1 /*
2 * Copyright (c) 2000, 2013, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
828 * the a format that matches its tag:
829 * <ul>
830 * <li>Integer, Long, Float, Double: the corresponding wrapper object type from java.lang
831 * <li>Utf8: a string (must have suitable syntax if used as signature or name)
832 * <li>Class: any java.lang.Class object
833 * <li>String: any object (not just a java.lang.String)
834 * <li>InterfaceMethodRef: (NYI) a method handle to invoke on that call site's arguments
835 * </ul>
836 * @params hostClass context for linkage, access control, protection domain, and class loader
837 * @params data bytes of a class file
838 * @params cpPatches where non-null entries exist, they replace corresponding CP entries in data
839 */
840 public native Class<?> defineAnonymousClass(Class<?> hostClass, byte[] data, Object[] cpPatches);
841
842
843 /** Allocate an instance but do not run any constructor.
844 Initializes the class if it has not yet been. */
845 public native Object allocateInstance(Class<?> cls)
846 throws InstantiationException;
847
848 /** Lock the object. It must get unlocked via {@link #monitorExit}. */
849 public native void monitorEnter(Object o);
850
851 /**
852 * Unlock the object. It must have been locked via {@link
853 * #monitorEnter}.
854 */
855 public native void monitorExit(Object o);
856
857 /**
858 * Tries to lock the object. Returns true or false to indicate
859 * whether the lock succeeded. If it did, the object must be
860 * unlocked via {@link #monitorExit}.
861 */
862 public native boolean tryMonitorEnter(Object o);
863
864 /** Throw the exception without telling the verifier. */
865 public native void throwException(Throwable ee);
866
867
868 /**
869 * Atomically update Java variable to <tt>x</tt> if it is currently
870 * holding <tt>expected</tt>.
871 * @return <tt>true</tt> if successful
872 */
873 public final native boolean compareAndSwapObject(Object o, long offset,
874 Object expected,
875 Object x);
876
877 /**
878 * Atomically update Java variable to <tt>x</tt> if it is currently
879 * holding <tt>expected</tt>.
880 * @return <tt>true</tt> if successful
881 */
882 public final native boolean compareAndSwapInt(Object o, long offset,
883 int expected,
|
1 /*
2 * Copyright (c) 2000, 2015, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
828 * the a format that matches its tag:
829 * <ul>
830 * <li>Integer, Long, Float, Double: the corresponding wrapper object type from java.lang
831 * <li>Utf8: a string (must have suitable syntax if used as signature or name)
832 * <li>Class: any java.lang.Class object
833 * <li>String: any object (not just a java.lang.String)
834 * <li>InterfaceMethodRef: (NYI) a method handle to invoke on that call site's arguments
835 * </ul>
836 * @params hostClass context for linkage, access control, protection domain, and class loader
837 * @params data bytes of a class file
838 * @params cpPatches where non-null entries exist, they replace corresponding CP entries in data
839 */
840 public native Class<?> defineAnonymousClass(Class<?> hostClass, byte[] data, Object[] cpPatches);
841
842
843 /** Allocate an instance but do not run any constructor.
844 Initializes the class if it has not yet been. */
845 public native Object allocateInstance(Class<?> cls)
846 throws InstantiationException;
847
848 /** Throw the exception without telling the verifier. */
849 public native void throwException(Throwable ee);
850
851
852 /**
853 * Atomically update Java variable to <tt>x</tt> if it is currently
854 * holding <tt>expected</tt>.
855 * @return <tt>true</tt> if successful
856 */
857 public final native boolean compareAndSwapObject(Object o, long offset,
858 Object expected,
859 Object x);
860
861 /**
862 * Atomically update Java variable to <tt>x</tt> if it is currently
863 * holding <tt>expected</tt>.
864 * @return <tt>true</tt> if successful
865 */
866 public final native boolean compareAndSwapInt(Object o, long offset,
867 int expected,
|