src/share/vm/gc_implementation/concurrentMarkSweep/promotionInfo.cpp

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   5  * This code is free software; you can redistribute it and/or modify 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 "incls/_precompiled.incl"
  26 # include "incls/_promotionInfo.cpp.incl"



  27 
  28 /////////////////////////////////////////////////////////////////////////
  29 //// PromotionInfo
  30 /////////////////////////////////////////////////////////////////////////
  31 
  32 
  33 //////////////////////////////////////////////////////////////////////////////
  34 // We go over the list of promoted objects, removing each from the list,
  35 // and applying the closure (this may, in turn, add more elements to
  36 // the tail of the promoted list, and these newly added objects will
  37 // also be processed) until the list is empty.
  38 // To aid verification and debugging, in the non-product builds
  39 // we actually forward _promoHead each time we process a promoted oop.
  40 // Note that this is not necessary in general (i.e. when we don't need to
  41 // call PromotionInfo::verify()) because oop_iterate can only add to the
  42 // end of _promoTail, and never needs to look at _promoHead.
  43 
  44 #define PROMOTED_OOPS_ITERATE_DEFN(OopClosureType, nv_suffix)               \
  45                                                                             \
  46 void PromotionInfo::promoted_oops_iterate##nv_suffix(OopClosureType* cl) {  \




   5  * This code is free software; you can redistribute it and/or modify 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_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp"
  27 #include "gc_implementation/concurrentMarkSweep/promotionInfo.hpp"
  28 #include "oops/markOop.inline.hpp"
  29 #include "oops/oop.inline.hpp"
  30 
  31 /////////////////////////////////////////////////////////////////////////
  32 //// PromotionInfo
  33 /////////////////////////////////////////////////////////////////////////
  34 
  35 
  36 //////////////////////////////////////////////////////////////////////////////
  37 // We go over the list of promoted objects, removing each from the list,
  38 // and applying the closure (this may, in turn, add more elements to
  39 // the tail of the promoted list, and these newly added objects will
  40 // also be processed) until the list is empty.
  41 // To aid verification and debugging, in the non-product builds
  42 // we actually forward _promoHead each time we process a promoted oop.
  43 // Note that this is not necessary in general (i.e. when we don't need to
  44 // call PromotionInfo::verify()) because oop_iterate can only add to the
  45 // end of _promoTail, and never needs to look at _promoHead.
  46 
  47 #define PROMOTED_OOPS_ITERATE_DEFN(OopClosureType, nv_suffix)               \
  48                                                                             \
  49 void PromotionInfo::promoted_oops_iterate##nv_suffix(OopClosureType* cl) {  \