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_GC_SHARED_GCARGUMENTS_HPP
26 #define SHARE_GC_SHARED_GCARGUMENTS_HPP
27
28 #include "memory/allocation.hpp"
29
30 class CollectedHeap;
31
32 class GCArguments : public CHeapObj<mtGC> {
33 private:
34 static GCArguments* _instance;
35
36 static void select_gc();
37 static void select_gc_ergonomically();
38 static bool gc_selected();
39
40 protected:
41 template <class Heap, class Policy>
42 CollectedHeap* create_heap_with_policy();
43
44 public:
45 static jint initialize();
46 static bool is_initialized();
47 static GCArguments* arguments();
48
49 void post_heap_initialize();
50
51 virtual void initialize_flags();
52
53 // Collector specific function to allow finer grained verification
54 // through VerifyGCType. If not overridden the default version will
55 // warn that the flag is not supported for the given collector.
56 // Returns true if parsing should continue, false otherwise.
57 virtual bool parse_verification_type(const char* type);
58
59 virtual size_t conservative_max_heap_alignment() = 0;
60
61 virtual CollectedHeap* create_heap() = 0;
62 };
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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_GC_SHARED_GCARGUMENTS_HPP
26 #define SHARE_GC_SHARED_GCARGUMENTS_HPP
27
28 #include "gc/shared/gcSettings.hpp"
29 #include "memory/allocation.hpp"
30
31 class CollectedHeap;
32
33 class GCArguments : public CHeapObj<mtGC> {
34 private:
35 static GCArguments* _instance;
36
37 static void select_gc();
38 static void select_gc_ergonomically();
39 static bool gc_selected();
40
41 protected:
42 void initialize_heap_flags(GCSettings& s);
43 void initialize_size_info(GCSettings& s);
44
45 DEBUG_ONLY(void assert_flags(const GCSettings& s);)
46 DEBUG_ONLY(void assert_size_info(const GCSettings& s);)
47
48 public:
49 static jint initialize();
50 static bool is_initialized();
51 static GCArguments* arguments();
52
53 void post_heap_initialize();
54
55 virtual void initialize_flags();
56
57 // Collector specific function to allow finer grained verification
58 // through VerifyGCType. If not overridden the default version will
59 // warn that the flag is not supported for the given collector.
60 // Returns true if parsing should continue, false otherwise.
61 virtual bool parse_verification_type(const char* type);
62
63 virtual size_t conservative_max_heap_alignment() = 0;
64
65 virtual CollectedHeap* create_heap() = 0;
66 };
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