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.parallel;
26
27 import java.io.*;
28 import java.util.*;
29
30 import sun.jvm.hotspot.debugger.*;
31 import sun.jvm.hotspot.gc.shared.*;
32 import sun.jvm.hotspot.runtime.*;
33 import sun.jvm.hotspot.types.*;
34
35 public class ParallelScavengeHeap extends CollectedHeap {
36 static {
37 VM.registerVMInitializedObserver(new Observer() {
38 public void update(Observable o, Object data) {
39 initialize(VM.getVM().getTypeDataBase());
40 }
41 });
42 }
43
44 private static synchronized void initialize(TypeDataBase db) {
45 Type type = db.lookupType("ParallelScavengeHeap");
46 youngGenField = type.getAddressField("_young_gen");
47 oldGenField = type.getAddressField("_old_gen");
48 }
49
50 public ParallelScavengeHeap(Address addr) {
51 super(addr);
69 }
70
71 public long used() {
72 return youngGen().used() + oldGen().used();
73 }
74
75 public boolean isIn(Address a) {
76 if (youngGen().isIn(a)) {
77 return true;
78 }
79
80 if (oldGen().isIn(a)) {
81 return true;
82 }
83
84 return false;
85 }
86
87 public CollectedHeapName kind() {
88 return CollectedHeapName.PARALLEL;
89 }
90
91 public void printOn(PrintStream tty) {
92 tty.print("ParallelScavengeHeap [ ");
93 youngGen().printOn(tty);
94 oldGen().printOn(tty);
95 tty.print(" ] ");
96 }
97 }
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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.parallel;
26
27 import java.io.*;
28 import java.util.*;
29
30 import sun.jvm.hotspot.debugger.*;
31 import sun.jvm.hotspot.gc.shared.*;
32 import sun.jvm.hotspot.memory.MemRegion;
33 import sun.jvm.hotspot.runtime.*;
34 import sun.jvm.hotspot.types.*;
35
36 public class ParallelScavengeHeap extends CollectedHeap {
37 static {
38 VM.registerVMInitializedObserver(new Observer() {
39 public void update(Observable o, Object data) {
40 initialize(VM.getVM().getTypeDataBase());
41 }
42 });
43 }
44
45 private static synchronized void initialize(TypeDataBase db) {
46 Type type = db.lookupType("ParallelScavengeHeap");
47 youngGenField = type.getAddressField("_young_gen");
48 oldGenField = type.getAddressField("_old_gen");
49 }
50
51 public ParallelScavengeHeap(Address addr) {
52 super(addr);
70 }
71
72 public long used() {
73 return youngGen().used() + oldGen().used();
74 }
75
76 public boolean isIn(Address a) {
77 if (youngGen().isIn(a)) {
78 return true;
79 }
80
81 if (oldGen().isIn(a)) {
82 return true;
83 }
84
85 return false;
86 }
87
88 public CollectedHeapName kind() {
89 return CollectedHeapName.PARALLEL;
90 }
91
92 // Simple wrapper to provide toString() usable for debugging.
93 private class LiveRegionProviderImpl implements LiveRegionsProvider {
94 private String name;
95 private MutableSpace space;
96
97 public LiveRegionProviderImpl(String name, MutableSpace space) {
98 this.name = name;
99 this.space = space;
100 }
101
102 @Override
103 public List<MemRegion> getLiveRegions() {
104 return space.getLiveRegions();
105 }
106 @Override
107 public String toString() {
108 return name;
109 }
110 }
111
112 public void liveRegionsIterate(LiveRegionsClosure closure) {
113 // Add eden space
114 closure.doLiveRegions(new LiveRegionProviderImpl("eden", youngGen().edenSpace()));
115 // Add from-space but not to-space
116 closure.doLiveRegions(new LiveRegionProviderImpl("from", youngGen().fromSpace()));
117
118 closure.doLiveRegions(new LiveRegionProviderImpl("old ", oldGen().objectSpace()));
119 }
120
121 public void printOn(PrintStream tty) {
122 tty.print("ParallelScavengeHeap [ ");
123 youngGen().printOn(tty);
124 oldGen().printOn(tty);
125 tty.print(" ] ");
126 }
127 }
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