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 // The following class hierarchy represents
26 // a set of operations (VM_Operation) related to GC.
27 //
28 // VM_Operation
29 // VM_GC_Operation
30 // VM_GC_HeapInspection
31 // VM_GenCollectForAllocation
32 // VM_GenCollectFull
33 // VM_GenCollectFullConcurrent
34 // VM_ParallelGCFailedAllocation
35 // VM_ParallelGCFailedPermanentAllocation
36 // VM_ParallelGCSystemGC
37 // VM_GC_Operation
38 // - implements methods common to all classes in the hierarchy:
39 // prevents multiple gc requests and manages lock on heap;
40 //
41 // VM_GC_HeapInspection
42 // - prints class histogram on SIGBREAK if PrintClassHistogram
43 // is specified; and also the attach "inspectheap" operation
44 //
182
183 class VM_GenCollectForPermanentAllocation: public VM_GC_Operation {
184 private:
185 HeapWord* _res;
186 size_t _size; // size of object to be allocated
187 public:
188 VM_GenCollectForPermanentAllocation(size_t size,
189 unsigned int gc_count_before,
190 unsigned int full_gc_count_before,
191 GCCause::Cause gc_cause)
192 : VM_GC_Operation(gc_count_before, full_gc_count_before, true),
193 _size(size) {
194 _res = NULL;
195 _gc_cause = gc_cause;
196 }
197 ~VM_GenCollectForPermanentAllocation() {}
198 virtual VMOp_Type type() const { return VMOp_GenCollectForPermanentAllocation; }
199 virtual void doit();
200 HeapWord* result() const { return _res; }
201 };
|
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 "memory/heapInspection.hpp"
29 #include "runtime/handles.hpp"
30 #include "runtime/jniHandles.hpp"
31 #include "runtime/synchronizer.hpp"
32 #include "runtime/vm_operations.hpp"
33
34 // The following class hierarchy represents
35 // a set of operations (VM_Operation) related to GC.
36 //
37 // VM_Operation
38 // VM_GC_Operation
39 // VM_GC_HeapInspection
40 // VM_GenCollectForAllocation
41 // VM_GenCollectFull
42 // VM_GenCollectFullConcurrent
43 // VM_ParallelGCFailedAllocation
44 // VM_ParallelGCFailedPermanentAllocation
45 // VM_ParallelGCSystemGC
46 // VM_GC_Operation
47 // - implements methods common to all classes in the hierarchy:
48 // prevents multiple gc requests and manages lock on heap;
49 //
50 // VM_GC_HeapInspection
51 // - prints class histogram on SIGBREAK if PrintClassHistogram
52 // is specified; and also the attach "inspectheap" operation
53 //
191
192 class VM_GenCollectForPermanentAllocation: public VM_GC_Operation {
193 private:
194 HeapWord* _res;
195 size_t _size; // size of object to be allocated
196 public:
197 VM_GenCollectForPermanentAllocation(size_t size,
198 unsigned int gc_count_before,
199 unsigned int full_gc_count_before,
200 GCCause::Cause gc_cause)
201 : VM_GC_Operation(gc_count_before, full_gc_count_before, true),
202 _size(size) {
203 _res = NULL;
204 _gc_cause = gc_cause;
205 }
206 ~VM_GenCollectForPermanentAllocation() {}
207 virtual VMOp_Type type() const { return VMOp_GenCollectForPermanentAllocation; }
208 virtual void doit();
209 HeapWord* result() const { return _res; }
210 };
211
212 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_VMGCOPERATIONS_HPP
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