97
98 size_t space_alignment() { return _space_alignment; }
99 size_t heap_alignment() { return _heap_alignment; }
100
101 size_t initial_heap_byte_size() { return _initial_heap_byte_size; }
102 size_t max_heap_byte_size() { return _max_heap_byte_size; }
103 size_t min_heap_byte_size() { return _min_heap_byte_size; }
104
105 bool should_clear_all_soft_refs() { return _should_clear_all_soft_refs; }
106 void set_should_clear_all_soft_refs(bool v) { _should_clear_all_soft_refs = v; }
107 // Returns the current value of _should_clear_all_soft_refs.
108 // _should_clear_all_soft_refs is set to false as a side effect.
109 bool use_should_clear_all_soft_refs(bool v);
110 bool all_soft_refs_clear() { return _all_soft_refs_clear; }
111 void set_all_soft_refs_clear(bool v) { _all_soft_refs_clear = v; }
112
113 // Called by the GC after Soft Refs have been cleared to indicate
114 // that the request in _should_clear_all_soft_refs has been fulfilled.
115 virtual void cleared_all_soft_refs();
116
117 // Identification methods.
118 virtual GenCollectorPolicy* as_generation_policy() { return NULL; }
119 virtual MarkSweepPolicy* as_mark_sweep_policy() { return NULL; }
120 #if INCLUDE_ALL_GCS
121 virtual ConcurrentMarkSweepPolicy* as_concurrent_mark_sweep_policy() { return NULL; }
122 #endif // INCLUDE_ALL_GCS
123 // Note that these are not virtual.
124 bool is_generation_policy() { return as_generation_policy() != NULL; }
125 bool is_mark_sweep_policy() { return as_mark_sweep_policy() != NULL; }
126 #if INCLUDE_ALL_GCS
127 bool is_concurrent_mark_sweep_policy() { return as_concurrent_mark_sweep_policy() != NULL; }
128 #else // INCLUDE_ALL_GCS
129 bool is_concurrent_mark_sweep_policy() { return false; }
130 #endif // INCLUDE_ALL_GCS
131
132
133 virtual CardTableRS* create_rem_set(MemRegion reserved);
134
135 MetaWord* satisfy_failed_metadata_allocation(ClassLoaderData* loader_data,
136 size_t size,
137 Metaspace::MetadataType mdtype);
138 };
139
140 class ClearedAllSoftRefs : public StackObj {
141 bool _clear_all_soft_refs;
142 CollectorPolicy* _collector_policy;
143 public:
144 ClearedAllSoftRefs(bool clear_all_soft_refs,
145 CollectorPolicy* collector_policy) :
146 _clear_all_soft_refs(clear_all_soft_refs),
147 _collector_policy(collector_policy) {}
148
149 ~ClearedAllSoftRefs() {
150 if (_clear_all_soft_refs) {
151 _collector_policy->cleared_all_soft_refs();
152 }
214 size_t min_old_size() { return _min_old_size; }
215 size_t initial_old_size() { return _initial_old_size; }
216 size_t max_old_size() { return _max_old_size; }
217
218 GenerationSpec* young_gen_spec() const {
219 assert(_young_gen_spec != NULL, "_young_gen_spec should have been initialized");
220 return _young_gen_spec;
221 }
222
223 GenerationSpec* old_gen_spec() const {
224 assert(_old_gen_spec != NULL, "_old_gen_spec should have been initialized");
225 return _old_gen_spec;
226 }
227
228 // Performance Counter support
229 GCPolicyCounters* counters() { return _gc_policy_counters; }
230
231 // Create the jstat counters for the GC policy.
232 virtual void initialize_gc_policy_counters() = 0;
233
234 virtual GenCollectorPolicy* as_generation_policy() { return this; }
235
236 virtual void initialize_generations() { };
237
238 virtual void initialize_all() {
239 CollectorPolicy::initialize_all();
240 initialize_generations();
241 }
242
243 size_t young_gen_size_lower_bound();
244
245 size_t old_gen_size_lower_bound();
246
247 HeapWord* mem_allocate_work(size_t size,
248 bool is_tlab,
249 bool* gc_overhead_limit_was_exceeded);
250
251 HeapWord *satisfy_failed_allocation(size_t size, bool is_tlab);
252
253 // Adaptive size policy
254 AdaptiveSizePolicy* size_policy() { return _size_policy; }
255
256 virtual void initialize_size_policy(size_t init_eden_size,
257 size_t init_promo_size,
258 size_t init_survivor_size);
259
260 virtual void cleared_all_soft_refs();
261
262 };
263
264 class MarkSweepPolicy : public GenCollectorPolicy {
265 protected:
266 void initialize_alignments();
267 void initialize_generations();
268
269 public:
270 MarkSweepPolicy() {}
271
272 MarkSweepPolicy* as_mark_sweep_policy() { return this; }
273
274 void initialize_gc_policy_counters();
275 };
276
277 #endif // SHARE_VM_GC_SHARED_COLLECTORPOLICY_HPP
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97
98 size_t space_alignment() { return _space_alignment; }
99 size_t heap_alignment() { return _heap_alignment; }
100
101 size_t initial_heap_byte_size() { return _initial_heap_byte_size; }
102 size_t max_heap_byte_size() { return _max_heap_byte_size; }
103 size_t min_heap_byte_size() { return _min_heap_byte_size; }
104
105 bool should_clear_all_soft_refs() { return _should_clear_all_soft_refs; }
106 void set_should_clear_all_soft_refs(bool v) { _should_clear_all_soft_refs = v; }
107 // Returns the current value of _should_clear_all_soft_refs.
108 // _should_clear_all_soft_refs is set to false as a side effect.
109 bool use_should_clear_all_soft_refs(bool v);
110 bool all_soft_refs_clear() { return _all_soft_refs_clear; }
111 void set_all_soft_refs_clear(bool v) { _all_soft_refs_clear = v; }
112
113 // Called by the GC after Soft Refs have been cleared to indicate
114 // that the request in _should_clear_all_soft_refs has been fulfilled.
115 virtual void cleared_all_soft_refs();
116
117 virtual CardTableRS* create_rem_set(MemRegion reserved);
118
119 MetaWord* satisfy_failed_metadata_allocation(ClassLoaderData* loader_data,
120 size_t size,
121 Metaspace::MetadataType mdtype);
122 };
123
124 class ClearedAllSoftRefs : public StackObj {
125 bool _clear_all_soft_refs;
126 CollectorPolicy* _collector_policy;
127 public:
128 ClearedAllSoftRefs(bool clear_all_soft_refs,
129 CollectorPolicy* collector_policy) :
130 _clear_all_soft_refs(clear_all_soft_refs),
131 _collector_policy(collector_policy) {}
132
133 ~ClearedAllSoftRefs() {
134 if (_clear_all_soft_refs) {
135 _collector_policy->cleared_all_soft_refs();
136 }
198 size_t min_old_size() { return _min_old_size; }
199 size_t initial_old_size() { return _initial_old_size; }
200 size_t max_old_size() { return _max_old_size; }
201
202 GenerationSpec* young_gen_spec() const {
203 assert(_young_gen_spec != NULL, "_young_gen_spec should have been initialized");
204 return _young_gen_spec;
205 }
206
207 GenerationSpec* old_gen_spec() const {
208 assert(_old_gen_spec != NULL, "_old_gen_spec should have been initialized");
209 return _old_gen_spec;
210 }
211
212 // Performance Counter support
213 GCPolicyCounters* counters() { return _gc_policy_counters; }
214
215 // Create the jstat counters for the GC policy.
216 virtual void initialize_gc_policy_counters() = 0;
217
218 virtual void initialize_generations() { };
219
220 virtual void initialize_all() {
221 CollectorPolicy::initialize_all();
222 initialize_generations();
223 }
224
225 size_t young_gen_size_lower_bound();
226
227 size_t old_gen_size_lower_bound();
228
229 HeapWord* mem_allocate_work(size_t size,
230 bool is_tlab,
231 bool* gc_overhead_limit_was_exceeded);
232
233 HeapWord *satisfy_failed_allocation(size_t size, bool is_tlab);
234
235 // Adaptive size policy
236 AdaptiveSizePolicy* size_policy() { return _size_policy; }
237
238 virtual void initialize_size_policy(size_t init_eden_size,
239 size_t init_promo_size,
240 size_t init_survivor_size);
241
242 virtual void cleared_all_soft_refs();
243
244 };
245
246 class MarkSweepPolicy : public GenCollectorPolicy {
247 protected:
248 void initialize_alignments();
249 void initialize_generations();
250
251 public:
252 MarkSweepPolicy() {}
253
254 void initialize_gc_policy_counters();
255 };
256
257 #endif // SHARE_VM_GC_SHARED_COLLECTORPOLICY_HPP
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