1 /* src/native/jni.h - JNI types and data structures
3 Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
4 C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
5 E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
6 J. Wenninger, Institut f. Computersprachen - TU Wien
8 This file is part of CACAO.
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2, or (at
13 your option) any later version.
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
25 Contact: cacao@cacaojvm.org
27 Authors: Reinhard Grafl
31 $Id: jni.h 6167 2006-12-10 23:20:31Z twisti $
36 /* GNU Classpath jni.h *********************************************************
38 ATTENTION: We include this file before we actually define our own
39 jni.h. We do this because, otherwise we can get into unresolvable
40 circular header dependencies.
42 This is OK as GNU Classpath defines:
44 #define _CLASSPATH_JNI_H
46 CLASSPATH_JNI_H is in config.h defined.
48 *******************************************************************************/
52 #include CLASSPATH_JNI_H
58 /* forward typedefs ***********************************************************/
60 typedef struct localref_table localref_table;
65 #include "vm/global.h"
66 #include "vm/method.h"
69 /* _Jv_JNIEnv *****************************************************************/
71 typedef struct _Jv_JNIEnv _Jv_JNIEnv;
74 const struct JNINativeInterface *env; /* This MUST be the first entry */
78 /* _Jv_JavaVM *****************************************************************/
80 typedef struct _Jv_JavaVM _Jv_JavaVM;
83 const struct JNIInvokeInterface *functions;/* This MUST be the first entry*/
85 /* JVM instance-specific variables */
87 s8 starttime; /* VM startup time */
89 s4 Java_gnu_java_lang_management_VMClassLoadingMXBeanImpl_verbose;
90 s4 Java_gnu_java_lang_management_VMMemoryMXBeanImpl_verbose;
91 s4 java_lang_management_ThreadMXBean_PeakThreadCount;
92 s4 java_lang_management_ThreadMXBean_ThreadCount;
93 s8 java_lang_management_ThreadMXBean_TotalStartedThreadCount;
94 s4 Java_java_lang_VMClassLoader_defaultAssertionStatus;
98 /* CACAO related stuff ********************************************************/
100 extern const struct JNIInvokeInterface _Jv_JNIInvokeInterface;
101 extern struct JNINativeInterface _Jv_JNINativeInterface;
104 /* local reference table ******************************************************/
106 #define LOCALREFTABLE_CAPACITY 16
108 /* localref_table **************************************************************
110 ATTENTION: keep this structure a multiple of 8-bytes!!! This is
111 essential for the native stub on 64-bit architectures.
113 *******************************************************************************/
115 struct localref_table {
116 s4 capacity; /* table size */
117 s4 used; /* currently used references */
118 s4 localframes; /* number of current frames */
119 s4 PADDING; /* 8-byte padding */
120 localref_table *prev; /* link to prev table (LocalFrame) */
121 java_objectheader *refs[LOCALREFTABLE_CAPACITY]; /* references */
124 #if defined(ENABLE_THREADS)
125 #define LOCALREFTABLE (THREADOBJECT->_localref_table)
127 extern localref_table *_no_threads_localref_table;
129 #define LOCALREFTABLE (_no_threads_localref_table)
133 /* hashtable_global_ref_entry *************************************************/
135 typedef struct hashtable_global_ref_entry hashtable_global_ref_entry;
137 struct hashtable_global_ref_entry {
138 java_objectheader *o; /* object pointer of global ref */
139 s4 refs; /* references of the current pointer */
140 hashtable_global_ref_entry *hashlink; /* link for external chaining */
144 /* function prototypes ********************************************************/
146 /* initialize JNI subsystem */
148 bool jni_init_localref_table(void);
150 java_objectheader *_Jv_jni_invokeNative(methodinfo *m, java_objectheader *o,
151 java_objectarray *params);
157 * These are local overrides for various environment variables in Emacs.
158 * Please do not remove this and leave it at the end of the file, where
159 * Emacs will automagically detect them.
160 * ---------------------------------------------------------------------
163 * indent-tabs-mode: t