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_G1_G1ROOTPROCESSOR_HPP
26 #define SHARE_GC_G1_G1ROOTPROCESSOR_HPP
27
28 #include "gc/shared/strongRootsScope.hpp"
29 #include "memory/allocation.hpp"
30 #include "runtime/mutex.hpp"
31
32 class CLDClosure;
33 class CodeBlobClosure;
34 class G1CollectedHeap;
35 class G1EvacuationRootClosures;
36 class G1GCPhaseTimes;
37 class G1ParScanThreadState;
38 class G1RootClosures;
39 class Monitor;
40 class OopClosure;
41 class SubTasksDone;
42
43 // Scoped object to assist in applying oop, CLD and code blob closures to
44 // root locations. Handles claiming of different root scanning tasks
45 // and takes care of global state for root scanning via a StrongRootsScope.
46 // In the parallel case there is a shared G1RootProcessor object where all
47 // worker thread call the process_roots methods.
48 class G1RootProcessor : public StackObj {
49 G1CollectedHeap* _g1h;
50 SubTasksDone _process_strong_tasks;
51 StrongRootsScope _srs;
52
53 enum G1H_process_roots_tasks {
54 G1RP_PS_Universe_oops_do,
55 G1RP_PS_JNIHandles_oops_do,
56 G1RP_PS_ObjectSynchronizer_oops_do,
57 G1RP_PS_Management_oops_do,
58 G1RP_PS_VMGlobal_oops_do,
59 G1RP_PS_ClassLoaderDataGraph_oops_do,
60 G1RP_PS_jvmti_oops_do,
61 G1RP_PS_CodeCache_oops_do,
62 AOT_ONLY(G1RP_PS_aot_oops_do COMMA)
63 G1RP_PS_refProcessor_oops_do,
64 // Leave this one last.
65 G1RP_PS_NumElements
66 };
67
68 void process_java_roots(G1RootClosures* closures,
69 G1GCPhaseTimes* phase_times,
70 uint worker_id);
71
72 void process_vm_roots(G1RootClosures* closures,
73 G1GCPhaseTimes* phase_times,
74 uint worker_id);
75
76 void process_code_cache_roots(CodeBlobClosure* code_closure,
77 G1GCPhaseTimes* phase_times,
78 uint worker_id);
|
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_G1_G1ROOTPROCESSOR_HPP
26 #define SHARE_GC_G1_G1ROOTPROCESSOR_HPP
27
28 #include "gc/shared/oopStorageSetParState.hpp"
29 #include "gc/shared/strongRootsScope.hpp"
30 #include "memory/allocation.hpp"
31 #include "runtime/mutex.hpp"
32
33 class CLDClosure;
34 class CodeBlobClosure;
35 class G1CollectedHeap;
36 class G1EvacuationRootClosures;
37 class G1GCPhaseTimes;
38 class G1ParScanThreadState;
39 class G1RootClosures;
40 class Monitor;
41 class OopClosure;
42 class SubTasksDone;
43
44 // Scoped object to assist in applying oop, CLD and code blob closures to
45 // root locations. Handles claiming of different root scanning tasks
46 // and takes care of global state for root scanning via a StrongRootsScope.
47 // In the parallel case there is a shared G1RootProcessor object where all
48 // worker thread call the process_roots methods.
49 class G1RootProcessor : public StackObj {
50 G1CollectedHeap* _g1h;
51 SubTasksDone _process_strong_tasks;
52 StrongRootsScope _srs;
53 OopStorageSetStrongParState<false, false> _oop_storage_set_strong_par_state;
54
55 enum G1H_process_roots_tasks {
56 G1RP_PS_Universe_oops_do,
57 G1RP_PS_ObjectSynchronizer_oops_do,
58 G1RP_PS_Management_oops_do,
59 G1RP_PS_ClassLoaderDataGraph_oops_do,
60 G1RP_PS_jvmti_oops_do,
61 G1RP_PS_CodeCache_oops_do,
62 AOT_ONLY(G1RP_PS_aot_oops_do COMMA)
63 G1RP_PS_refProcessor_oops_do,
64 // Leave this one last.
65 G1RP_PS_NumElements
66 };
67
68 void process_java_roots(G1RootClosures* closures,
69 G1GCPhaseTimes* phase_times,
70 uint worker_id);
71
72 void process_vm_roots(G1RootClosures* closures,
73 G1GCPhaseTimes* phase_times,
74 uint worker_id);
75
76 void process_code_cache_roots(CodeBlobClosure* code_closure,
77 G1GCPhaseTimes* phase_times,
78 uint worker_id);
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