src/share/vm/gc_implementation/parNew/parCardTableModRefBS.cpp
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src/share/vm/gc_implementation/parNew/parCardTableModRefBS.cpp

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  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_interface/collectedHeap.hpp"
  27 #include "memory/allocation.inline.hpp"
  28 #include "memory/cardTableModRefBS.hpp"
  29 #include "memory/cardTableRS.hpp"
  30 #include "memory/genCollectedHeap.hpp"
  31 #include "memory/space.inline.hpp"

  32 #include "oops/oop.inline.hpp"
  33 #include "runtime/java.hpp"
  34 #include "runtime/mutexLocker.hpp"
  35 #include "runtime/orderAccess.inline.hpp"
  36 #include "runtime/virtualspace.hpp"
  37 #include "runtime/vmThread.hpp"
  38 
  39 void CardTableModRefBS::non_clean_card_iterate_parallel_work(Space* sp, MemRegion mr,
  40                                                              OopsInGenClosure* cl,
  41                                                              CardTableRS* ct,
  42                                                              int n_threads) {
  43   assert(n_threads > 0, "Error: expected n_threads > 0");
  44   assert((n_threads == 1 && ParallelGCThreads == 0) ||
  45          n_threads <= (int)ParallelGCThreads,
  46          "# worker threads != # requested!");
  47   assert(!Thread::current()->is_VM_thread() || (n_threads == 1), "There is only 1 VM thread");
  48   assert(UseDynamicNumberOfGCThreads ||
  49          !FLAG_IS_DEFAULT(ParallelGCThreads) ||
  50          n_threads == (int)ParallelGCThreads,
  51          "# worker threads != # requested!");
  52   // Make sure the LNC array is valid for the space.
  53   jbyte**   lowest_non_clean;
  54   uintptr_t lowest_non_clean_base_chunk_index;
  55   size_t    lowest_non_clean_chunk_size;
  56   get_LNC_array_for_space(sp, lowest_non_clean,




  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_interface/collectedHeap.hpp"
  27 #include "memory/allocation.inline.hpp"
  28 #include "memory/cardTableModRefBS.hpp"
  29 #include "memory/cardTableRS.hpp"
  30 #include "memory/genCollectedHeap.hpp"
  31 #include "memory/space.inline.hpp"
  32 #include "memory/virtualspace.hpp"
  33 #include "oops/oop.inline.hpp"
  34 #include "runtime/java.hpp"
  35 #include "runtime/mutexLocker.hpp"
  36 #include "runtime/orderAccess.inline.hpp"

  37 #include "runtime/vmThread.hpp"
  38 
  39 void CardTableModRefBS::non_clean_card_iterate_parallel_work(Space* sp, MemRegion mr,
  40                                                              OopsInGenClosure* cl,
  41                                                              CardTableRS* ct,
  42                                                              int n_threads) {
  43   assert(n_threads > 0, "Error: expected n_threads > 0");
  44   assert((n_threads == 1 && ParallelGCThreads == 0) ||
  45          n_threads <= (int)ParallelGCThreads,
  46          "# worker threads != # requested!");
  47   assert(!Thread::current()->is_VM_thread() || (n_threads == 1), "There is only 1 VM thread");
  48   assert(UseDynamicNumberOfGCThreads ||
  49          !FLAG_IS_DEFAULT(ParallelGCThreads) ||
  50          n_threads == (int)ParallelGCThreads,
  51          "# worker threads != # requested!");
  52   // Make sure the LNC array is valid for the space.
  53   jbyte**   lowest_non_clean;
  54   uintptr_t lowest_non_clean_base_chunk_index;
  55   size_t    lowest_non_clean_chunk_size;
  56   get_LNC_array_for_space(sp, lowest_non_clean,


src/share/vm/gc_implementation/parNew/parCardTableModRefBS.cpp
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