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_GC_IMPLEMENTATION_SHARED_VMGCOPERATIONS_HPP
26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_VMGCOPERATIONS_HPP
27
28 #include "gc_interface/collectedHeap.hpp"
29 #include "memory/heapInspection.hpp"
30 #include "runtime/handles.hpp"
31 #include "runtime/jniHandles.hpp"
32 #include "runtime/synchronizer.hpp"
33 #include "runtime/vm_operations.hpp"
34 #include "prims/jvmtiExport.hpp"
35
36 // The following class hierarchy represents
37 // a set of operations (VM_Operation) related to GC.
38 //
39 // VM_Operation
40 // VM_GC_Operation
41 // VM_GC_HeapInspection
42 // VM_GenCollectFull
43 // VM_GenCollectFullConcurrent
44 // VM_ParallelGCSystemGC
45 // VM_CollectForAllocation
46 // VM_GenCollectForAllocation
47 // VM_ParallelGCFailedAllocation
48 // VM_GC_Operation
49 // - implements methods common to all classes in the hierarchy:
50 // prevents multiple gc requests and manages lock on heap;
51 //
52 // VM_GC_HeapInspection
53 // - prints class histogram on SIGBREAK if PrintClassHistogram
54 // is specified; and also the attach "inspectheap" operation
226 MetaWord* result() const { return _result; }
227
228 bool initiate_concurrent_GC();
229 };
230
231 class SvcGCMarker : public StackObj {
232 private:
233 JvmtiGCMarker _jgcm;
234 public:
235 typedef enum { MINOR, FULL, OTHER } reason_type;
236
237 SvcGCMarker(reason_type reason ) {
238 VM_GC_Operation::notify_gc_begin(reason == FULL);
239 }
240
241 ~SvcGCMarker() {
242 VM_GC_Operation::notify_gc_end();
243 }
244 };
245
246 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_VMGCOPERATIONS_HPP
|
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_GC_SHARED_VMGCOPERATIONS_HPP
26 #define SHARE_VM_GC_SHARED_VMGCOPERATIONS_HPP
27
28 #include "gc/shared/collectedHeap.hpp"
29 #include "memory/heapInspection.hpp"
30 #include "prims/jvmtiExport.hpp"
31 #include "runtime/handles.hpp"
32 #include "runtime/jniHandles.hpp"
33 #include "runtime/synchronizer.hpp"
34 #include "runtime/vm_operations.hpp"
35
36 // The following class hierarchy represents
37 // a set of operations (VM_Operation) related to GC.
38 //
39 // VM_Operation
40 // VM_GC_Operation
41 // VM_GC_HeapInspection
42 // VM_GenCollectFull
43 // VM_GenCollectFullConcurrent
44 // VM_ParallelGCSystemGC
45 // VM_CollectForAllocation
46 // VM_GenCollectForAllocation
47 // VM_ParallelGCFailedAllocation
48 // VM_GC_Operation
49 // - implements methods common to all classes in the hierarchy:
50 // prevents multiple gc requests and manages lock on heap;
51 //
52 // VM_GC_HeapInspection
53 // - prints class histogram on SIGBREAK if PrintClassHistogram
54 // is specified; and also the attach "inspectheap" operation
226 MetaWord* result() const { return _result; }
227
228 bool initiate_concurrent_GC();
229 };
230
231 class SvcGCMarker : public StackObj {
232 private:
233 JvmtiGCMarker _jgcm;
234 public:
235 typedef enum { MINOR, FULL, OTHER } reason_type;
236
237 SvcGCMarker(reason_type reason ) {
238 VM_GC_Operation::notify_gc_begin(reason == FULL);
239 }
240
241 ~SvcGCMarker() {
242 VM_GC_Operation::notify_gc_end();
243 }
244 };
245
246 #endif // SHARE_VM_GC_SHARED_VMGCOPERATIONS_HPP
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