155 inline HeapRegion* at(uint index) const;
156
157 // Return the HeapRegion at the given index, NULL if the index
158 // is for an unavailable region.
159 inline HeapRegion* at_or_null(uint index) const;
160
161 // Returns whether the given region is available for allocation.
162 bool is_available(uint region) const;
163
164 // Return the next region (by index) that is part of the same
165 // humongous object that hr is part of.
166 inline HeapRegion* next_region_in_humongous(HeapRegion* hr) const;
167
168 // If addr is within the committed space return its corresponding
169 // HeapRegion, otherwise return NULL.
170 inline HeapRegion* addr_to_region(HeapWord* addr) const;
171
172 // Insert the given region into the free region list.
173 inline void insert_into_free_list(HeapRegion* hr);
174
175 // Insert the given region list into the global free region list.
176 void insert_list_into_free_list(FreeRegionList* list) {
177 _free_list.add_ordered(list);
178 }
179
180 // Allocate a free region with specific node index. If fails allocate with next node index.
181 virtual HeapRegion* allocate_free_region(HeapRegionType type, uint requested_node_index);
182
183 inline void allocate_free_regions_starting_at(uint first, uint num_regions);
184
185 // Remove all regions from the free list.
186 void remove_all_free_regions() {
187 _free_list.remove_all();
188 }
189
190 // Return the number of committed free regions in the heap.
191 uint num_free_regions() const {
192 return _free_list.length();
193 }
194
195 uint num_free_regions(uint node_index) const {
196 return _free_list.length(node_index);
197 }
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155 inline HeapRegion* at(uint index) const;
156
157 // Return the HeapRegion at the given index, NULL if the index
158 // is for an unavailable region.
159 inline HeapRegion* at_or_null(uint index) const;
160
161 // Returns whether the given region is available for allocation.
162 bool is_available(uint region) const;
163
164 // Return the next region (by index) that is part of the same
165 // humongous object that hr is part of.
166 inline HeapRegion* next_region_in_humongous(HeapRegion* hr) const;
167
168 // If addr is within the committed space return its corresponding
169 // HeapRegion, otherwise return NULL.
170 inline HeapRegion* addr_to_region(HeapWord* addr) const;
171
172 // Insert the given region into the free region list.
173 inline void insert_into_free_list(HeapRegion* hr);
174
175 // Abandon the current free list to allow for a rebuild. The actual
176 // region in the free list must be handled separately.
177 void abandon_free_list() {
178 _free_list.abandon();
179 }
180
181 // Insert the given region list into the global free region list.
182 void insert_list_into_free_list(FreeRegionList* list) {
183 _free_list.add_ordered(list);
184 }
185
186 // Append the list to the current list, requires the lists to be sorted.
187 void append_to_free_list(FreeRegionList* list) {
188 _free_list.append_ordered(list);
189 }
190
191 // Allocate a free region with specific node index. If fails allocate with next node index.
192 virtual HeapRegion* allocate_free_region(HeapRegionType type, uint requested_node_index);
193
194 inline void allocate_free_regions_starting_at(uint first, uint num_regions);
195
196 // Remove all regions from the free list.
197 void remove_all_free_regions() {
198 _free_list.remove_all();
199 }
200
201 // Return the number of committed free regions in the heap.
202 uint num_free_regions() const {
203 return _free_list.length();
204 }
205
206 uint num_free_regions(uint node_index) const {
207 return _free_list.length(node_index);
208 }
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