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 } |