| /* Magical NSA API -- Associate a C ptr with an instance of an object |
| Copyright (C) 1998 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| #ifndef JCL_NATIVE_STATE |
| #define JCL_NATIVE_STATE |
| |
| #include <jni.h> |
| |
| struct state_table |
| { |
| jint size; /* number of slots, should be prime */ |
| jfieldID hash; /* field containing System.identityHashCode(this) */ |
| jclass clazz; /* lock aquired for reading/writing nodes */ |
| struct state_node **head; |
| }; |
| |
| struct state_node |
| { |
| jint key; |
| void *c_state; |
| struct state_node *next; |
| }; |
| |
| struct state_table * init_state_table_with_size (JNIEnv *, jclass, jint); |
| struct state_table * init_state_table (JNIEnv *, jclass); |
| |
| /* lowlevel api */ |
| void set_state_oid (JNIEnv *, jobject, struct state_table *, jint, void *); |
| void * get_state_oid (JNIEnv *, jobject, struct state_table *, jint); |
| void * remove_state_oid (JNIEnv *, jobject, struct state_table *, jint); |
| |
| /* highlevel api */ |
| int set_state (JNIEnv *, jobject, struct state_table *, void *); |
| void * get_state (JNIEnv *, jobject, struct state_table *); |
| void * remove_state_slot (JNIEnv *, jobject, struct state_table *); |
| |
| #endif |