Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/gc_implementation/g1/heapRegionSeq.hpp
src/share/vm/gc_implementation/g1/heapRegionSeq.hpp
- changeset 2472
- 0fa27f37d4d4
- parent 2469
- 7e37af9d69ef
- child 2643
- 1216415d8e35
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| 2471:cb913d743d09 | 2472:0fa27f37d4d4 |
|---|---|
| 39 | 39 |
| 40 // The index in "_regions" at which to start the next allocation search. | 40 // The index in "_regions" at which to start the next allocation search. |
| 41 // (For efficiency only; private to obj_allocate after initialization.) | 41 // (For efficiency only; private to obj_allocate after initialization.) |
| 42 int _alloc_search_start; | 42 int _alloc_search_start; |
| 43 | 43 |
| 44 // Attempts to allocate a block of the (assumed humongous) word_size, | 44 // Finds a contiguous set of empty regions of length num, starting |
| 45 // starting at the region "ind". | 45 // from a given index. |
| 46 HeapWord* alloc_obj_from_region_index(int ind, size_t word_size); | 46 int find_contiguous_from(int from, size_t num); |
| 47 | 47 |
| 48 // Currently, we're choosing collection sets in a round-robin fashion, | 48 // Currently, we're choosing collection sets in a round-robin fashion, |
| 49 // starting here. | 49 // starting here. |
| 50 int _next_rr_candidate; | 50 int _next_rr_candidate; |
| 51 | 51 |
| 74 | 74 |
| 75 // Returns the number of contiguous regions at the end of the sequence | 75 // Returns the number of contiguous regions at the end of the sequence |
| 76 // that are available for allocation. | 76 // that are available for allocation. |
| 77 size_t free_suffix(); | 77 size_t free_suffix(); |
| 78 | 78 |
| 79 // Requires "word_size" to be humongous (in the technical sense). If | 79 // Finds a contiguous set of empty regions of length num. |
| 80 // possible, allocates a contiguous subsequence of the heap regions to | 80 int find_contiguous(size_t num); |
| 81 // satisfy the allocation, and returns the address of the beginning of | |
| 82 // that sequence, otherwise returns NULL. | |
| 83 HeapWord* obj_allocate(size_t word_size); | |
| 84 | 81 |
| 85 // Apply the "doHeapRegion" method of "blk" to all regions in "this", | 82 // Apply the "doHeapRegion" method of "blk" to all regions in "this", |
| 86 // in address order, terminating the iteration early | 83 // in address order, terminating the iteration early |
| 87 // if the "doHeapRegion" method returns "true". | 84 // if the "doHeapRegion" method returns "true". |
| 88 void iterate(HeapRegionClosure* blk); | 85 void iterate(HeapRegionClosure* blk); |
