/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*      https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

/*
* JNI specification, as defined by Sun:
* https://java.sun.com/javase/6/docs/technotes/guides/jni/spec/jniTOC.html
*
* Everything here is expected to be VM-neutral.
*/

#ifndef JNI_H_
#define JNI_H_


#if __TINYC__
typedef char* va_list;
#else
#include <stdarg.h>
#endif

/*
* Primitive types that match up with Java equivalents.
*/
#ifdef HAVE_INTTYPES_H
# include <inttypes.h>      /* C99 */
typedef uint8_t         jboolean;       /* unsigned 8 bits */
typedef int8_t          jbyte;          /* signed 8 bits */
typedef uint16_t        jchar;          /* unsigned 16 bits */
typedef int16_t         jshort;         /* signed 16 bits */
typedef int32_t         jint;           /* signed 32 bits */
typedef int64_t         jlong;          /* signed 64 bits */
typedef float           jfloat;         /* 32-bit IEEE 754 */
typedef double          jdouble;        /* 64-bit IEEE 754 */
#else
typedef unsigned char   jboolean;       /* unsigned 8 bits */
typedef signed char     jbyte;          /* signed 8 bits */
typedef unsigned short  jchar;          /* unsigned 16 bits */
typedef short           jshort;         /* signed 16 bits */
typedef int             jint;           /* signed 32 bits */
typedef long long       jlong;          /* signed 64 bits */
typedef float           jfloat;         /* 32-bit IEEE 754 */
typedef double          jdouble;        /* 64-bit IEEE 754 */
#endif

/* "cardinal indices and sizes" */
typedef jint            jsize;

#ifdef __cplusplus
/*
* Reference types, in C++
*/
class _jobject {};
class _jclass : public _jobject {};
class _jstring : public _jobject {};
class _jarray : public _jobject {};
class _jobjectArray : public _jarray {};
class _jbooleanArray : public _jarray {};
class _jbyteArray : public _jarray {};
class _jcharArray : public _jarray {};
class _jshortArray : public _jarray {};
class _jintArray : public _jarray {};
class _jlongArray : public _jarray {};
class _jfloatArray : public _jarray {};
class _jdoubleArray : public _jarray {};
class _jthrowable : public _jobject {};

typedef _jobject*       jobject;
typedef _jclass*        jclass;
typedef _jstring*       jstring;
typedef _jarray*        jarray;
typedef _jobjectArray*  jobjectArray;
typedef _jbooleanArray* jbooleanArray;
typedef _jbyteArray*    jbyteArray;
typedef _jcharArray*    jcharArray;
typedef _jshortArray*   jshortArray;
typedef _jintArray*     jintArray;
typedef _jlongArray*    jlongArray;
typedef _jfloatArray*   jfloatArray;
typedef _jdoubleArray*  jdoubleArray;
typedef _jthrowable*    jthrowable;
typedef _jobject*       jweak;


#else /* not __cplusplus */

/*  Reference types, in C  */
typedef void*           jobject;
typedef jobject         jclass;
typedef jobject         jstring;
typedef jobject         jarray;
typedef jarray          jobjectArray;
typedef jarray          jbooleanArray;
typedef jarray          jbyteArray;
typedef jarray          jcharArray;
typedef jarray          jshortArray;
typedef jarray          jintArray;
typedef jarray          jlongArray;
typedef jarray          jfloatArray;
typedef jarray          jdoubleArray;
typedef jobject         jthrowable;
typedef jobject         jweak;

#endif /* not __cplusplus */

struct _jfieldID;                       /* opaque structure */
typedef struct _jfieldID* jfieldID;     /* field IDs */

struct _jmethodID;                      /* opaque structure */
typedef struct _jmethodID* jmethodID;   /* method IDs */

struct JNIInvokeInterface;

typedef union jvalue {
	jboolean    z;
	jbyte       b;
	jchar       c;
	jshort      s;
	jint        i;
	jlong       j;
	jfloat      f;
	jdouble     d;
	jobject     l;
} jvalue;

typedef enum jobjectRefType {
	JNIInvalidRefType = 0,
	JNILocalRefType = 1,
	JNIGlobalRefType = 2,
	JNIWeakGlobalRefType = 3
} jobjectRefType;

typedef struct {
	const char* name;
	const char* signature;
	void*       fnPtr;
} JNINativeMethod;

struct _JNIEnv;
struct _JavaVM;
typedef const struct JNINativeInterface* C_JNIEnv;

#if defined(__cplusplus)
typedef _JNIEnv JNIEnv;
typedef _JavaVM JavaVM;
#else
typedef const struct JNINativeInterface* JNIEnv;
typedef const struct JNIInvokeInterface* JavaVM;
#endif

/* Table of interface function pointers.  */
struct JNINativeInterface {
	void*       reserved0;
	void*       reserved1;
	void*       reserved2;
	void*       reserved3;

	jint        (*GetVersion)(JNIEnv *);

	jclass      (*DefineClass)(JNIEnv*, const char*, jobject, const jbyte*,
			jsize);
	jclass      (*FindClass)(JNIEnv*, const char*);

	jmethodID   (*FromReflectedMethod)(JNIEnv*, jobject);
	jfieldID    (*FromReflectedField)(JNIEnv*, jobject);
	/* spec doesn't show jboolean parameter */
	jobject     (*ToReflectedMethod)(JNIEnv*, jclass, jmethodID, jboolean);

	jclass      (*GetSuperclass)(JNIEnv*, jclass);
	jboolean    (*IsAssignableFrom)(JNIEnv*, jclass, jclass);

	/* spec doesn't show jboolean parameter */
	jobject     (*ToReflectedField)(JNIEnv*, jclass, jfieldID, jboolean);

	jint        (*Throw)(JNIEnv*, jthrowable);
	jint        (*ThrowNew)(JNIEnv *, jclass, const char *);
	jthrowable  (*ExceptionOccurred)(JNIEnv*);
	void        (*ExceptionDescribe)(JNIEnv*);
	void        (*ExceptionClear)(JNIEnv*);
	void        (*FatalError)(JNIEnv*, const char*);

	jint        (*PushLocalFrame)(JNIEnv*, jint);
	jobject     (*PopLocalFrame)(JNIEnv*, jobject);

	jobject     (*NewGlobalRef)(JNIEnv*, jobject);
	void        (*DeleteGlobalRef)(JNIEnv*, jobject);
	void        (*DeleteLocalRef)(JNIEnv*, jobject);
	jboolean    (*IsSameObject)(JNIEnv*, jobject, jobject);

	jobject     (*NewLocalRef)(JNIEnv*, jobject);
	jint        (*EnsureLocalCapacity)(JNIEnv*, jint);

	jobject     (*AllocObject)(JNIEnv*, jclass);
	jobject     (*NewObject)(JNIEnv*, jclass, jmethodID, ...);
	jobject     (*NewObjectV)(JNIEnv*, jclass, jmethodID, va_list);
	jobject     (*NewObjectA)(JNIEnv*, jclass, jmethodID, jvalue*);

	jclass      (*GetObjectClass)(JNIEnv*, jobject);
	jboolean    (*IsInstanceOf)(JNIEnv*, jobject, jclass);
	jmethodID   (*GetMethodID)(JNIEnv*, jclass, const char*, const char*);

	jobject     (*CallObjectMethod)(JNIEnv*, jobject, jmethodID, ...);
	jobject     (*CallObjectMethodV)(JNIEnv*, jobject, jmethodID, va_list);
	jobject     (*CallObjectMethodA)(JNIEnv*, jobject, jmethodID, jvalue*);
	jboolean    (*CallBooleanMethod)(JNIEnv*, jobject, jmethodID, ...);
	jboolean    (*CallBooleanMethodV)(JNIEnv*, jobject, jmethodID, va_list);
	jboolean    (*CallBooleanMethodA)(JNIEnv*, jobject, jmethodID, jvalue*);
	jbyte       (*CallByteMethod)(JNIEnv*, jobject, jmethodID, ...);
	jbyte       (*CallByteMethodV)(JNIEnv*, jobject, jmethodID, va_list);
	jbyte       (*CallByteMethodA)(JNIEnv*, jobject, jmethodID, jvalue*);
	jchar       (*CallCharMethod)(JNIEnv*, jobject, jmethodID, ...);
	jchar       (*CallCharMethodV)(JNIEnv*, jobject, jmethodID, va_list);
	jchar       (*CallCharMethodA)(JNIEnv*, jobject, jmethodID, jvalue*);
	jshort      (*CallShortMethod)(JNIEnv*, jobject, jmethodID, ...);
	jshort      (*CallShortMethodV)(JNIEnv*, jobject, jmethodID, va_list);
	jshort      (*CallShortMethodA)(JNIEnv*, jobject, jmethodID, jvalue*);
	jint        (*CallIntMethod)(JNIEnv*, jobject, jmethodID, ...);
	jint        (*CallIntMethodV)(JNIEnv*, jobject, jmethodID, va_list);
	jint        (*CallIntMethodA)(JNIEnv*, jobject, jmethodID, jvalue*);
	jlong       (*CallLongMethod)(JNIEnv*, jobject, jmethodID, ...);
	jlong       (*CallLongMethodV)(JNIEnv*, jobject, jmethodID, va_list);
	jlong       (*CallLongMethodA)(JNIEnv*, jobject, jmethodID, jvalue*);
	jfloat      (*CallFloatMethod)(JNIEnv*, jobject, jmethodID, ...) ;
	jfloat      (*CallFloatMethodV)(JNIEnv*, jobject, jmethodID, va_list) ;
	jfloat      (*CallFloatMethodA)(JNIEnv*, jobject, jmethodID, jvalue*) ;
	jdouble     (*CallDoubleMethod)(JNIEnv*, jobject, jmethodID, ...) ;
	jdouble     (*CallDoubleMethodV)(JNIEnv*, jobject, jmethodID, va_list) ;
	jdouble     (*CallDoubleMethodA)(JNIEnv*, jobject, jmethodID, jvalue*) ;
	void        (*CallVoidMethod)(JNIEnv*, jobject, jmethodID, ...);
	void        (*CallVoidMethodV)(JNIEnv*, jobject, jmethodID, va_list);
	void        (*CallVoidMethodA)(JNIEnv*, jobject, jmethodID, jvalue*);

	jobject     (*CallNonvirtualObjectMethod)(JNIEnv*, jobject, jclass,
			jmethodID, ...);
	jobject     (*CallNonvirtualObjectMethodV)(JNIEnv*, jobject, jclass,
			jmethodID, va_list);
	jobject     (*CallNonvirtualObjectMethodA)(JNIEnv*, jobject, jclass,
			jmethodID, jvalue*);
	jboolean    (*CallNonvirtualBooleanMethod)(JNIEnv*, jobject, jclass,
			jmethodID, ...);
	jboolean    (*CallNonvirtualBooleanMethodV)(JNIEnv*, jobject, jclass,
			jmethodID, va_list);
	jboolean    (*CallNonvirtualBooleanMethodA)(JNIEnv*, jobject, jclass,
			jmethodID, jvalue*);
	jbyte       (*CallNonvirtualByteMethod)(JNIEnv*, jobject, jclass,
			jmethodID, ...);
	jbyte       (*CallNonvirtualByteMethodV)(JNIEnv*, jobject, jclass,
			jmethodID, va_list);
	jbyte       (*CallNonvirtualByteMethodA)(JNIEnv*, jobject, jclass,
			jmethodID, jvalue*);
	jchar       (*CallNonvirtualCharMethod)(JNIEnv*, jobject, jclass,
			jmethodID, ...);
	jchar       (*CallNonvirtualCharMethodV)(JNIEnv*, jobject, jclass,
			jmethodID, va_list);
	jchar       (*CallNonvirtualCharMethodA)(JNIEnv*, jobject, jclass,
			jmethodID, jvalue*);
	jshort      (*CallNonvirtualShortMethod)(JNIEnv*, jobject, jclass,
			jmethodID, ...);
	jshort      (*CallNonvirtualShortMethodV)(JNIEnv*, jobject, jclass,
			jmethodID, va_list);
	jshort      (*CallNonvirtualShortMethodA)(JNIEnv*, jobject, jclass,
			jmethodID, jvalue*);
	jint        (*CallNonvirtualIntMethod)(JNIEnv*, jobject, jclass,
			jmethodID, ...);
	jint        (*CallNonvirtualIntMethodV)(JNIEnv*, jobject, jclass,
			jmethodID, va_list);
	jint        (*CallNonvirtualIntMethodA)(JNIEnv*, jobject, jclass,
			jmethodID, jvalue*);
	jlong       (*CallNonvirtualLongMethod)(JNIEnv*, jobject, jclass,
			jmethodID, ...);
	jlong       (*CallNonvirtualLongMethodV)(JNIEnv*, jobject, jclass,
			jmethodID, va_list);
	jlong       (*CallNonvirtualLongMethodA)(JNIEnv*, jobject, jclass,
			jmethodID, jvalue*);
	jfloat      (*CallNonvirtualFloatMethod)(JNIEnv*, jobject, jclass,
			jmethodID, ...) ;
	jfloat      (*CallNonvirtualFloatMethodV)(JNIEnv*, jobject, jclass,
			jmethodID, va_list) ;
	jfloat      (*CallNonvirtualFloatMethodA)(JNIEnv*, jobject, jclass,
			jmethodID, jvalue*) ;
	jdouble     (*CallNonvirtualDoubleMethod)(JNIEnv*, jobject, jclass,
			jmethodID, ...) ;
	jdouble     (*CallNonvirtualDoubleMethodV)(JNIEnv*, jobject, jclass,
			jmethodID, va_list) ;
	jdouble     (*CallNonvirtualDoubleMethodA)(JNIEnv*, jobject, jclass,
			jmethodID, jvalue*) ;
	void        (*CallNonvirtualVoidMethod)(JNIEnv*, jobject, jclass,
			jmethodID, ...);
	void        (*CallNonvirtualVoidMethodV)(JNIEnv*, jobject, jclass,
			jmethodID, va_list);
	void        (*CallNonvirtualVoidMethodA)(JNIEnv*, jobject, jclass,
			jmethodID, jvalue*);

	jfieldID    (*GetFieldID)(JNIEnv*, jclass, const char*, const char*);

	jobject     (*GetObjectField)(JNIEnv*, jobject, jfieldID);
	jboolean    (*GetBooleanField)(JNIEnv*, jobject, jfieldID);
	jbyte       (*GetByteField)(JNIEnv*, jobject, jfieldID);
	jchar       (*GetCharField)(JNIEnv*, jobject, jfieldID);
	jshort      (*GetShortField)(JNIEnv*, jobject, jfieldID);
	jint        (*GetIntField)(JNIEnv*, jobject, jfieldID);
	jlong       (*GetLongField)(JNIEnv*, jobject, jfieldID);
	jfloat      (*GetFloatField)(JNIEnv*, jobject, jfieldID) ;
	jdouble     (*GetDoubleField)(JNIEnv*, jobject, jfieldID) ;

	void        (*SetObjectField)(JNIEnv*, jobject, jfieldID, jobject);
	void        (*SetBooleanField)(JNIEnv*, jobject, jfieldID, jboolean);
	void        (*SetByteField)(JNIEnv*, jobject, jfieldID, jbyte);
	void        (*SetCharField)(JNIEnv*, jobject, jfieldID, jchar);
	void        (*SetShortField)(JNIEnv*, jobject, jfieldID, jshort);
	void        (*SetIntField)(JNIEnv*, jobject, jfieldID, jint);
	void        (*SetLongField)(JNIEnv*, jobject, jfieldID, jlong);
	void        (*SetFloatField)(JNIEnv*, jobject, jfieldID, jfloat) ;
	void        (*SetDoubleField)(JNIEnv*, jobject, jfieldID, jdouble) ;

	jmethodID   (*GetStaticMethodID)(JNIEnv*, jclass, const char*, const char*);

	jobject     (*CallStaticObjectMethod)(JNIEnv*, jclass, jmethodID, ...);
	jobject     (*CallStaticObjectMethodV)(JNIEnv*, jclass, jmethodID, va_list);
	jobject     (*CallStaticObjectMethodA)(JNIEnv*, jclass, jmethodID, jvalue*);
	jboolean    (*CallStaticBooleanMethod)(JNIEnv*, jclass, jmethodID, ...);
	jboolean    (*CallStaticBooleanMethodV)(JNIEnv*, jclass, jmethodID,
			va_list);
	jboolean    (*CallStaticBooleanMethodA)(JNIEnv*, jclass, jmethodID,
			jvalue*);
	jbyte       (*CallStaticByteMethod)(JNIEnv*, jclass, jmethodID, ...);
	jbyte       (*CallStaticByteMethodV)(JNIEnv*, jclass, jmethodID, va_list);
	jbyte       (*CallStaticByteMethodA)(JNIEnv*, jclass, jmethodID, jvalue*);
	jchar       (*CallStaticCharMethod)(JNIEnv*, jclass, jmethodID, ...);
	jchar       (*CallStaticCharMethodV)(JNIEnv*, jclass, jmethodID, va_list);
	jchar       (*CallStaticCharMethodA)(JNIEnv*, jclass, jmethodID, jvalue*);
	jshort      (*CallStaticShortMethod)(JNIEnv*, jclass, jmethodID, ...);
	jshort      (*CallStaticShortMethodV)(JNIEnv*, jclass, jmethodID, va_list);
	jshort      (*CallStaticShortMethodA)(JNIEnv*, jclass, jmethodID, jvalue*);
	jint        (*CallStaticIntMethod)(JNIEnv*, jclass, jmethodID, ...);
	jint        (*CallStaticIntMethodV)(JNIEnv*, jclass, jmethodID, va_list);
	jint        (*CallStaticIntMethodA)(JNIEnv*, jclass, jmethodID, jvalue*);
	jlong       (*CallStaticLongMethod)(JNIEnv*, jclass, jmethodID, ...);
	jlong       (*CallStaticLongMethodV)(JNIEnv*, jclass, jmethodID, va_list);
	jlong       (*CallStaticLongMethodA)(JNIEnv*, jclass, jmethodID, jvalue*);
	jfloat      (*CallStaticFloatMethod)(JNIEnv*, jclass, jmethodID, ...) ;
	jfloat      (*CallStaticFloatMethodV)(JNIEnv*, jclass, jmethodID, va_list) ;
	jfloat      (*CallStaticFloatMethodA)(JNIEnv*, jclass, jmethodID, jvalue*) ;
	jdouble     (*CallStaticDoubleMethod)(JNIEnv*, jclass, jmethodID, ...) ;
	jdouble     (*CallStaticDoubleMethodV)(JNIEnv*, jclass, jmethodID, va_list) ;
	jdouble     (*CallStaticDoubleMethodA)(JNIEnv*, jclass, jmethodID, jvalue*) ;
	void        (*CallStaticVoidMethod)(JNIEnv*, jclass, jmethodID, ...);
	void        (*CallStaticVoidMethodV)(JNIEnv*, jclass, jmethodID, va_list);
	void        (*CallStaticVoidMethodA)(JNIEnv*, jclass, jmethodID, jvalue*);

	jfieldID    (*GetStaticFieldID)(JNIEnv*, jclass, const char*,
			const char*);

	jobject     (*GetStaticObjectField)(JNIEnv*, jclass, jfieldID);
	jboolean    (*GetStaticBooleanField)(JNIEnv*, jclass, jfieldID);
	jbyte       (*GetStaticByteField)(JNIEnv*, jclass, jfieldID);
	jchar       (*GetStaticCharField)(JNIEnv*, jclass, jfieldID);
	jshort      (*GetStaticShortField)(JNIEnv*, jclass, jfieldID);
	jint        (*GetStaticIntField)(JNIEnv*, jclass, jfieldID);
	jlong       (*GetStaticLongField)(JNIEnv*, jclass, jfieldID);
	jfloat      (*GetStaticFloatField)(JNIEnv*, jclass, jfieldID) ;
	jdouble     (*GetStaticDoubleField)(JNIEnv*, jclass, jfieldID) ;

	void        (*SetStaticObjectField)(JNIEnv*, jclass, jfieldID, jobject);
	void        (*SetStaticBooleanField)(JNIEnv*, jclass, jfieldID, jboolean);
	void        (*SetStaticByteField)(JNIEnv*, jclass, jfieldID, jbyte);
	void        (*SetStaticCharField)(JNIEnv*, jclass, jfieldID, jchar);
	void        (*SetStaticShortField)(JNIEnv*, jclass, jfieldID, jshort);
	void        (*SetStaticIntField)(JNIEnv*, jclass, jfieldID, jint);
	void        (*SetStaticLongField)(JNIEnv*, jclass, jfieldID, jlong);
	void        (*SetStaticFloatField)(JNIEnv*, jclass, jfieldID, jfloat) ;
	void        (*SetStaticDoubleField)(JNIEnv*, jclass, jfieldID, jdouble) ;

	jstring     (*NewString)(JNIEnv*, const jchar*, jsize);
	jsize       (*GetStringLength)(JNIEnv*, jstring);
	const jchar* (*GetStringChars)(JNIEnv*, jstring, jboolean*);
	void        (*ReleaseStringChars)(JNIEnv*, jstring, const jchar*);
	jstring     (*NewStringUTF)(JNIEnv*, const char*);
	jsize       (*GetStringUTFLength)(JNIEnv*, jstring);
	/* JNI spec says this returns const jbyte*, but that's inconsistent */
	const char* (*GetStringUTFChars)(JNIEnv*, jstring, jboolean*);
	void        (*ReleaseStringUTFChars)(JNIEnv*, jstring, const char*);
	jsize       (*GetArrayLength)(JNIEnv*, jarray);
	jobjectArray (*NewObjectArray)(JNIEnv*, jsize, jclass, jobject);
	jobject     (*GetObjectArrayElement)(JNIEnv*, jobjectArray, jsize);
	void        (*SetObjectArrayElement)(JNIEnv*, jobjectArray, jsize, jobject);

	jbooleanArray (*NewBooleanArray)(JNIEnv*, jsize);
	jbyteArray    (*NewByteArray)(JNIEnv*, jsize);
	jcharArray    (*NewCharArray)(JNIEnv*, jsize);
	jshortArray   (*NewShortArray)(JNIEnv*, jsize);
	jintArray     (*NewIntArray)(JNIEnv*, jsize);
	jlongArray    (*NewLongArray)(JNIEnv*, jsize);
	jfloatArray   (*NewFloatArray)(JNIEnv*, jsize);
	jdoubleArray  (*NewDoubleArray)(JNIEnv*, jsize);

	jboolean*   (*GetBooleanArrayElements)(JNIEnv*, jbooleanArray, jboolean*);
	jbyte*      (*GetByteArrayElements)(JNIEnv*, jbyteArray, jboolean*);
	jchar*      (*GetCharArrayElements)(JNIEnv*, jcharArray, jboolean*);
	jshort*     (*GetShortArrayElements)(JNIEnv*, jshortArray, jboolean*);
	jint*       (*GetIntArrayElements)(JNIEnv*, jintArray, jboolean*);
	jlong*      (*GetLongArrayElements)(JNIEnv*, jlongArray, jboolean*);
	jfloat*     (*GetFloatArrayElements)(JNIEnv*, jfloatArray, jboolean*);
	jdouble*    (*GetDoubleArrayElements)(JNIEnv*, jdoubleArray, jboolean*);

	void        (*ReleaseBooleanArrayElements)(JNIEnv*, jbooleanArray,
			jboolean*, jint);
	void        (*ReleaseByteArrayElements)(JNIEnv*, jbyteArray,
			jbyte*, jint);
	void        (*ReleaseCharArrayElements)(JNIEnv*, jcharArray,
			jchar*, jint);
	void        (*ReleaseShortArrayElements)(JNIEnv*, jshortArray,
			jshort*, jint);
	void        (*ReleaseIntArrayElements)(JNIEnv*, jintArray,
			jint*, jint);
	void        (*ReleaseLongArrayElements)(JNIEnv*, jlongArray,
			jlong*, jint);
	void        (*ReleaseFloatArrayElements)(JNIEnv*, jfloatArray,
			jfloat*, jint);
	void        (*ReleaseDoubleArrayElements)(JNIEnv*, jdoubleArray,
			jdouble*, jint);

	void        (*GetBooleanArrayRegion)(JNIEnv*, jbooleanArray,
			jsize, jsize, jboolean*);
	void        (*GetByteArrayRegion)(JNIEnv*, jbyteArray,
			jsize, jsize, jbyte*);
	void        (*GetCharArrayRegion)(JNIEnv*, jcharArray,
			jsize, jsize, jchar*);
	void        (*GetShortArrayRegion)(JNIEnv*, jshortArray,
			jsize, jsize, jshort*);
	void        (*GetIntArrayRegion)(JNIEnv*, jintArray,
			jsize, jsize, jint*);
	void        (*GetLongArrayRegion)(JNIEnv*, jlongArray,
			jsize, jsize, jlong*);
	void        (*GetFloatArrayRegion)(JNIEnv*, jfloatArray,
			jsize, jsize, jfloat*);
	void        (*GetDoubleArrayRegion)(JNIEnv*, jdoubleArray,
			jsize, jsize, jdouble*);

	/* spec shows these without const; some jni.h do, some don't */
	void        (*SetBooleanArrayRegion)(JNIEnv*, jbooleanArray,
			jsize, jsize, const jboolean*);
	void        (*SetByteArrayRegion)(JNIEnv*, jbyteArray,
			jsize, jsize, const jbyte*);
	void        (*SetCharArrayRegion)(JNIEnv*, jcharArray,
			jsize, jsize, const jchar*);
	void        (*SetShortArrayRegion)(JNIEnv*, jshortArray,
			jsize, jsize, const jshort*);
	void        (*SetIntArrayRegion)(JNIEnv*, jintArray,
			jsize, jsize, const jint*);
	void        (*SetLongArrayRegion)(JNIEnv*, jlongArray,
			jsize, jsize, const jlong*);
	void        (*SetFloatArrayRegion)(JNIEnv*, jfloatArray,
			jsize, jsize, const jfloat*);
	void        (*SetDoubleArrayRegion)(JNIEnv*, jdoubleArray,
			jsize, jsize, const jdouble*);

	jint        (*RegisterNatives)(JNIEnv*, jclass, const JNINativeMethod*,
			jint);
	jint        (*UnregisterNatives)(JNIEnv*, jclass);
	jint        (*MonitorEnter)(JNIEnv*, jobject);
	jint        (*MonitorExit)(JNIEnv*, jobject);
	jint        (*GetJavaVM)(JNIEnv*, JavaVM**);

	void        (*GetStringRegion)(JNIEnv*, jstring, jsize, jsize, jchar*);
	void        (*GetStringUTFRegion)(JNIEnv*, jstring, jsize, jsize, char*);

	void*       (*GetPrimitiveArrayCritical)(JNIEnv*, jarray, jboolean*);
	void        (*ReleasePrimitiveArrayCritical)(JNIEnv*, jarray, void*, jint);

	const jchar* (*GetStringCritical)(JNIEnv*, jstring, jboolean*);
	void        (*ReleaseStringCritical)(JNIEnv*, jstring, const jchar*);

	jweak       (*NewWeakGlobalRef)(JNIEnv*, jobject);
	void        (*DeleteWeakGlobalRef)(JNIEnv*, jweak);

	jboolean    (*ExceptionCheck)(JNIEnv*);

	jobject     (*NewDirectByteBuffer)(JNIEnv*, void*, jlong);
	void*       (*GetDirectBufferAddress)(JNIEnv*, jobject);
	jlong       (*GetDirectBufferCapacity)(JNIEnv*, jobject);

	/* added in JNI 1.6 */
	jobjectRefType (*GetObjectRefType)(JNIEnv*, jobject);
};

/*
* C++ object wrapper.
*
* This is usually overlaid on a C struct whose first element is a
* JNINativeInterface*.  We rely somewhat on compiler behavior.
*/
struct _JNIEnv {
	/* do not rename this; it does not seem to be entirely opaque */
	const struct JNINativeInterface* functions;

#if defined(__cplusplus)

	jint GetVersion()
	{ return functions->GetVersion(this); }

	jclass DefineClass(const char *name, jobject loader, const jbyte* buf,
			jsize bufLen)
	{ return functions->DefineClass(this, name, loader, buf, bufLen); }

	jclass FindClass(const char* name)
	{ return functions->FindClass(this, name); }

	jmethodID FromReflectedMethod(jobject method)
	{ return functions->FromReflectedMethod(this, method); }

	jfieldID FromReflectedField(jobject field)
	{ return functions->FromReflectedField(this, field); }

	jobject ToReflectedMethod(jclass cls, jmethodID methodID, jboolean isStatic)
	{ return functions->ToReflectedMethod(this, cls, methodID, isStatic); }

	jclass GetSuperclass(jclass clazz)
	{ return functions->GetSuperclass(this, clazz); }

	jboolean IsAssignableFrom(jclass clazz1, jclass clazz2)
	{ return functions->IsAssignableFrom(this, clazz1, clazz2); }

	jobject ToReflectedField(jclass cls, jfieldID fieldID, jboolean isStatic)
	{ return functions->ToReflectedField(this, cls, fieldID, isStatic); }

	jint Throw(jthrowable obj)
	{ return functions->Throw(this, obj); }

	jint ThrowNew(jclass clazz, const char* message)
	{ return functions->ThrowNew(this, clazz, message); }

	jthrowable ExceptionOccurred()
	{ return functions->ExceptionOccurred(this); }

	void ExceptionDescribe()
	{ functions->ExceptionDescribe(this); }

	void ExceptionClear()
	{ functions->ExceptionClear(this); }

	void FatalError(const char* msg)
	{ functions->FatalError(this, msg); }

	jint PushLocalFrame(jint capacity)
	{ return functions->PushLocalFrame(this, capacity); }

	jobject PopLocalFrame(jobject result)
	{ return functions->PopLocalFrame(this, result); }

	jobject NewGlobalRef(jobject obj)
	{ return functions->NewGlobalRef(this, obj); }

	void DeleteGlobalRef(jobject globalRef)
	{ functions->DeleteGlobalRef(this, globalRef); }

	void DeleteLocalRef(jobject localRef)
	{ functions->DeleteLocalRef(this, localRef); }

	jboolean IsSameObject(jobject ref1, jobject ref2)
	{ return functions->IsSameObject(this, ref1, ref2); }

	jobject NewLocalRef(jobject ref)
	{ return functions->NewLocalRef(this, ref); }

	jint EnsureLocalCapacity(jint capacity)
	{ return functions->EnsureLocalCapacity(this, capacity); }

	jobject AllocObject(jclass clazz)
	{ return functions->AllocObject(this, clazz); }

	jobject NewObject(jclass clazz, jmethodID methodID, ...)
	{
		va_list args;
		va_start(args, methodID);
		jobject result = functions->NewObjectV(this, clazz, methodID, args);
		va_end(args);
		return result;
	}

	jobject NewObjectV(jclass clazz, jmethodID methodID, va_list args)
	{ return functions->NewObjectV(this, clazz, methodID, args); }

	jobject NewObjectA(jclass clazz, jmethodID methodID, jvalue* args)
	{ return functions->NewObjectA(this, clazz, methodID, args); }

	jclass GetObjectClass(jobject obj)
	{ return functions->GetObjectClass(this, obj); }

	jboolean IsInstanceOf(jobject obj, jclass clazz)
	{ return functions->IsInstanceOf(this, obj, clazz); }

	jmethodID GetMethodID(jclass clazz, const char* name, const char* sig)
	{ return functions->GetMethodID(this, clazz, name, sig); }

#define CALL_TYPE_METHOD(_jtype, _jname)                                    \
	\
	_jtype Call##_jname##Method(jobject obj, jmethodID methodID, ...)       \
	{                                                                       \
		_jtype result;                                                      \
		va_list args;                                                       \
		va_start(args, methodID);                                           \
		result = functions->Call##_jname##MethodV(this, obj, methodID,      \
				args);                                                  \
		va_end(args);                                                       \
		return result;                                                      \
	}
#define CALL_TYPE_METHODV(_jtype, _jname)                                   \
	\
	_jtype Call##_jname##MethodV(jobject obj, jmethodID methodID,           \
			va_list args)                                                       \
	{ return functions->Call##_jname##MethodV(this, obj, methodID, args); }
#define CALL_TYPE_METHODA(_jtype, _jname)                                   \
	\
	_jtype Call##_jname##MethodA(jobject obj, jmethodID methodID,           \
			jvalue* args)                                                       \
	{ return functions->Call##_jname##MethodA(this, obj, methodID, args); }

#define CALL_TYPE(_jtype, _jname)                                           \
	CALL_TYPE_METHOD(_jtype, _jname)                                        \
	CALL_TYPE_METHODV(_jtype, _jname)                                       \
	CALL_TYPE_METHODA(_jtype, _jname)

	CALL_TYPE(jobject, Object)
		CALL_TYPE(jboolean, Boolean)
		CALL_TYPE(jbyte, Byte)
		CALL_TYPE(jchar, Char)
		CALL_TYPE(jshort, Short)
		CALL_TYPE(jint, Int)
		CALL_TYPE(jlong, Long)
		CALL_TYPE(jfloat, Float)
		CALL_TYPE(jdouble, Double)

		void CallVoidMethod(jobject obj, jmethodID methodID, ...)
		{
			va_list args;
			va_start(args, methodID);
			functions->CallVoidMethodV(this, obj, methodID, args);
			va_end(args);
		}
	void CallVoidMethodV(jobject obj, jmethodID methodID, va_list args)
	{ functions->CallVoidMethodV(this, obj, methodID, args); }
	void CallVoidMethodA(jobject obj, jmethodID methodID, jvalue* args)
	{ functions->CallVoidMethodA(this, obj, methodID, args); }

#define CALL_NONVIRT_TYPE_METHOD(_jtype, _jname)                            \
	\
	_jtype CallNonvirtual##_jname##Method(jobject obj, jclass clazz,        \
			jmethodID methodID, ...)                                            \
	{                                                                       \
		_jtype result;                                                      \
		va_list args;                                                       \
		va_start(args, methodID);                                           \
		result = functions->CallNonvirtual##_jname##MethodV(this, obj,      \
				clazz, methodID, args);                                 \
		va_end(args);                                                       \
		return result;                                                      \
	}
#define CALL_NONVIRT_TYPE_METHODV(_jtype, _jname)                           \
	\
	_jtype CallNonvirtual##_jname##MethodV(jobject obj, jclass clazz,       \
			jmethodID methodID, va_list args)                                   \
	{ return functions->CallNonvirtual##_jname##MethodV(this, obj, clazz,   \
			methodID, args); }
#define CALL_NONVIRT_TYPE_METHODA(_jtype, _jname)                           \
	\
	_jtype CallNonvirtual##_jname##MethodA(jobject obj, jclass clazz,       \
			jmethodID methodID, jvalue* args)                                   \
	{ return functions->CallNonvirtual##_jname##MethodA(this, obj, clazz,   \
			methodID, args); }

#define CALL_NONVIRT_TYPE(_jtype, _jname)                                   \
	CALL_NONVIRT_TYPE_METHOD(_jtype, _jname)                                \
	CALL_NONVIRT_TYPE_METHODV(_jtype, _jname)                               \
	CALL_NONVIRT_TYPE_METHODA(_jtype, _jname)

	CALL_NONVIRT_TYPE(jobject, Object)
		CALL_NONVIRT_TYPE(jboolean, Boolean)
		CALL_NONVIRT_TYPE(jbyte, Byte)
		CALL_NONVIRT_TYPE(jchar, Char)
		CALL_NONVIRT_TYPE(jshort, Short)
		CALL_NONVIRT_TYPE(jint, Int)
		CALL_NONVIRT_TYPE(jlong, Long)
		CALL_NONVIRT_TYPE(jfloat, Float)
		CALL_NONVIRT_TYPE(jdouble, Double)

		void CallNonvirtualVoidMethod(jobject obj, jclass clazz,
				jmethodID methodID, ...)
		{
			va_list args;
			va_start(args, methodID);
			functions->CallNonvirtualVoidMethodV(this, obj, clazz, methodID, args);
			va_end(args);
		}
	void CallNonvirtualVoidMethodV(jobject obj, jclass clazz,
			jmethodID methodID, va_list args)
	{ functions->CallNonvirtualVoidMethodV(this, obj, clazz, methodID, args); }
	void CallNonvirtualVoidMethodA(jobject obj, jclass clazz,
			jmethodID methodID, jvalue* args)
	{ functions->CallNonvirtualVoidMethodA(this, obj, clazz, methodID, args); }

	jfieldID GetFieldID(jclass clazz, const char* name, const char* sig)
	{ return functions->GetFieldID(this, clazz, name, sig); }

	jobject GetObjectField(jobject obj, jfieldID fieldID)
	{ return functions->GetObjectField(this, obj, fieldID); }
	jboolean GetBooleanField(jobject obj, jfieldID fieldID)
	{ return functions->GetBooleanField(this, obj, fieldID); }
	jbyte GetByteField(jobject obj, jfieldID fieldID)
	{ return functions->GetByteField(this, obj, fieldID); }
	jchar GetCharField(jobject obj, jfieldID fieldID)
	{ return functions->GetCharField(this, obj, fieldID); }
	jshort GetShortField(jobject obj, jfieldID fieldID)
	{ return functions->GetShortField(this, obj, fieldID); }
	jint GetIntField(jobject obj, jfieldID fieldID)
	{ return functions->GetIntField(this, obj, fieldID); }
	jlong GetLongField(jobject obj, jfieldID fieldID)
	{ return functions->GetLongField(this, obj, fieldID); }

	jfloat GetFloatField(jobject obj, jfieldID fieldID)
	{ return functions->GetFloatField(this, obj, fieldID); }

	jdouble GetDoubleField(jobject obj, jfieldID fieldID)
	{ return functions->GetDoubleField(this, obj, fieldID); }

	void SetObjectField(jobject obj, jfieldID fieldID, jobject value)
	{ functions->SetObjectField(this, obj, fieldID, value); }
	void SetBooleanField(jobject obj, jfieldID fieldID, jboolean value)
	{ functions->SetBooleanField(this, obj, fieldID, value); }
	void SetByteField(jobject obj, jfieldID fieldID, jbyte value)
	{ functions->SetByteField(this, obj, fieldID, value); }
	void SetCharField(jobject obj, jfieldID fieldID, jchar value)
	{ functions->SetCharField(this, obj, fieldID, value); }
	void SetShortField(jobject obj, jfieldID fieldID, jshort value)
	{ functions->SetShortField(this, obj, fieldID, value); }
	void SetIntField(jobject obj, jfieldID fieldID, jint value)
	{ functions->SetIntField(this, obj, fieldID, value); }
	void SetLongField(jobject obj, jfieldID fieldID, jlong value)
	{ functions->SetLongField(this, obj, fieldID, value); }

	void SetFloatField(jobject obj, jfieldID fieldID, jfloat value)
	{ functions->SetFloatField(this, obj, fieldID, value); }

	void SetDoubleField(jobject obj, jfieldID fieldID, jdouble value)
	{ functions->SetDoubleField(this, obj, fieldID, value); }

	jmethodID GetStaticMethodID(jclass clazz, const char* name, const char* sig)
	{ return functions->GetStaticMethodID(this, clazz, name, sig); }

#define CALL_STATIC_TYPE_METHOD(_jtype, _jname)                             \
	\
	_jtype CallStatic##_jname##Method(jclass clazz, jmethodID methodID,     \
			...)                                                                \
	{                                                                       \
		_jtype result;                                                      \
		va_list args;                                                       \
		va_start(args, methodID);                                           \
		result = functions->CallStatic##_jname##MethodV(this, clazz,        \
				methodID, args);                                        \
		va_end(args);                                                       \
		return result;                                                      \
	}
#define CALL_STATIC_TYPE_METHODV(_jtype, _jname)                            \
	\
	_jtype CallStatic##_jname##MethodV(jclass clazz, jmethodID methodID,    \
			va_list args)                                                       \
	{ return functions->CallStatic##_jname##MethodV(this, clazz, methodID,  \
			args); }
#define CALL_STATIC_TYPE_METHODA(_jtype, _jname)                            \
	\
	_jtype CallStatic##_jname##MethodA(jclass clazz, jmethodID methodID,    \
			jvalue* args)                                                       \
	{ return functions->CallStatic##_jname##MethodA(this, clazz, methodID,  \
			args); }

#define CALL_STATIC_TYPE(_jtype, _jname)                                    \
	CALL_STATIC_TYPE_METHOD(_jtype, _jname)                                 \
	CALL_STATIC_TYPE_METHODV(_jtype, _jname)                                \
	CALL_STATIC_TYPE_METHODA(_jtype, _jname)

	CALL_STATIC_TYPE(jobject, Object)
		CALL_STATIC_TYPE(jboolean, Boolean)
		CALL_STATIC_TYPE(jbyte, Byte)
		CALL_STATIC_TYPE(jchar, Char)
		CALL_STATIC_TYPE(jshort, Short)
		CALL_STATIC_TYPE(jint, Int)
		CALL_STATIC_TYPE(jlong, Long)
		CALL_STATIC_TYPE(jfloat, Float)
		CALL_STATIC_TYPE(jdouble, Double)

		void CallStaticVoidMethod(jclass clazz, jmethodID methodID, ...)
		{
			va_list args;
			va_start(args, methodID);
			functions->CallStaticVoidMethodV(this, clazz, methodID, args);
			va_end(args);
		}
	void CallStaticVoidMethodV(jclass clazz, jmethodID methodID, va_list args)
	{ functions->CallStaticVoidMethodV(this, clazz, methodID, args); }
	void CallStaticVoidMethodA(jclass clazz, jmethodID methodID, jvalue* args)
	{ functions->CallStaticVoidMethodA(this, clazz, methodID, args); }

	jfieldID GetStaticFieldID(jclass clazz, const char* name, const char* sig)
	{ return functions->GetStaticFieldID(this, clazz, name, sig); }

	jobject GetStaticObjectField(jclass clazz, jfieldID fieldID)
	{ return functions->GetStaticObjectField(this, clazz, fieldID); }
	jboolean GetStaticBooleanField(jclass clazz, jfieldID fieldID)
	{ return functions->GetStaticBooleanField(this, clazz, fieldID); }
	jbyte GetStaticByteField(jclass clazz, jfieldID fieldID)
	{ return functions->GetStaticByteField(this, clazz, fieldID); }
	jchar GetStaticCharField(jclass clazz, jfieldID fieldID)
	{ return functions->GetStaticCharField(this, clazz, fieldID); }
	jshort GetStaticShortField(jclass clazz, jfieldID fieldID)
	{ return functions->GetStaticShortField(this, clazz, fieldID); }
	jint GetStaticIntField(jclass clazz, jfieldID fieldID)
	{ return functions->GetStaticIntField(this, clazz, fieldID); }
	jlong GetStaticLongField(jclass clazz, jfieldID fieldID)
	{ return functions->GetStaticLongField(this, clazz, fieldID); }

	jfloat GetStaticFloatField(jclass clazz, jfieldID fieldID)
	{ return functions->GetStaticFloatField(this, clazz, fieldID); }

	jdouble GetStaticDoubleField(jclass clazz, jfieldID fieldID)
	{ return functions->GetStaticDoubleField(this, clazz, fieldID); }

	void SetStaticObjectField(jclass clazz, jfieldID fieldID, jobject value)
	{ functions->SetStaticObjectField(this, clazz, fieldID, value); }
	void SetStaticBooleanField(jclass clazz, jfieldID fieldID, jboolean value)
	{ functions->SetStaticBooleanField(this, clazz, fieldID, value); }
	void SetStaticByteField(jclass clazz, jfieldID fieldID, jbyte value)
	{ functions->SetStaticByteField(this, clazz, fieldID, value); }
	void SetStaticCharField(jclass clazz, jfieldID fieldID, jchar value)
	{ functions->SetStaticCharField(this, clazz, fieldID, value); }
	void SetStaticShortField(jclass clazz, jfieldID fieldID, jshort value)
	{ functions->SetStaticShortField(this, clazz, fieldID, value); }
	void SetStaticIntField(jclass clazz, jfieldID fieldID, jint value)
	{ functions->SetStaticIntField(this, clazz, fieldID, value); }
	void SetStaticLongField(jclass clazz, jfieldID fieldID, jlong value)
	{ functions->SetStaticLongField(this, clazz, fieldID, value); }

	void SetStaticFloatField(jclass clazz, jfieldID fieldID, jfloat value)
	{ functions->SetStaticFloatField(this, clazz, fieldID, value); }

	void SetStaticDoubleField(jclass clazz, jfieldID fieldID, jdouble value)
	{ functions->SetStaticDoubleField(this, clazz, fieldID, value); }

	jstring NewString(const jchar* unicodeChars, jsize len)
	{ return functions->NewString(this, unicodeChars, len); }

	jsize GetStringLength(jstring string)
	{ return functions->GetStringLength(this, string); }

	const jchar* GetStringChars(jstring string, jboolean* isCopy)
	{ return functions->GetStringChars(this, string, isCopy); }

	void ReleaseStringChars(jstring string, const jchar* chars)
	{ functions->ReleaseStringChars(this, string, chars); }

	jstring NewStringUTF(const char* bytes)
	{ return functions->NewStringUTF(this, bytes); }

	jsize GetStringUTFLength(jstring string)
	{ return functions->GetStringUTFLength(this, string); }

	const char* GetStringUTFChars(jstring string, jboolean* isCopy)
	{ return functions->GetStringUTFChars(this, string, isCopy); }

	void ReleaseStringUTFChars(jstring string, const char* utf)
	{ functions->ReleaseStringUTFChars(this, string, utf); }

	jsize GetArrayLength(jarray array)
	{ return functions->GetArrayLength(this, array); }

	jobjectArray NewObjectArray(jsize length, jclass elementClass,
			jobject initialElement)
	{ return functions->NewObjectArray(this, length, elementClass,
			initialElement); }

	jobject GetObjectArrayElement(jobjectArray array, jsize index)
	{ return functions->GetObjectArrayElement(this, array, index); }

	void SetObjectArrayElement(jobjectArray array, jsize index, jobject value)
	{ functions->SetObjectArrayElement(this, array, index, value); }

	jbooleanArray NewBooleanArray(jsize length)
	{ return functions->NewBooleanArray(this, length); }
	jbyteArray NewByteArray(jsize length)
	{ return functions->NewByteArray(this, length); }
	jcharArray NewCharArray(jsize length)
	{ return functions->NewCharArray(this, length); }
	jshortArray NewShortArray(jsize length)
	{ return functions->NewShortArray(this, length); }
	jintArray NewIntArray(jsize length)
	{ return functions->NewIntArray(this, length); }
	jlongArray NewLongArray(jsize length)
	{ return functions->NewLongArray(this, length); }
	jfloatArray NewFloatArray(jsize length)
	{ return functions->NewFloatArray(this, length); }
	jdoubleArray NewDoubleArray(jsize length)
	{ return functions->NewDoubleArray(this, length); }

	jboolean* GetBooleanArrayElements(jbooleanArray array, jboolean* isCopy)
	{ return functions->GetBooleanArrayElements(this, array, isCopy); }
	jbyte* GetByteArrayElements(jbyteArray array, jboolean* isCopy)
	{ return functions->GetByteArrayElements(this, array, isCopy); }
	jchar* GetCharArrayElements(jcharArray array, jboolean* isCopy)
	{ return functions->GetCharArrayElements(this, array, isCopy); }
	jshort* GetShortArrayElements(jshortArray array, jboolean* isCopy)
	{ return functions->GetShortArrayElements(this, array, isCopy); }
	jint* GetIntArrayElements(jintArray array, jboolean* isCopy)
	{ return functions->GetIntArrayElements(this, array, isCopy); }
	jlong* GetLongArrayElements(jlongArray array, jboolean* isCopy)
	{ return functions->GetLongArrayElements(this, array, isCopy); }
	jfloat* GetFloatArrayElements(jfloatArray array, jboolean* isCopy)
	{ return functions->GetFloatArrayElements(this, array, isCopy); }
	jdouble* GetDoubleArrayElements(jdoubleArray array, jboolean* isCopy)
	{ return functions->GetDoubleArrayElements(this, array, isCopy); }

	void ReleaseBooleanArrayElements(jbooleanArray array, jboolean* elems,
			jint mode)
	{ functions->ReleaseBooleanArrayElements(this, array, elems, mode); }
	void ReleaseByteArrayElements(jbyteArray array, jbyte* elems,
			jint mode)
	{ functions->ReleaseByteArrayElements(this, array, elems, mode); }
	void ReleaseCharArrayElements(jcharArray array, jchar* elems,
			jint mode)
	{ functions->ReleaseCharArrayElements(this, array, elems, mode); }
	void ReleaseShortArrayElements(jshortArray array, jshort* elems,
			jint mode)
	{ functions->ReleaseShortArrayElements(this, array, elems, mode); }
	void ReleaseIntArrayElements(jintArray array, jint* elems,
			jint mode)
	{ functions->ReleaseIntArrayElements(this, array, elems, mode); }
	void ReleaseLongArrayElements(jlongArray array, jlong* elems,
			jint mode)
	{ functions->ReleaseLongArrayElements(this, array, elems, mode); }
	void ReleaseFloatArrayElements(jfloatArray array, jfloat* elems,
			jint mode)
	{ functions->ReleaseFloatArrayElements(this, array, elems, mode); }
	void ReleaseDoubleArrayElements(jdoubleArray array, jdouble* elems,
			jint mode)
	{ functions->ReleaseDoubleArrayElements(this, array, elems, mode); }

	void GetBooleanArrayRegion(jbooleanArray array, jsize start, jsize len,
			jboolean* buf)
	{ functions->GetBooleanArrayRegion(this, array, start, len, buf); }
	void GetByteArrayRegion(jbyteArray array, jsize start, jsize len,
			jbyte* buf)
	{ functions->GetByteArrayRegion(this, array, start, len, buf); }
	void GetCharArrayRegion(jcharArray array, jsize start, jsize len,
			jchar* buf)
	{ functions->GetCharArrayRegion(this, array, start, len, buf); }
	void GetShortArrayRegion(jshortArray array, jsize start, jsize len,
			jshort* buf)
	{ functions->GetShortArrayRegion(this, array, start, len, buf); }
	void GetIntArrayRegion(jintArray array, jsize start, jsize len,
			jint* buf)
	{ functions->GetIntArrayRegion(this, array, start, len, buf); }
	void GetLongArrayRegion(jlongArray array, jsize start, jsize len,
			jlong* buf)
	{ functions->GetLongArrayRegion(this, array, start, len, buf); }
	void GetFloatArrayRegion(jfloatArray array, jsize start, jsize len,
			jfloat* buf)
	{ functions->GetFloatArrayRegion(this, array, start, len, buf); }
	void GetDoubleArrayRegion(jdoubleArray array, jsize start, jsize len,
			jdouble* buf)
	{ functions->GetDoubleArrayRegion(this, array, start, len, buf); }

	void SetBooleanArrayRegion(jbooleanArray array, jsize start, jsize len,
			const jboolean* buf)
	{ functions->SetBooleanArrayRegion(this, array, start, len, buf); }
	void SetByteArrayRegion(jbyteArray array, jsize start, jsize len,
			const jbyte* buf)
	{ functions->SetByteArrayRegion(this, array, start, len, buf); }
	void SetCharArrayRegion(jcharArray array, jsize start, jsize len,
			const jchar* buf)
	{ functions->SetCharArrayRegion(this, array, start, len, buf); }
	void SetShortArrayRegion(jshortArray array, jsize start, jsize len,
			const jshort* buf)
	{ functions->SetShortArrayRegion(this, array, start, len, buf); }
	void SetIntArrayRegion(jintArray array, jsize start, jsize len,
			const jint* buf)
	{ functions->SetIntArrayRegion(this, array, start, len, buf); }
	void SetLongArrayRegion(jlongArray array, jsize start, jsize len,
			const jlong* buf)
	{ functions->SetLongArrayRegion(this, array, start, len, buf); }
	void SetFloatArrayRegion(jfloatArray array, jsize start, jsize len,
			const jfloat* buf)
	{ functions->SetFloatArrayRegion(this, array, start, len, buf); }
	void SetDoubleArrayRegion(jdoubleArray array, jsize start, jsize len,
			const jdouble* buf)
	{ functions->SetDoubleArrayRegion(this, array, start, len, buf); }

	jint RegisterNatives(jclass clazz, const JNINativeMethod* methods,
			jint nMethods)
	{ return functions->RegisterNatives(this, clazz, methods, nMethods); }

	jint UnregisterNatives(jclass clazz)
	{ return functions->UnregisterNatives(this, clazz); }

	jint MonitorEnter(jobject obj)
	{ return functions->MonitorEnter(this, obj); }

	jint MonitorExit(jobject obj)
	{ return functions->MonitorExit(this, obj); }

	jint GetJavaVM(JavaVM** vm)
	{ return functions->GetJavaVM(this, vm); }

	void GetStringRegion(jstring str, jsize start, jsize len, jchar* buf)
	{ functions->GetStringRegion(this, str, start, len, buf); }

	void GetStringUTFRegion(jstring str, jsize start, jsize len, char* buf)
	{ return functions->GetStringUTFRegion(this, str, start, len, buf); }

	void* GetPrimitiveArrayCritical(jarray array, jboolean* isCopy)
	{ return functions->GetPrimitiveArrayCritical(this, array, isCopy); }

	void ReleasePrimitiveArrayCritical(jarray array, void* carray, jint mode)
	{ functions->ReleasePrimitiveArrayCritical(this, array, carray, mode); }

	const jchar* GetStringCritical(jstring string, jboolean* isCopy)
	{ return functions->GetStringCritical(this, string, isCopy); }

	void ReleaseStringCritical(jstring string, const jchar* carray)
	{ functions->ReleaseStringCritical(this, string, carray); }

	jweak NewWeakGlobalRef(jobject obj)
	{ return functions->NewWeakGlobalRef(this, obj); }

	void DeleteWeakGlobalRef(jweak obj)
	{ functions->DeleteWeakGlobalRef(this, obj); }

	jboolean ExceptionCheck()
	{ return functions->ExceptionCheck(this); }

	jobject NewDirectByteBuffer(void* address, jlong capacity)
	{ return functions->NewDirectByteBuffer(this, address, capacity); }

	void* GetDirectBufferAddress(jobject buf)
	{ return functions->GetDirectBufferAddress(this, buf); }

	jlong GetDirectBufferCapacity(jobject buf)
	{ return functions->GetDirectBufferCapacity(this, buf); }

	/* added in JNI 1.6 */
	jobjectRefType GetObjectRefType(jobject obj)
	{ return functions->GetObjectRefType(this, obj); }
#endif /*__cplusplus*/
};


/*
* JNI invocation interface.
*/
struct JNIInvokeInterface {
	void*       reserved0;
	void*       reserved1;
	void*       reserved2;

	jint        (*DestroyJavaVM)(JavaVM*);
	jint        (*AttachCurrentThread)(JavaVM*, JNIEnv**, void*);
	jint        (*DetachCurrentThread)(JavaVM*);
	jint        (*GetEnv)(JavaVM*, void**, jint);
	jint        (*AttachCurrentThreadAsDaemon)(JavaVM*, JNIEnv**, void*);
};

/*
* C++ version.
*/
struct _JavaVM {
	const struct JNIInvokeInterface* functions;

#if defined(__cplusplus)
	jint DestroyJavaVM()
	{ return functions->DestroyJavaVM(this); }
	jint AttachCurrentThread(JNIEnv** p_env, void* thr_args)
	{ return functions->AttachCurrentThread(this, p_env, thr_args); }
	jint DetachCurrentThread()
	{ return functions->DetachCurrentThread(this); }
	jint GetEnv(void** env, jint version)
	{ return functions->GetEnv(this, env, version); }
	jint AttachCurrentThreadAsDaemon(JNIEnv** p_env, void* thr_args)
	{ return functions->AttachCurrentThreadAsDaemon(this, p_env, thr_args); }
#endif /*__cplusplus*/
};

struct JavaVMAttachArgs {
	jint        version;    /* must be >= JNI_VERSION_1_2 */
	const char* name;       /* NULL or name of thread as modified UTF-8 str */
	jobject     group;      /* global ref of a ThreadGroup object, or NULL */
};
typedef struct JavaVMAttachArgs JavaVMAttachArgs;

/*
* JNI 1.2+ initialization.  (As of 1.6, the pre-1.2 structures are no
* longer supported.)
*/
typedef struct JavaVMOption {
	const char* optionString;
	void*       extraInfo;
} JavaVMOption;

typedef struct JavaVMInitArgs {
	jint        version;    /* use JNI_VERSION_1_2 or later */

	jint        nOptions;
	JavaVMOption* options;
	jboolean    ignoreUnrecognized;
} JavaVMInitArgs;

#ifdef __cplusplus
extern "C" {
#endif
	/*
	 * VM initialization functions.
	 *
	 * Note these are the only symbols exported for JNI by the VM.
	 */
#if 0  /* In practice, these are not exported by the NDK so don't declare them */
	jint JNI_GetDefaultJavaVMInitArgs(void*);
	jint JNI_CreateJavaVM(JavaVM**, JNIEnv**, void*);
	jint JNI_GetCreatedJavaVMs(JavaVM**, jsize, jsize*);
#endif

#define JNIIMPORT
#define JNIEXPORT  __attribute__ ((visibility ("default")))
#define JNICALL

	/*
	 * Prototypes for functions exported by loadable shared libs.  These are
	 * called by JNI, not provided by JNI.
	 */
	JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void* reserved);
	JNIEXPORT void JNICALL JNI_OnUnload(JavaVM* vm, void* reserved);

#ifdef __cplusplus
}
#endif


/*
* Manifest constants.
*/
#define JNI_FALSE   0
#define JNI_TRUE    1

#define JNI_VERSION_1_1 0x00010001
#define JNI_VERSION_1_2 0x00010002
#define JNI_VERSION_1_4 0x00010004
#define JNI_VERSION_1_6 0x00010006

#define JNI_OK          (0)         /* no error */
#define JNI_ERR         (-1)        /* generic error */
#define JNI_EDETACHED   (-2)        /* thread detached from the VM */
#define JNI_EVERSION    (-3)        /* JNI version error */

#define JNI_COMMIT      1           /* copy content, do not free buffer */
#define JNI_ABORT       2           /* free buffer w/o copying back */

#endif  /* JNI_H_ */