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 HRInto_G1RemSet;
29 class G1RemSet;
30 class ConcurrentMark;
31 class DirtyCardToOopClosure;
32 class CMBitMap;
33 class CMMarkStack;
34 class G1ParScanThreadState;
35
36 // A class that scans oops in a given heap region (much as OopsInGenClosure
37 // scans oops in a generation.)
38 class OopsInHeapRegionClosure: public OopsInGenClosure {
39 protected:
40 HeapRegion* _from;
41 public:
42 virtual void set_region(HeapRegion* from) { _from = from; }
43 };
44
195 bool do_header() { return false; }
196 void set_region(HeapRegion* from) {
197 _oc->set_region(from);
198 }
199 };
200
201 class FilterOutOfRegionClosure: public OopClosure {
202 HeapWord* _r_bottom;
203 HeapWord* _r_end;
204 OopClosure* _oc;
205 int _out_of_region;
206 public:
207 FilterOutOfRegionClosure(HeapRegion* r, OopClosure* oc);
208 template <class T> void do_oop_nv(T* p);
209 virtual void do_oop(oop* p) { do_oop_nv(p); }
210 virtual void do_oop(narrowOop* p) { do_oop_nv(p); }
211 bool apply_to_weak_ref_discovered_field() { return true; }
212 bool do_header() { return false; }
213 int out_of_region() { return _out_of_region; }
214 };
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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 HRInto_G1RemSet;
32 class G1RemSet;
33 class ConcurrentMark;
34 class DirtyCardToOopClosure;
35 class CMBitMap;
36 class CMMarkStack;
37 class G1ParScanThreadState;
38
39 // A class that scans oops in a given heap region (much as OopsInGenClosure
40 // scans oops in a generation.)
41 class OopsInHeapRegionClosure: public OopsInGenClosure {
42 protected:
43 HeapRegion* _from;
44 public:
45 virtual void set_region(HeapRegion* from) { _from = from; }
46 };
47
198 bool do_header() { return false; }
199 void set_region(HeapRegion* from) {
200 _oc->set_region(from);
201 }
202 };
203
204 class FilterOutOfRegionClosure: public OopClosure {
205 HeapWord* _r_bottom;
206 HeapWord* _r_end;
207 OopClosure* _oc;
208 int _out_of_region;
209 public:
210 FilterOutOfRegionClosure(HeapRegion* r, OopClosure* oc);
211 template <class T> void do_oop_nv(T* p);
212 virtual void do_oop(oop* p) { do_oop_nv(p); }
213 virtual void do_oop(narrowOop* p) { do_oop_nv(p); }
214 bool apply_to_weak_ref_discovered_field() { return true; }
215 bool do_header() { return false; }
216 int out_of_region() { return _out_of_region; }
217 };
218
219 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1OOPCLOSURES_HPP
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