/*
* 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
*
* http://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:
* http://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_
#include <stdarg.h>
/*
* 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 {};
/* 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;
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 */
#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
/*
* Prototypes for functions exported by loadable shared libs. These are
* called by JNI, not provided by JNI.
*/
JNIEXPORT jint JNI_OnLoad(JavaVM* vm, void* reserved);
JNIEXPORT void JNI_OnUnload(JavaVM* vm, void* reserved);
