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.classfile;
26
27 import java.io.PrintStream;
28 import java.util.*;
29 import sun.jvm.hotspot.debugger.*;
30 import sun.jvm.hotspot.runtime.*;
31 import sun.jvm.hotspot.oops.*;
32 import sun.jvm.hotspot.types.*;
33
34 public class ClassLoaderDataGraph {
35 static {
36 VM.registerVMInitializedObserver(new Observer() {
37 public void update(Observable o, Object data) {
38 initialize(VM.getVM().getTypeDataBase());
39 }
40 });
41 }
42
43 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
44 Type type = db.lookupType("ClassLoaderDataGraph");
45
46 headField = type.getAddressField("_head");
47 }
48
49 private static AddressField headField;
50
51 public ClassLoaderData getClassLoaderGraphHead() {
52 return ClassLoaderData.instantiateWrapperFor(headField.getValue());
53 }
54
55 public static interface KlassVisitor {
56 public void visit(Klass k);
57 }
58
59 /** Iterate over all anonymous class loaders and the klasses in those */
60 public void allAnonymousKlassesDo(final KlassVisitor v) {
61 for (ClassLoaderData cl = getClassLoaderGraphHead();
62 cl != null;
63 cl = cl.next()) {
64 if (cl.getIsAnonymous() == true) {
65 for (Klass k = cl.getKlasses(); k != null; k = k.getNextLinkKlass()) {
66 v.visit(k);
67 }
68 }
69 }
70 }
71
72 }
|
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.classfile;
26
27 import java.io.PrintStream;
28 import java.util.*;
29 import sun.jvm.hotspot.debugger.*;
30 import sun.jvm.hotspot.classfile.*;
31 import sun.jvm.hotspot.runtime.*;
32 import sun.jvm.hotspot.oops.*;
33 import sun.jvm.hotspot.types.*;
34
35 public class ClassLoaderDataGraph {
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) throws WrongTypeException {
45 Type type = db.lookupType("ClassLoaderDataGraph");
46
47 headField = type.getAddressField("_head");
48 }
49
50 private static AddressField headField;
51
52 public ClassLoaderData getClassLoaderGraphHead() {
53 return ClassLoaderData.instantiateWrapperFor(headField.getValue());
54 }
55
56 /** Lookup an already loaded class in any class loader. */
57 public Klass find(String className) {
58 Symbol sym = VM.getVM().getSymbolTable().probe(className);
59 if (sym == null) return null;
60 for (ClassLoaderData cld = getClassLoaderGraphHead(); cld != null; cld = cld.next()) {
61 Klass k = cld.find(sym);
62 if (k != null) {
63 return k;
64 }
65 }
66 return null;
67 }
68
69 /** Interface for iterating through all classes. */
70 public static interface ClassVisitor {
71 public void visit(Klass k);
72 }
73
74 /** Interface for iterating through all classes and their class
75 loaders in dictionary */
76 public static interface ClassAndLoaderVisitor {
77 public void visit(Klass k, Oop loader);
78 }
79
80 /** Iterate over all klasses - including object, primitive
81 array klasses */
82 public void classesDo(ClassVisitor v) {
83 for (ClassLoaderData cld = getClassLoaderGraphHead(); cld != null; cld = cld.next()) {
84 cld.classesDo(v);
85 }
86 }
87
88 /** Iterate over all klasses - including object, primitive
89 array klasses, pass initiating loader. */
90 public void allEntriesDo(ClassAndLoaderVisitor v) {
91 for (ClassLoaderData cld = getClassLoaderGraphHead(); cld != null; cld = cld.next()) {
92 cld.allEntriesDo(v);
93 }
94 }
95 }
|