137 

   137 

   138   object_space()->initialize(cmr,

   138   object_space()->initialize(cmr,

   139                              SpaceDecorator::Clear,

   139                              SpaceDecorator::Clear,

   140                              SpaceDecorator::Mangle);

   140                              SpaceDecorator::Mangle);

   141 

   141 

   142   _object_mark_sweep = new PSMarkSweepDecorator(_object_space, start_array(), MarkSweepDeadRatio);

   143   _object_mark_sweep = new PSMarkSweepDecorator(_object_space, start_array(), MarkSweepDeadRatio);

   143 

   144 

   145     vm_exit_during_initialization("Could not complete allocation of old generation");

   146     vm_exit_during_initialization("Could not complete allocation of old generation");

   146 

   149 

   147   // Update the start_array

   150   // Update the start_array

   148   start_array()->set_covered_region(cmr);

   151   start_array()->set_covered_region(cmr);

   149 }

   152 }

   150 

   153 

   161 // reserved size is not 0.

   164 // reserved size is not 0.

   162 bool  PSOldGen::is_allocated() {

   165 bool  PSOldGen::is_allocated() {

   163   return virtual_space()->reserved_size() != 0;

   166   return virtual_space()->reserved_size() != 0;

   164 }

   167 }

   165 

   168 

   166 void PSOldGen::precompact() {

   171 void PSOldGen::precompact() {

   167   ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();

   172   ParallelScavengeHeap* heap = ParallelScavengeHeap::heap();

   168 

   173 

   169   // Reset start array first.

   174   // Reset start array first.

   170   start_array()->reset();

   175   start_array()->reset();

   180 }

   185 }

   181 

   186 

   182 void PSOldGen::compact() {

   187 void PSOldGen::compact() {

   183   object_mark_sweep()->compact(ZapUnusedHeapArea);

   188   object_mark_sweep()->compact(ZapUnusedHeapArea);

   184 }

   189 }

   185 

   192 

   186 size_t PSOldGen::contiguous_available() const {

   193 size_t PSOldGen::contiguous_available() const {

   187   return object_space()->free_in_bytes() + virtual_space()->uncommitted_size();

   194   return object_space()->free_in_bytes() + virtual_space()->uncommitted_size();

   188 }

   195 }

   189 

   196