRegion* old,
  44                                             HeapRegion** retained_old) {
  45   HeapRegion* retained_region = *retained_old;
  46   *retained_old = NULL;
  47 
  48   // We will discard the current GC alloc region if:
  49   // a) it's in the collection set (it can happen!),
  50   // b) it's already full (no point in using it),




   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "gc/g1/g1Allocator.hpp"
  27 #include "gc/g1/g1CollectedHeap.inline.hpp"
  28 #include "gc/g1/g1CollectorPolicy.hpp"
  29 #include "gc/g1/heapRegion.inline.hpp"
  30 #include "gc/g1/heapRegionSet.inline.hpp"
  31 
  32 void G1DefaultAllocator::init_mutator_alloc_region() {
  33   assert(_mutator_alloc_region.get() == NULL, "pre-condition");
  34   _mutator_alloc_region.init();
  35 }
  36 
  37 void G1DefaultAllocator::release_mutator_alloc_region() {
  38   _mutator_alloc_region.release();
  39   assert(_mutator_alloc_region.get() == NULL, "post-condition");
  40 }
  41 
  42 void G1Allocator::reuse_retained_old_region(EvacuationInfo& evacuation_info,
  43                                             OldGCAllocRegion* old,
  44                                             HeapRegion** retained_old) {
  45   HeapRegion* retained_region = *retained_old;
  46   *retained_old = NULL;
  47 
  48   // We will discard the current GC alloc region if:
  49   // a) it's in the collection set (it can happen!),
  50   // b) it's already full (no point in using it),


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