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comparison src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp @ 20481:c02ec279b062

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8057768: Make heap region region type in G1 HeapRegion explicit Reviewed-by: brutisso, tschatzl
author brutisso
date Tue, 16 Sep 2014 14:27:40 +0200
parents 6701abbc4441
children b840813adfcc
comparison
equal deleted inserted replaced
20478:00448aa81791 20481:c02ec279b062
1662 } 1662 }
1663 1663
1664 // Add the heap region at the head of the non-incremental collection set 1664 // Add the heap region at the head of the non-incremental collection set
1665 void G1CollectorPolicy::add_old_region_to_cset(HeapRegion* hr) { 1665 void G1CollectorPolicy::add_old_region_to_cset(HeapRegion* hr) {
1666 assert(_inc_cset_build_state == Active, "Precondition"); 1666 assert(_inc_cset_build_state == Active, "Precondition");
1667 assert(!hr->is_young(), "non-incremental add of young region"); 1667 assert(hr->is_old(), "the region should be old");
1668 1668
1669 assert(!hr->in_collection_set(), "should not already be in the CSet"); 1669 assert(!hr->in_collection_set(), "should not already be in the CSet");
1670 hr->set_in_collection_set(true); 1670 hr->set_in_collection_set(true);
1671 hr->set_next_in_collection_set(_collection_set); 1671 hr->set_next_in_collection_set(_collection_set);
1672 _collection_set = hr; 1672 _collection_set = hr;
1808 } 1808 }
1809 1809
1810 // Add the region at the RHS of the incremental cset 1810 // Add the region at the RHS of the incremental cset
1811 void G1CollectorPolicy::add_region_to_incremental_cset_rhs(HeapRegion* hr) { 1811 void G1CollectorPolicy::add_region_to_incremental_cset_rhs(HeapRegion* hr) {
1812 // We should only ever be appending survivors at the end of a pause 1812 // We should only ever be appending survivors at the end of a pause
1813 assert( hr->is_survivor(), "Logic"); 1813 assert(hr->is_survivor(), "Logic");
1814 1814
1815 // Do the 'common' stuff 1815 // Do the 'common' stuff
1816 add_region_to_incremental_cset_common(hr); 1816 add_region_to_incremental_cset_common(hr);
1817 1817
1818 // Now add the region at the right hand side 1818 // Now add the region at the right hand side
1826 } 1826 }
1827 1827
1828 // Add the region to the LHS of the incremental cset 1828 // Add the region to the LHS of the incremental cset
1829 void G1CollectorPolicy::add_region_to_incremental_cset_lhs(HeapRegion* hr) { 1829 void G1CollectorPolicy::add_region_to_incremental_cset_lhs(HeapRegion* hr) {
1830 // Survivors should be added to the RHS at the end of a pause 1830 // Survivors should be added to the RHS at the end of a pause
1831 assert(!hr->is_survivor(), "Logic"); 1831 assert(hr->is_eden(), "Logic");
1832 1832
1833 // Do the 'common' stuff 1833 // Do the 'common' stuff
1834 add_region_to_incremental_cset_common(hr); 1834 add_region_to_incremental_cset_common(hr);
1835 1835
1836 // Add the region at the left hand side 1836 // Add the region at the left hand side
1986 init_cset_region_lengths(eden_region_length, survivor_region_length); 1986 init_cset_region_lengths(eden_region_length, survivor_region_length);
1987 1987
1988 HeapRegion* hr = young_list->first_survivor_region(); 1988 HeapRegion* hr = young_list->first_survivor_region();
1989 while (hr != NULL) { 1989 while (hr != NULL) {
1990 assert(hr->is_survivor(), "badly formed young list"); 1990 assert(hr->is_survivor(), "badly formed young list");
1991 hr->set_young(); 1991 // There is a convention that all the young regions in the CSet
1992 // are tagged as "eden", so we do this for the survivors here. We
1993 // use the special set_eden_pre_gc() as it doesn't check that the
1994 // region is free (which is not the case here).
1995 hr->set_eden_pre_gc();
1992 hr = hr->get_next_young_region(); 1996 hr = hr->get_next_young_region();
1993 } 1997 }
1994 1998
1995 // Clear the fields that point to the survivor list - they are all young now. 1999 // Clear the fields that point to the survivor list - they are all young now.
1996 young_list->clear_survivors(); 2000 young_list->clear_survivors();