src/share/vm/gc_implementation/parallelScavenge/psCompactionManager.inline.hpp

Thu, 22 Sep 2011 10:57:37 -0700

author
johnc
date
Thu, 22 Sep 2011 10:57:37 -0700
changeset 3175
4dfb2df418f2
parent 2314
f95d63e2154a
child 6876
710a3c8b516e
permissions
-rw-r--r--

6484982: G1: process references during evacuation pauses
Summary: G1 now uses two reference processors - one is used by concurrent marking and the other is used by STW GCs (both full and incremental evacuation pauses). In an evacuation pause, the reference processor is embedded into the closures used to scan objects. Doing so causes causes reference objects to be 'discovered' by the reference processor. At the end of the evacuation pause, these discovered reference objects are processed - preserving (and copying) referent objects (and their reachable graphs) as appropriate.
Reviewed-by: ysr, jwilhelm, brutisso, stefank, tonyp

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    25 #ifndef SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSCOMPACTIONMANAGER_INLINE_HPP
    26 #define SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSCOMPACTIONMANAGER_INLINE_HPP
    28 #include "gc_implementation/parallelScavenge/psCompactionManager.hpp"
    29 #include "gc_implementation/parallelScavenge/psParallelCompact.hpp"
    31 void ParCompactionManager::push_objarray(oop obj, size_t index)
    32 {
    33   ObjArrayTask task(obj, index);
    34   assert(task.is_valid(), "bad ObjArrayTask");
    35   _objarray_stack.push(task);
    36 }
    38 void ParCompactionManager::push_region(size_t index)
    39 {
    40 #ifdef ASSERT
    41   const ParallelCompactData& sd = PSParallelCompact::summary_data();
    42   ParallelCompactData::RegionData* const region_ptr = sd.region(index);
    43   assert(region_ptr->claimed(), "must be claimed");
    44   assert(region_ptr->_pushed++ == 0, "should only be pushed once");
    45 #endif
    46   region_stack()->push(index);
    47 }
    49 #endif // SHARE_VM_GC_IMPLEMENTATION_PARALLELSCAVENGE_PSCOMPACTIONMANAGER_INLINE_HPP

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