1 /*
2 * Copyright (c) 2017, 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 package sun.jvm.hotspot.gc.z;
26
27 import java.io.PrintStream;
28
29 import sun.jvm.hotspot.debugger.Address;
30 import sun.jvm.hotspot.runtime.VM;
31 import sun.jvm.hotspot.runtime.VMObject;
32 import sun.jvm.hotspot.runtime.VMObjectFactory;
33 import sun.jvm.hotspot.types.Type;
34 import sun.jvm.hotspot.types.TypeDataBase;
35
36 // Mirror class for ZHeap
37
38 public class ZHeap extends VMObject {
39
40 private static long pageAllocatorFieldOffset;
41
42 static {
43 VM.registerVMInitializedObserver((o, d) -> initialize(VM.getVM().getTypeDataBase()));
44 }
45
46 private static synchronized void initialize(TypeDataBase db) {
47 Type type = db.lookupType("ZHeap");
48
49 pageAllocatorFieldOffset = type.getAddressField("_page_allocator").getOffset();
50 }
51
52 private ZPageAllocator pageAllocator() {
53 Address pageAllocatorAddr = addr.addOffsetTo(pageAllocatorFieldOffset);
54 return (ZPageAllocator)VMObjectFactory.newObject(ZPageAllocator.class, pageAllocatorAddr);
55 }
56
57 public long maxCapacity() {
58 return pageAllocator().maxCapacity();
59 }
60
61 public long capacity() {
62 return pageAllocator().capacity();
63 }
64
65 public long used() {
66 return pageAllocator().used();
67 }
68
69 public void printOn(PrintStream tty) {
70 tty.print(" ZHeap ");
71 tty.print("used " + (used() / 1024 / 1024) + "M, ");
72 tty.print("capacity " + (capacity() / 1024 / 1024) + "M, ");
73 tty.println("max capacity " + (maxCapacity() / 1024 / 1024) + "M");
74 }
75
76 public ZHeap(Address addr) {
77 super(addr);
78 }
79 }
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1 /*
2 * Copyright (c) 2017, 2018, 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 package sun.jvm.hotspot.gc.z;
26
27 import java.io.PrintStream;
28
29 import sun.jvm.hotspot.debugger.Address;
30 import sun.jvm.hotspot.runtime.VM;
31 import sun.jvm.hotspot.runtime.VMObject;
32 import sun.jvm.hotspot.runtime.VMObjectFactory;
33 import sun.jvm.hotspot.types.Type;
34 import sun.jvm.hotspot.types.TypeDataBase;
35
36 // Mirror class for ZHeap
37
38 public class ZHeap extends VMObject {
39
40 private static long pageAllocatorFieldOffset;
41 private static long pageTableFieldOffset;
42
43 static {
44 VM.registerVMInitializedObserver((o, d) -> initialize(VM.getVM().getTypeDataBase()));
45 }
46
47 private static synchronized void initialize(TypeDataBase db) {
48 Type type = db.lookupType("ZHeap");
49
50 pageAllocatorFieldOffset = type.getAddressField("_page_allocator").getOffset();
51 pageTableFieldOffset = type.getAddressField("_pagetable").getOffset();
52 }
53
54 private ZPageAllocator pageAllocator() {
55 Address pageAllocatorAddr = addr.addOffsetTo(pageAllocatorFieldOffset);
56 return (ZPageAllocator)VMObjectFactory.newObject(ZPageAllocator.class, pageAllocatorAddr);
57 }
58
59 ZPageTable pageTable() {
60 return new ZPageTable(addr.addOffsetTo(pageTableFieldOffset));
61 }
62
63 public long maxCapacity() {
64 return pageAllocator().maxCapacity();
65 }
66
67 public long capacity() {
68 return pageAllocator().capacity();
69 }
70
71 public long used() {
72 return pageAllocator().used();
73 }
74
75 boolean is_relocating(Address o) {
76 return pageTable().is_relocating(o);
77 }
78
79 Address forward_object(Address addr) {
80 ZPage page = pageTable().get(addr);
81 return page.forward_object(addr);
82 }
83
84 Address relocate_object(Address addr) {
85 ZPage page = pageTable().get(addr);
86 return page.relocate_object(addr);
87 }
88
89 public void printOn(PrintStream tty) {
90 tty.print(" ZHeap ");
91 tty.print("used " + (used() / 1024 / 1024) + "M, ");
92 tty.print("capacity " + (capacity() / 1024 / 1024) + "M, ");
93 tty.println("max capacity " + (maxCapacity() / 1024 / 1024) + "M");
94 }
95
96 public ZHeap(Address addr) {
97 super(addr);
98 }
99 }
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