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/_cmsPermGen.cpp.incl"











  27 
  28 CMSPermGen::CMSPermGen(ReservedSpace rs, size_t initial_byte_size,
  29              CardTableRS* ct,
  30              FreeBlockDictionary::DictionaryChoice dictionaryChoice) {
  31   CMSPermGenGen* g =
  32     new CMSPermGenGen(rs, initial_byte_size, -1, ct);
  33   if (g == NULL) {
  34     vm_exit_during_initialization("Could not allocate a CompactingPermGen");
  35   }
  36 
  37   g->initialize_performance_counters();
  38 
  39   _gen = g;
  40 }
  41 
  42 HeapWord* CMSPermGen::mem_allocate(size_t size) {
  43   Mutex* lock = _gen->freelistLock();
  44   bool lock_owned = lock->owned_by_self();
  45   if (lock_owned) {
  46     MutexUnlocker mul(lock);

   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/cmsPermGen.hpp"
  27 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.inline.hpp"
  28 #include "gc_implementation/shared/cSpaceCounters.hpp"
  29 #include "gc_interface/collectedHeap.inline.hpp"
  30 #include "memory/blockOffsetTable.inline.hpp"
  31 #include "memory/compactPermGen.hpp"
  32 #include "memory/genCollectedHeap.hpp"
  33 #include "memory/generation.inline.hpp"
  34 #include "memory/permGen.hpp"
  35 #include "memory/universe.hpp"
  36 #include "oops/oop.inline.hpp"
  37 #include "runtime/java.hpp"
  38 
  39 CMSPermGen::CMSPermGen(ReservedSpace rs, size_t initial_byte_size,
  40              CardTableRS* ct,
  41              FreeBlockDictionary::DictionaryChoice dictionaryChoice) {
  42   CMSPermGenGen* g =
  43     new CMSPermGenGen(rs, initial_byte_size, -1, ct);
  44   if (g == NULL) {
  45     vm_exit_during_initialization("Could not allocate a CompactingPermGen");
  46   }
  47 
  48   g->initialize_performance_counters();
  49 
  50   _gen = g;
  51 }
  52 
  53 HeapWord* CMSPermGen::mem_allocate(size_t size) {
  54   Mutex* lock = _gen->freelistLock();
  55   bool lock_owned = lock->owned_by_self();
  56   if (lock_owned) {
  57     MutexUnlocker mul(lock);