jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/g1/heapRegion.inline.hpp@4dfb2df418f2

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

     1 /*

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     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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    13  * accompanied this code).

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    25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGION_INLINE_HPP

    26 #define SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGION_INLINE_HPP

    28 inline HeapWord* G1OffsetTableContigSpace::allocate(size_t size) {

    29   HeapWord* res = ContiguousSpace::allocate(size);

    30   if (res != NULL) {

    31     _offsets.alloc_block(res, size);

    32   }

    33   return res;

    34 }

    36 // Because of the requirement of keeping "_offsets" up to date with the

    37 // allocations, we sequentialize these with a lock.  Therefore, best if

    38 // this is used for larger LAB allocations only.

    39 inline HeapWord* G1OffsetTableContigSpace::par_allocate(size_t size) {

    40   MutexLocker x(&_par_alloc_lock);

    41   // Given that we take the lock no need to use par_allocate() here.

    42   HeapWord* res = ContiguousSpace::allocate(size);

    43   if (res != NULL) {

    44     _offsets.alloc_block(res, size);

    45   }

    46   return res;

    47 }

    49 inline HeapWord* G1OffsetTableContigSpace::block_start(const void* p) {

    50   return _offsets.block_start(p);

    51 }

    53 inline HeapWord*

    54 G1OffsetTableContigSpace::block_start_const(const void* p) const {

    55   return _offsets.block_start_const(p);

    56 }

    58 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGION_INLINE_HPP

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/gc_implementation/g1/heapRegion.inline.hpp@4dfb2df418f2

src/share/vm/gc_implementation/g1/heapRegion.inline.hpp