1225 // This resets the card table to all zeros. It is used after
1226 // a collection pause which used the card table to claim cards.
1227 void cleanUpCardTable();
1228
1229 // Iteration functions.
1230
1231 // Iterate over all objects, calling "cl.do_object" on each.
1232 virtual void object_iterate(ObjectClosure* cl);
1233
1234 virtual void safe_object_iterate(ObjectClosure* cl) {
1235 object_iterate(cl);
1236 }
1237
1238 // Iterate over heap regions, in address order, terminating the
1239 // iteration early if the "doHeapRegion" method returns "true".
1240 void heap_region_iterate(HeapRegionClosure* blk) const;
1241
1242 // Return the region with the given index. It assumes the index is valid.
1243 inline HeapRegion* region_at(uint index) const;
1244
1245 // Return the next region (by index) if that region is also humongous, NULL otherwise.
1246 inline HeapRegion* next_humongous_region(HeapRegion* hr) const;
1247
1248 // Calculate the region index of the given address. Given address must be
1249 // within the heap.
1250 inline uint addr_to_region(HeapWord* addr) const;
1251
1252 inline HeapWord* bottom_addr_for_region(uint index) const;
1253
1254 // Iterate over the heap regions in parallel. Assumes that this will be called
1255 // in parallel by ParallelGCThreads worker threads with distinct worker ids
1256 // in the range [0..max(ParallelGCThreads-1, 1)]. Applies "blk->doHeapRegion"
1257 // to each of the regions, by attempting to claim the region using the
1258 // HeapRegionClaimer and, if successful, applying the closure to the claimed
1259 // region. The concurrent argument should be set to true if iteration is
1260 // performed concurrently, during which no assumptions are made for consistent
1261 // attributes of the heap regions (as they might be modified while iterating).
1262 void heap_region_par_iterate(HeapRegionClosure* cl,
1263 uint worker_id,
1264 HeapRegionClaimer* hrclaimer,
1265 bool concurrent = false) const;
1266
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1225 // This resets the card table to all zeros. It is used after
1226 // a collection pause which used the card table to claim cards.
1227 void cleanUpCardTable();
1228
1229 // Iteration functions.
1230
1231 // Iterate over all objects, calling "cl.do_object" on each.
1232 virtual void object_iterate(ObjectClosure* cl);
1233
1234 virtual void safe_object_iterate(ObjectClosure* cl) {
1235 object_iterate(cl);
1236 }
1237
1238 // Iterate over heap regions, in address order, terminating the
1239 // iteration early if the "doHeapRegion" method returns "true".
1240 void heap_region_iterate(HeapRegionClosure* blk) const;
1241
1242 // Return the region with the given index. It assumes the index is valid.
1243 inline HeapRegion* region_at(uint index) const;
1244
1245 // Return the next region (by index) that is part of the same
1246 // humongous object that hr is part of.
1247 inline HeapRegion* next_region_in_humongous(HeapRegion* hr) const;
1248
1249 // Calculate the region index of the given address. Given address must be
1250 // within the heap.
1251 inline uint addr_to_region(HeapWord* addr) const;
1252
1253 inline HeapWord* bottom_addr_for_region(uint index) const;
1254
1255 // Iterate over the heap regions in parallel. Assumes that this will be called
1256 // in parallel by ParallelGCThreads worker threads with distinct worker ids
1257 // in the range [0..max(ParallelGCThreads-1, 1)]. Applies "blk->doHeapRegion"
1258 // to each of the regions, by attempting to claim the region using the
1259 // HeapRegionClaimer and, if successful, applying the closure to the claimed
1260 // region. The concurrent argument should be set to true if iteration is
1261 // performed concurrently, during which no assumptions are made for consistent
1262 // attributes of the heap regions (as they might be modified while iterating).
1263 void heap_region_par_iterate(HeapRegionClosure* cl,
1264 uint worker_id,
1265 HeapRegionClaimer* hrclaimer,
1266 bool concurrent = false) const;
1267
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