5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 // This class (or more correctly, subtypes of this class)
26 // are used to define global garbage collector attributes.
27 // This includes initialization of generations and any other
28 // shared resources they may need.
29 //
30 // In general, all flag adjustment and validation should be
31 // done in initialize_flags(), which is called prior to
32 // initialize_size_info().
33 //
34 // This class is not fully developed yet. As more collector(s)
35 // are added, it is expected that we will come across further
36 // behavior that requires global attention. The correct place
37 // to deal with those issues is this class.
38
39 // Forward declarations.
40 class GenCollectorPolicy;
41 class TwoGenerationCollectorPolicy;
42 class AdaptiveSizePolicy;
43 #ifndef SERIALGC
44 class ConcurrentMarkSweepPolicy;
317 virtual CollectorPolicy::Name kind() {
318 return CollectorPolicy::TwoGenerationCollectorPolicyKind;
319 }
320
321 // Returns true is gen0 sizes were adjusted
322 bool adjust_gen0_sizes(size_t* gen0_size_ptr, size_t* gen1_size_ptr,
323 size_t heap_size, size_t min_gen1_size);
324 };
325
326 class MarkSweepPolicy : public TwoGenerationCollectorPolicy {
327 protected:
328 void initialize_generations();
329
330 public:
331 MarkSweepPolicy();
332
333 MarkSweepPolicy* as_mark_sweep_policy() { return this; }
334
335 void initialize_gc_policy_counters();
336 };
|
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_MEMORY_COLLECTORPOLICY_HPP
26 #define SHARE_VM_MEMORY_COLLECTORPOLICY_HPP
27
28 #include "memory/barrierSet.hpp"
29 #include "memory/genRemSet.hpp"
30 #include "memory/permGen.hpp"
31
32 // This class (or more correctly, subtypes of this class)
33 // are used to define global garbage collector attributes.
34 // This includes initialization of generations and any other
35 // shared resources they may need.
36 //
37 // In general, all flag adjustment and validation should be
38 // done in initialize_flags(), which is called prior to
39 // initialize_size_info().
40 //
41 // This class is not fully developed yet. As more collector(s)
42 // are added, it is expected that we will come across further
43 // behavior that requires global attention. The correct place
44 // to deal with those issues is this class.
45
46 // Forward declarations.
47 class GenCollectorPolicy;
48 class TwoGenerationCollectorPolicy;
49 class AdaptiveSizePolicy;
50 #ifndef SERIALGC
51 class ConcurrentMarkSweepPolicy;
324 virtual CollectorPolicy::Name kind() {
325 return CollectorPolicy::TwoGenerationCollectorPolicyKind;
326 }
327
328 // Returns true is gen0 sizes were adjusted
329 bool adjust_gen0_sizes(size_t* gen0_size_ptr, size_t* gen1_size_ptr,
330 size_t heap_size, size_t min_gen1_size);
331 };
332
333 class MarkSweepPolicy : public TwoGenerationCollectorPolicy {
334 protected:
335 void initialize_generations();
336
337 public:
338 MarkSweepPolicy();
339
340 MarkSweepPolicy* as_mark_sweep_policy() { return this; }
341
342 void initialize_gc_policy_counters();
343 };
344
345 #endif // SHARE_VM_MEMORY_COLLECTORPOLICY_HPP
|