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comparison src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp @ 20295:3f2894c5052e

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8048112: G1 Full GC needs to support the case when the very first region is not available Summary: Refactor preparation for compaction during Full GC so that it lazily initializes the first compaction point. This also avoids problems later when the first region may not be committed. Also reviewed by K. Barrett. Reviewed-by: brutisso
author tschatzl
date Mon, 21 Jul 2014 10:00:31 +0200
parents e0954897238a
children a3953c777565
comparison
equal deleted inserted replaced
20294:dd219eaec9cc 20295:3f2894c5052e
2969 } 2969 }
2970 cur = next; 2970 cur = next;
2971 } 2971 }
2972 } 2972 }
2973 2973
2974 CompactibleSpace* G1CollectedHeap::first_compactible_space() { 2974 HeapRegion* G1CollectedHeap::next_compaction_region(const HeapRegion* from) const {
2975 return n_regions() > 0 ? region_at(0) : NULL; 2975 // We're not using an iterator given that it will wrap around when
2976 } 2976 // it reaches the last region and this is not what we want here.
2977 2977 for (uint index = from->hrs_index() + 1; index < n_regions(); index++) {
2978 HeapRegion* hr = region_at(index);
2979 if (!hr->isHumongous()) {
2980 return hr;
2981 }
2982 }
2983 return NULL;
2984 }
2978 2985
2979 Space* G1CollectedHeap::space_containing(const void* addr) const { 2986 Space* G1CollectedHeap::space_containing(const void* addr) const {
2980 Space* res = heap_region_containing(addr); 2987 Space* res = heap_region_containing(addr);
2981 return res; 2988 return res;
2982 } 2989 }