/* native/jni.h - JNI types and data structures
- Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
- R. Grafl, A. Krall, C. Kruegel, C. Oates, R. Obermaisser,
- M. Probst, S. Ring, E. Steiner, C. Thalinger, D. Thuernbeck,
- P. Tomsich, J. Wenninger
+ Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
+ R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
+ C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich, J. Wenninger,
+ Institut f. Computersprachen - TU Wien
This file is part of CACAO.
Contact: cacao@complang.tuwien.ac.at
- Authors: ?
+ Authors: Reinhard Grafl
+ Roman Obermaisser
- $Id: jni.h 1621 2004-11-30 13:06:55Z twisti $
+ Changes: Christian Thalinger
+
+ $Id: jni.h 2129 2005-03-29 22:27:08Z twisti $
*/
#ifndef _JNI_H
#define _JNI_H
+#include <stdio.h>
#include <stdarg.h>
#include "types.h"
+#include "vm/field.h"
#include "vm/global.h"
+#include "vm/method.h"
+
+/* JNI versions */
-#define JNI_VERSION 0x00010002
+#define JNI_VERSION_1_1 0x00010001
+#define JNI_VERSION_1_2 0x00010002
+#define JNI_VERSION_1_4 0x00010004
#define JNIEXPORT
#define JNICALL
+/* JNI-Boolean */
+
+#define JNI_FALSE 0
+#define JNI_TRUE 1
+
+
+/* Error codes */
+
+#define JNI_OK 0
+#define JNI_ERR (-1)
+#define JNI_EDETACHED (-2) /* thread detached from the VM */
+#define JNI_EVERSION (-3) /* JNI version error */
+
+
/* JNI datatypes */
+#define jboolean u1
+#define jbyte s1
+#define jchar u2
+#define jshort s2
+#define jint s4
+#define jlong s8
+#define jfloat float
+#define jdouble double
+
#define jobject java_objectheader*
#define jclass struct classinfo*
#define jthrowable jobject
#define jfloatArray java_floatarray*
#define jobjectArray java_objectarray*
#define jstring jobject
-#define jint s4
-#define jchar s2
-#define jboolean u1
-#define jbyte s1
-#define jshort s2
-#define jlong s8
-#define jfloat float
-#define jdouble double
+
#define jsize jint
#define jfieldID fieldinfo*
#define jmethodID methodinfo*
-typedef struct _JavaVM* JavaVM;
-
-struct _JavaVM{
- void *(*reserved0) ();
- void *(*reserved1) ();
- void *(*reserved2) ();
- jint (*DestroyJavaVM) (JavaVM *);
- jint (*AttachCurrentThread) (JavaVM *, void **, void *);
- jint (*DetachCurrentThread) (JavaVM *);
- jint (*GetEnv) (JavaVM *, void **, jint);
- jint (*AttachCurrentThreadAsDaemon) (JavaVM *, void **, void *);
-
-};
-
-
typedef union jvalue {
jboolean z;
jbyte b;
jobject l;
} jvalue;
-/* JNI-Boolean */
-#define JNI_FALSE 0
-#define JNI_TRUE 1
+typedef struct JDK1_1InitArgs JDK1_1InitArgs;
+
+struct JDK1_1InitArgs {
+ /* The first two fields were reserved in JDK 1.1, and
+ formally introduced in JDK 1.1.2. */
+ /* Java VM version */
+ jint version;
+
+ /* System properties. */
+ char **properties;
+
+ /* whether to check the Java source files are newer than
+ * compiled class files. */
+ jint checkSource;
+
+ /* maximum native stack size of Java-created threads. */
+ jint nativeStackSize;
+
+ /* maximum Java stack size. */
+ jint javaStackSize;
+
+ /* initial heap size. */
+ jint minHeapSize;
+
+ /* maximum heap size. */
+ jint maxHeapSize;
+
+ /* controls whether Java byte code should be verified:
+ * 0 -- none, 1 -- remotely loaded code, 2 -- all code. */
+ jint verifyMode;
+
+ /* the local directory path for class loading. */
+ const char *classpath;
+
+ /* a hook for a function that redirects all VM messages. */
+ jint (*vfprintf)(FILE *fp, const char *format,
+ va_list args);
+
+ /* a VM exit hook. */
+ void (*exit)(jint code);
+
+ /* a VM abort hook. */
+ void (*abort)();
+
+ /* whether to enable class GC. */
+ jint enableClassGC;
+
+ /* whether GC messages will appear. */
+ jint enableVerboseGC;
+
+ /* whether asynchronous GC is allowed. */
+ jint disableAsyncGC;
+
+ /* Three reserved fields. */
+ jint reserved0;
+ jint reserved1;
+ jint reserved2;
+};
+
+
+typedef struct JDK1_1AttachArgs {
+ /*
+ * JDK 1.1 does not need any arguments to attach a
+ * native thread. The padding is here to satisfy the C
+ * compiler which does not permit empty structures.
+ */
+ void *__padding;
+} JDK1_1AttachArgs;
+
+
+typedef struct JNIInvokeInterface *JavaVM;
+/* typedef struct _JavaVM *JavaVM; */
+
+/* struct _JavaVM { */
+struct JNIInvokeInterface {
+ void *(*reserved0) ();
+ void *(*reserved1) ();
+ void *(*reserved2) ();
+ jint (*DestroyJavaVM) (JavaVM *);
+ jint (*AttachCurrentThread) (JavaVM *, void **, void *);
+ jint (*DetachCurrentThread) (JavaVM *);
+ jint (*GetEnv) (JavaVM *, void **, jint);
+ jint (*AttachCurrentThreadAsDaemon) (JavaVM *, void **, void *);
+};
+
/* native method name, signature and function pointer for use in RegisterNatives */
Java VM Interface
*/
-typedef struct JNI_Table *JNIEnv;
+typedef struct JNINativeInterface *JNIEnv;
+/* typedef struct JNI_Table *JNIEnv; */
-struct JNI_Table {
-
+/* struct JNI_Table { */
+struct JNINativeInterface {
/* reserverd for future JNI-functions */
void *unused0;
void *unused1;
jobject (*ToReflectedMethod) (JNIEnv*, jclass cls, jmethodID methodID, jboolean isStatic);
jclass (*GetSuperclass) (JNIEnv*, jclass sub);
- jboolean (*IsAssignableForm) (JNIEnv*, jclass sub, jclass sup);
+ jboolean (*IsAssignableFrom) (JNIEnv*, jclass sub, jclass sup);
jobject (*ToReflectedField) (JNIEnv*, jclass cls, jfieldID fieldID, jboolean isStatic);
const jchar *(*GetStringChars) (JNIEnv*, jstring str, jboolean *isCopy);
void (*ReleaseStringChars) (JNIEnv*, jstring str, const jchar *chars);
- jstring (*NewStringUTF) (JNIEnv*, const char *utf);
+ jstring (*NewStringUTF) (JNIEnv*, const char *bytes);
jsize (*GetStringUTFLength) (JNIEnv*, jstring str);
const char* (*GetStringUTFChars) (JNIEnv*, jstring str, jboolean *isCopy);
void (*ReleaseStringUTFChars) (JNIEnv*, jstring str, const char* chars);
jint (*MonitorExit) (JNIEnv*, jobject obj);
/* JavaVM interface */
+
jint (*GetJavaVM) (JNIEnv*, JavaVM **vm);
+ /* new JNI 1.2 functions */
+
void (*GetStringRegion) (JNIEnv*, jstring str, jsize start, jsize len, jchar *buf);
void (*GetStringUTFRegion) (JNIEnv*, jstring str, jsize start, jsize len, char *buf);
void (*DeleteWeakGlobalRef) (JNIEnv*, jweak ref);
jboolean (*ExceptionCheck) (JNIEnv*);
-};
+ /* new JNI 1.4 functions */
-/* the active JNI function table */
+ jobject (*NewDirectByteBuffer) (JNIEnv *env, void* address, jlong capacity);
+ void* (*GetDirectBufferAddress) (JNIEnv *env, jobject buf);
+ jlong (*GetDirectBufferCapacity) (JNIEnv *env, jobject buf);
+};
-extern JNIEnv env;
-extern JavaVM javaVM;
-extern struct JNI_Table envTable;
+/* function prototypes ********************************************************/
-/* function prototypes */
+jint JNI_GetDefaultJavaVMInitArgs(void *vm_args);
+jint JNI_GetCreatedJavaVMs(JavaVM **vmBuf, jsize bufLen, jsize *nVMs);
+jint JNI_CreateJavaVM(JavaVM **p_vm, JNIEnv **p_env, void *vm_args);
jfieldID getFieldID_critical(JNIEnv *env, jclass clazz, char *name, char *sig);
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