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 sun.jvm.hotspot.debugger.Address;
28 import sun.jvm.hotspot.runtime.VM;
29 import sun.jvm.hotspot.runtime.VMObject;
30 import sun.jvm.hotspot.types.AddressField;
31 import sun.jvm.hotspot.types.Type;
32 import sun.jvm.hotspot.types.TypeDataBase;
33
34 public class ZAddressRangeMapForPageTable extends VMObject {
35 private static AddressField mapField;
36
37 private static long AddressRangeShift = ZGlobals.ZPageSizeMinShift;
38
39 static {
40 VM.registerVMInitializedObserver((o, d) -> initialize(VM.getVM().getTypeDataBase()));
41 }
42
43 static private synchronized void initialize(TypeDataBase db) {
44 Type type = db.lookupType("ZAddressRangeMapForPageTable");
45
46 mapField = type.getAddressField("_map");
47 }
48
49 public ZAddressRangeMapForPageTable(Address addr) {
50 super(addr);
51 }
52
53 private Address map() {
54 return mapField.getValue(addr);
55 }
56
57 public long size() {
58 return ZGlobals.ZAddressOffsetMax >> AddressRangeShift;
59 }
60
61 private long index_for_addr(Address addr) {
62 long index = ZAddress.offset(addr) >> AddressRangeShift;
63
64 return index;
65 }
66
67 Address at(long index) {
68 return map().getAddressAt(index * VM.getVM().getBytesPerLong());
69 }
70
71 Address get(Address addr) {
72 long index = index_for_addr(addr);
73 return at(index);
74 }
75
76 public class Iterator {
77 private long next = 0;
78
79 boolean hasNext() {
80 return next < size();
81 }
82
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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 sun.jvm.hotspot.debugger.Address;
28 import sun.jvm.hotspot.runtime.VM;
29 import sun.jvm.hotspot.runtime.VMObject;
30 import sun.jvm.hotspot.types.AddressField;
31 import sun.jvm.hotspot.types.Type;
32 import sun.jvm.hotspot.types.TypeDataBase;
33
34 public class ZAddressRangeMapForPageTable extends VMObject {
35 private static AddressField mapField;
36
37 static {
38 VM.registerVMInitializedObserver((o, d) -> initialize(VM.getVM().getTypeDataBase()));
39 }
40
41 static private synchronized void initialize(TypeDataBase db) {
42 Type type = db.lookupType("ZAddressRangeMapForPageTable");
43
44 mapField = type.getAddressField("_map");
45 }
46
47 public ZAddressRangeMapForPageTable(Address addr) {
48 super(addr);
49 }
50
51 private Address map() {
52 return mapField.getValue(addr);
53 }
54
55 public long size() {
56 return ZGlobals.ZAddressOffsetMax >> ZGlobals.ZGranuleSizeShift;
57 }
58
59 private long index_for_addr(Address addr) {
60 long index = ZAddress.offset(addr) >> ZGlobals.ZGranuleSizeShift;
61
62 return index;
63 }
64
65 Address at(long index) {
66 return map().getAddressAt(index * VM.getVM().getBytesPerLong());
67 }
68
69 Address get(Address addr) {
70 long index = index_for_addr(addr);
71 return at(index);
72 }
73
74 public class Iterator {
75 private long next = 0;
76
77 boolean hasNext() {
78 return next < size();
79 }
80
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