1 /*
2 * Copyright (c) 2001, 2009, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
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 class HeapRegion;
26 class G1CollectedHeap;
27 class G1RemSet;
28 class ConcurrentMark;
29 class DirtyCardToOopClosure;
30 class CMBitMap;
31 class CMMarkStack;
32 class G1ParScanThreadState;
33
34 // A class that scans oops in a given heap region (much as OopsInGenClosure
35 // scans oops in a generation.)
36 class OopsInHeapRegionClosure: public OopsInGenClosure {
37 protected:
38 HeapRegion* _from;
39 public:
40 virtual void set_region(HeapRegion* from) { _from = from; }
41 };
42
43 class G1ParClosureSuper : public OopsInHeapRegionClosure {
44 protected:
193 bool do_header() { return false; }
194 void set_region(HeapRegion* from) {
195 _oc->set_region(from);
196 }
197 };
198
199 class FilterOutOfRegionClosure: public OopClosure {
200 HeapWord* _r_bottom;
201 HeapWord* _r_end;
202 OopClosure* _oc;
203 int _out_of_region;
204 public:
205 FilterOutOfRegionClosure(HeapRegion* r, OopClosure* oc);
206 template <class T> void do_oop_nv(T* p);
207 virtual void do_oop(oop* p) { do_oop_nv(p); }
208 virtual void do_oop(narrowOop* p) { do_oop_nv(p); }
209 bool apply_to_weak_ref_discovered_field() { return true; }
210 bool do_header() { return false; }
211 int out_of_region() { return _out_of_region; }
212 };
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1 /*
2 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
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_G1_G1OOPCLOSURES_HPP
26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1OOPCLOSURES_HPP
27
28 class HeapRegion;
29 class G1CollectedHeap;
30 class G1RemSet;
31 class ConcurrentMark;
32 class DirtyCardToOopClosure;
33 class CMBitMap;
34 class CMMarkStack;
35 class G1ParScanThreadState;
36
37 // A class that scans oops in a given heap region (much as OopsInGenClosure
38 // scans oops in a generation.)
39 class OopsInHeapRegionClosure: public OopsInGenClosure {
40 protected:
41 HeapRegion* _from;
42 public:
43 virtual void set_region(HeapRegion* from) { _from = from; }
44 };
45
46 class G1ParClosureSuper : public OopsInHeapRegionClosure {
47 protected:
196 bool do_header() { return false; }
197 void set_region(HeapRegion* from) {
198 _oc->set_region(from);
199 }
200 };
201
202 class FilterOutOfRegionClosure: public OopClosure {
203 HeapWord* _r_bottom;
204 HeapWord* _r_end;
205 OopClosure* _oc;
206 int _out_of_region;
207 public:
208 FilterOutOfRegionClosure(HeapRegion* r, OopClosure* oc);
209 template <class T> void do_oop_nv(T* p);
210 virtual void do_oop(oop* p) { do_oop_nv(p); }
211 virtual void do_oop(narrowOop* p) { do_oop_nv(p); }
212 bool apply_to_weak_ref_discovered_field() { return true; }
213 bool do_header() { return false; }
214 int out_of_region() { return _out_of_region; }
215 };
216
217 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1OOPCLOSURES_HPP
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