Simple jni bindings for odin

jni.odin

package jni

import "base:intrinsics"
import "base:runtime"
import cffi "core:c"

when ODIN_OS == .Linux {
    foreign import lib {
        "system:jni",
    }
}
when ODIN_OS == .Windows {
    foreign import lib {
        "system:jni.lib",
    }
}
when ODIN_OS == .Darwin {
    foreign import lib {
        "system:jni",
    }
}


JNI_FALSE        :: 0
JNI_TRUE         :: 1
JNI_OK           :: 0
JNI_ERR          :: (-1)
JNI_EDETACHED    :: (-2)
JNI_EVERSION     :: (-3)
JNI_ENOMEM       :: (-4)
JNI_EEXIST       :: (-5)
JNI_EINVAL       :: (-6)
JNI_COMMIT       :: 1
JNI_ABORT        :: 2
JNI_VERSION_1_1  :: 0x00010001
JNI_VERSION_1_2  :: 0x00010002
JNI_VERSION_1_4  :: 0x00010004
JNI_VERSION_1_6  :: 0x00010006
JNI_VERSION_1_8  :: 0x00010008
JNI_VERSION_9    :: 0x00090000
JNI_VERSION_10   :: 0x000a0000


foreign lib {
}
@(default_calling_convention="c")
foreign lib {
    @(link_name="JNI_GetDefaultJavaVMInitArgs")
    GetDefaultJavaVMInitArgs :: proc(args: rawptr) -> cffi.int ---

    @(link_name="JNI_CreateJavaVM")
    CreateJavaVM :: proc(pvm: ^^^InvokeInterface, penv: ^rawptr, args: rawptr) -> cffi.int ---

    @(link_name="JNI_GetCreatedJavaVMs")
    GetCreatedJavaVMs :: proc(_0: ^^^InvokeInterface, _1: jsize, _2: ^cffi.int) -> cffi.int ---

    @(link_name="JNI_OnLoad")
    OnLoad :: proc(vm: ^^InvokeInterface, reserved: rawptr) -> cffi.int ---

    @(link_name="JNI_OnUnload")
    OnUnload :: proc(vm: ^^InvokeInterface, reserved: rawptr) ---

}

/// jint
jint :: distinct cffi.int

/// jlong
jlong :: distinct cffi.long

/// jbyte
jbyte :: distinct cffi.schar

/// jboolean
jboolean :: distinct cffi.uchar

/// jchar
jchar :: distinct cffi.ushort

/// jshort
jshort :: distinct cffi.short

/// jfloat
jfloat :: distinct cffi.float

/// jdouble
jdouble :: distinct cffi.double

/// jsize
jsize :: distinct cffi.int

/// jobject
jobject :: distinct ^_jobject

/// jclass
jclass :: distinct ^_jobject

/// jthrowable
jthrowable :: distinct ^_jobject

/// jstring
jstring :: distinct ^_jobject

/// jarray
jarray :: distinct ^_jobject

/// jbooleanArray
jbooleanArray :: distinct ^_jobject

/// jbyteArray
jbyteArray :: distinct ^_jobject

/// jcharArray
jcharArray :: distinct ^_jobject

/// jshortArray
jshortArray :: distinct ^_jobject

/// jintArray
jintArray :: distinct ^_jobject

/// jlongArray
jlongArray :: distinct ^_jobject

/// jfloatArray
jfloatArray :: distinct ^_jobject

/// jdoubleArray
jdoubleArray :: distinct ^_jobject

/// jobjectArray
jobjectArray :: distinct ^_jobject

/// jweak
jweak :: distinct ^_jobject

/// jfieldID
jfieldID :: distinct ^_jfieldID

/// jmethodID
jmethodID :: distinct ^_jmethodID

/// JNIEnv
Env :: distinct ^NativeInterface_

/// JavaVM
JavaVM :: distinct ^InvokeInterface

/// jobjectRefType
jobjectRefType :: enum cffi.uint {
    JNIInvalidRefType = 0,
    JNILocalRefType = 1,
    JNIGlobalRefType = 2,
    JNIWeakGlobalRefType = 3,
}

/// _jobject
_jobject :: struct {}

/// _jfieldID
_jfieldID :: struct {}

/// _jmethodID
_jmethodID :: struct {}

/// JNINativeMethod
NativeMethod :: struct #align (8) {
    name : cstring,
    signature : cstring,
    fnPtr : rawptr,
}

/// JNINativeInterface_
NativeInterface_ :: struct #align (8) {
    reserved0 : rawptr,
    reserved1 : rawptr,
    reserved2 : rawptr,
    reserved3 : rawptr,
    GetVersion : proc "c" (env: ^^NativeInterface_) -> cffi.int,
    DefineClass : proc "c" (env: ^^NativeInterface_, name: cstring, loader: ^_jobject, buf: ^cffi.schar, len: cffi.int) -> ^_jobject,
    FindClass : proc "c" (env: ^^NativeInterface_, name: cstring) -> ^_jobject,
    FromReflectedMethod : proc "c" (env: ^^NativeInterface_, method: ^_jobject) -> ^_jmethodID,
    FromReflectedField : proc "c" (env: ^^NativeInterface_, field: ^_jobject) -> ^_jfieldID,
    ToReflectedMethod : proc "c" (env: ^^NativeInterface_, cls: ^_jobject, methodID: ^_jmethodID, isStatic: cffi.uchar) -> ^_jobject,
    GetSuperclass : proc "c" (env: ^^NativeInterface_, sub: ^_jobject) -> ^_jobject,
    IsAssignableFrom : proc "c" (env: ^^NativeInterface_, sub: ^_jobject, sup: ^_jobject) -> cffi.uchar,
    ToReflectedField : proc "c" (env: ^^NativeInterface_, cls: ^_jobject, fieldID: ^_jfieldID, isStatic: cffi.uchar) -> ^_jobject,
    Throw : proc "c" (env: ^^NativeInterface_, obj: ^_jobject) -> cffi.int,
    ThrowNew : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, msg: cstring) -> cffi.int,
    ExceptionOccurred : proc "c" (env: ^^NativeInterface_) -> ^_jobject,
    ExceptionDescribe : proc "c" (env: ^^NativeInterface_),
    ExceptionClear : proc "c" (env: ^^NativeInterface_),
    FatalError : proc "c" (env: ^^NativeInterface_, msg: cstring),
    PushLocalFrame : proc "c" (env: ^^NativeInterface_, capacity: cffi.int) -> cffi.int,
    PopLocalFrame : proc "c" (env: ^^NativeInterface_, result: ^_jobject) -> ^_jobject,
    NewGlobalRef : proc "c" (env: ^^NativeInterface_, lobj: ^_jobject) -> ^_jobject,
    DeleteGlobalRef : proc "c" (env: ^^NativeInterface_, gref: ^_jobject),
    DeleteLocalRef : proc "c" (env: ^^NativeInterface_, obj: ^_jobject),
    IsSameObject : proc "c" (env: ^^NativeInterface_, obj1: ^_jobject, obj2: ^_jobject) -> cffi.uchar,
    NewLocalRef : proc "c" (env: ^^NativeInterface_, ref: ^_jobject) -> ^_jobject,
    EnsureLocalCapacity : proc "c" (env: ^^NativeInterface_, capacity: cffi.int) -> cffi.int,
    AllocObject : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject) -> ^_jobject,
    NewObject : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID) -> ^_jobject,
    NewObjectV : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> ^_jobject,
    NewObjectA : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> ^_jobject,
    GetObjectClass : proc "c" (env: ^^NativeInterface_, obj: ^_jobject) -> ^_jobject,
    IsInstanceOf : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject) -> cffi.uchar,
    GetMethodID : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, name: cstring, sig: cstring) -> ^_jmethodID,
    CallObjectMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID) -> ^_jobject,
    CallObjectMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: cstring) -> ^_jobject,
    CallObjectMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> ^_jobject,
    CallBooleanMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID) -> cffi.uchar,
    CallBooleanMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.uchar,
    CallBooleanMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.uchar,
    CallByteMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID) -> cffi.schar,
    CallByteMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.schar,
    CallByteMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.schar,
    CallCharMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID) -> cffi.ushort,
    CallCharMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.ushort,
    CallCharMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.ushort,
    CallShortMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID) -> cffi.short,
    CallShortMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.short,
    CallShortMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.short,
    CallIntMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID) -> cffi.int,
    CallIntMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.int,
    CallIntMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.int,
    CallLongMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID) -> cffi.long,
    CallLongMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.long,
    CallLongMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.long,
    CallFloatMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID) -> cffi.float,
    CallFloatMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.float,
    CallFloatMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.float,
    CallDoubleMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID) -> cffi.double,
    CallDoubleMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.double,
    CallDoubleMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.double,
    CallVoidMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID),
    CallVoidMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: cstring),
    CallVoidMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, methodID: ^_jmethodID, args: ^jvalue),
    CallNonvirtualObjectMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID) -> ^_jobject,
    CallNonvirtualObjectMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> ^_jobject,
    CallNonvirtualObjectMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> ^_jobject,
    CallNonvirtualBooleanMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID) -> cffi.uchar,
    CallNonvirtualBooleanMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.uchar,
    CallNonvirtualBooleanMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.uchar,
    CallNonvirtualByteMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID) -> cffi.schar,
    CallNonvirtualByteMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.schar,
    CallNonvirtualByteMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.schar,
    CallNonvirtualCharMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID) -> cffi.ushort,
    CallNonvirtualCharMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.ushort,
    CallNonvirtualCharMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.ushort,
    CallNonvirtualShortMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID) -> cffi.short,
    CallNonvirtualShortMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.short,
    CallNonvirtualShortMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.short,
    CallNonvirtualIntMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID) -> cffi.int,
    CallNonvirtualIntMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.int,
    CallNonvirtualIntMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.int,
    CallNonvirtualLongMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID) -> cffi.long,
    CallNonvirtualLongMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.long,
    CallNonvirtualLongMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.long,
    CallNonvirtualFloatMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID) -> cffi.float,
    CallNonvirtualFloatMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.float,
    CallNonvirtualFloatMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.float,
    CallNonvirtualDoubleMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID) -> cffi.double,
    CallNonvirtualDoubleMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.double,
    CallNonvirtualDoubleMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.double,
    CallNonvirtualVoidMethod : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID),
    CallNonvirtualVoidMethodV : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring),
    CallNonvirtualVoidMethodA : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue),
    GetFieldID : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, name: cstring, sig: cstring) -> ^_jfieldID,
    GetObjectField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID) -> ^_jobject,
    GetBooleanField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID) -> cffi.uchar,
    GetByteField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID) -> cffi.schar,
    GetCharField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID) -> cffi.ushort,
    GetShortField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID) -> cffi.short,
    GetIntField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID) -> cffi.int,
    GetLongField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID) -> cffi.long,
    GetFloatField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID) -> cffi.float,
    GetDoubleField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID) -> cffi.double,
    SetObjectField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID, val: ^_jobject),
    SetBooleanField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID, val: cffi.uchar),
    SetByteField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID, val: cffi.schar),
    SetCharField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID, val: cffi.ushort),
    SetShortField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID, val: cffi.short),
    SetIntField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID, val: cffi.int),
    SetLongField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID, val: cffi.long),
    SetFloatField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID, val: cffi.float),
    SetDoubleField : proc "c" (env: ^^NativeInterface_, obj: ^_jobject, fieldID: ^_jfieldID, val: cffi.double),
    GetStaticMethodID : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, name: cstring, sig: cstring) -> ^_jmethodID,
    CallStaticObjectMethod : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID) -> ^_jobject,
    CallStaticObjectMethodV : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> ^_jobject,
    CallStaticObjectMethodA : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> ^_jobject,
    CallStaticBooleanMethod : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID) -> cffi.uchar,
    CallStaticBooleanMethodV : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.uchar,
    CallStaticBooleanMethodA : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.uchar,
    CallStaticByteMethod : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID) -> cffi.schar,
    CallStaticByteMethodV : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.schar,
    CallStaticByteMethodA : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.schar,
    CallStaticCharMethod : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID) -> cffi.ushort,
    CallStaticCharMethodV : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.ushort,
    CallStaticCharMethodA : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.ushort,
    CallStaticShortMethod : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID) -> cffi.short,
    CallStaticShortMethodV : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.short,
    CallStaticShortMethodA : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.short,
    CallStaticIntMethod : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID) -> cffi.int,
    CallStaticIntMethodV : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.int,
    CallStaticIntMethodA : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.int,
    CallStaticLongMethod : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID) -> cffi.long,
    CallStaticLongMethodV : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.long,
    CallStaticLongMethodA : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.long,
    CallStaticFloatMethod : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID) -> cffi.float,
    CallStaticFloatMethodV : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.float,
    CallStaticFloatMethodA : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.float,
    CallStaticDoubleMethod : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID) -> cffi.double,
    CallStaticDoubleMethodV : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: cstring) -> cffi.double,
    CallStaticDoubleMethodA : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methodID: ^_jmethodID, args: ^jvalue) -> cffi.double,
    CallStaticVoidMethod : proc "c" (env: ^^NativeInterface_, cls: ^_jobject, methodID: ^_jmethodID),
    CallStaticVoidMethodV : proc "c" (env: ^^NativeInterface_, cls: ^_jobject, methodID: ^_jmethodID, args: cstring),
    CallStaticVoidMethodA : proc "c" (env: ^^NativeInterface_, cls: ^_jobject, methodID: ^_jmethodID, args: ^jvalue),
    GetStaticFieldID : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, name: cstring, sig: cstring) -> ^_jfieldID,
    GetStaticObjectField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID) -> ^_jobject,
    GetStaticBooleanField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID) -> cffi.uchar,
    GetStaticByteField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID) -> cffi.schar,
    GetStaticCharField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID) -> cffi.ushort,
    GetStaticShortField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID) -> cffi.short,
    GetStaticIntField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID) -> cffi.int,
    GetStaticLongField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID) -> cffi.long,
    GetStaticFloatField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID) -> cffi.float,
    GetStaticDoubleField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID) -> cffi.double,
    SetStaticObjectField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID, value: ^_jobject),
    SetStaticBooleanField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID, value: cffi.uchar),
    SetStaticByteField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID, value: cffi.schar),
    SetStaticCharField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID, value: cffi.ushort),
    SetStaticShortField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID, value: cffi.short),
    SetStaticIntField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID, value: cffi.int),
    SetStaticLongField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID, value: cffi.long),
    SetStaticFloatField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID, value: cffi.float),
    SetStaticDoubleField : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, fieldID: ^_jfieldID, value: cffi.double),
    NewString : proc "c" (env: ^^NativeInterface_, unicode: ^cffi.ushort, len: cffi.int) -> ^_jobject,
    GetStringLength : proc "c" (env: ^^NativeInterface_, str: ^_jobject) -> cffi.int,
    GetStringChars : proc "c" (env: ^^NativeInterface_, str: ^_jobject, isCopy: ^cffi.uchar) -> ^cffi.ushort,
    ReleaseStringChars : proc "c" (env: ^^NativeInterface_, str: ^_jobject, chars: ^cffi.ushort),
    NewStringUTF : proc "c" (env: ^^NativeInterface_, utf: cstring) -> ^_jobject,
    GetStringUTFLength : proc "c" (env: ^^NativeInterface_, str: ^_jobject) -> cffi.int,
    GetStringUTFChars : proc "c" (env: ^^NativeInterface_, str: ^_jobject, isCopy: ^cffi.uchar) -> cstring,
    ReleaseStringUTFChars : proc "c" (env: ^^NativeInterface_, str: ^_jobject, chars: cstring),
    GetArrayLength : proc "c" (env: ^^NativeInterface_, array: ^_jobject) -> cffi.int,
    NewObjectArray : proc "c" (env: ^^NativeInterface_, len: cffi.int, clazz: ^_jobject, init: ^_jobject) -> ^_jobject,
    GetObjectArrayElement : proc "c" (env: ^^NativeInterface_, array: ^_jobject, index: cffi.int) -> ^_jobject,
    SetObjectArrayElement : proc "c" (env: ^^NativeInterface_, array: ^_jobject, index: cffi.int, val: ^_jobject),
    NewBooleanArray : proc "c" (env: ^^NativeInterface_, len: cffi.int) -> ^_jobject,
    NewByteArray : proc "c" (env: ^^NativeInterface_, len: cffi.int) -> ^_jobject,
    NewCharArray : proc "c" (env: ^^NativeInterface_, len: cffi.int) -> ^_jobject,
    NewShortArray : proc "c" (env: ^^NativeInterface_, len: cffi.int) -> ^_jobject,
    NewIntArray : proc "c" (env: ^^NativeInterface_, len: cffi.int) -> ^_jobject,
    NewLongArray : proc "c" (env: ^^NativeInterface_, len: cffi.int) -> ^_jobject,
    NewFloatArray : proc "c" (env: ^^NativeInterface_, len: cffi.int) -> ^_jobject,
    NewDoubleArray : proc "c" (env: ^^NativeInterface_, len: cffi.int) -> ^_jobject,
    GetBooleanArrayElements : proc "c" (env: ^^NativeInterface_, array: ^_jobject, isCopy: ^cffi.uchar) -> ^cffi.uchar,
    GetByteArrayElements : proc "c" (env: ^^NativeInterface_, array: ^_jobject, isCopy: ^cffi.uchar) -> ^cffi.schar,
    GetCharArrayElements : proc "c" (env: ^^NativeInterface_, array: ^_jobject, isCopy: ^cffi.uchar) -> ^cffi.ushort,
    GetShortArrayElements : proc "c" (env: ^^NativeInterface_, array: ^_jobject, isCopy: ^cffi.uchar) -> ^cffi.short,
    GetIntArrayElements : proc "c" (env: ^^NativeInterface_, array: ^_jobject, isCopy: ^cffi.uchar) -> ^cffi.int,
    GetLongArrayElements : proc "c" (env: ^^NativeInterface_, array: ^_jobject, isCopy: ^cffi.uchar) -> ^cffi.long,
    GetFloatArrayElements : proc "c" (env: ^^NativeInterface_, array: ^_jobject, isCopy: ^cffi.uchar) -> ^cffi.float,
    GetDoubleArrayElements : proc "c" (env: ^^NativeInterface_, array: ^_jobject, isCopy: ^cffi.uchar) -> ^cffi.double,
    ReleaseBooleanArrayElements : proc "c" (env: ^^NativeInterface_, array: ^_jobject, elems: ^cffi.uchar, mode: cffi.int),
    ReleaseByteArrayElements : proc "c" (env: ^^NativeInterface_, array: ^_jobject, elems: ^cffi.schar, mode: cffi.int),
    ReleaseCharArrayElements : proc "c" (env: ^^NativeInterface_, array: ^_jobject, elems: ^cffi.ushort, mode: cffi.int),
    ReleaseShortArrayElements : proc "c" (env: ^^NativeInterface_, array: ^_jobject, elems: ^cffi.short, mode: cffi.int),
    ReleaseIntArrayElements : proc "c" (env: ^^NativeInterface_, array: ^_jobject, elems: ^cffi.int, mode: cffi.int),
    ReleaseLongArrayElements : proc "c" (env: ^^NativeInterface_, array: ^_jobject, elems: ^cffi.long, mode: cffi.int),
    ReleaseFloatArrayElements : proc "c" (env: ^^NativeInterface_, array: ^_jobject, elems: ^cffi.float, mode: cffi.int),
    ReleaseDoubleArrayElements : proc "c" (env: ^^NativeInterface_, array: ^_jobject, elems: ^cffi.double, mode: cffi.int),
    GetBooleanArrayRegion : proc "c" (env: ^^NativeInterface_, array: ^_jobject, start: cffi.int, l: cffi.int, buf: ^cffi.uchar),
    GetByteArrayRegion : proc "c" (env: ^^NativeInterface_, array: ^_jobject, start: cffi.int, len: cffi.int, buf: ^cffi.schar),
    GetCharArrayRegion : proc "c" (env: ^^NativeInterface_, array: ^_jobject, start: cffi.int, len: cffi.int, buf: ^cffi.ushort),
    GetShortArrayRegion : proc "c" (env: ^^NativeInterface_, array: ^_jobject, start: cffi.int, len: cffi.int, buf: ^cffi.short),
    GetIntArrayRegion : proc "c" (env: ^^NativeInterface_, array: ^_jobject, start: cffi.int, len: cffi.int, buf: ^cffi.int),
    GetLongArrayRegion : proc "c" (env: ^^NativeInterface_, array: ^_jobject, start: cffi.int, len: cffi.int, buf: ^cffi.long),
    GetFloatArrayRegion : proc "c" (env: ^^NativeInterface_, array: ^_jobject, start: cffi.int, len: cffi.int, buf: ^cffi.float),
    GetDoubleArrayRegion : proc "c" (env: ^^NativeInterface_, array: ^_jobject, start: cffi.int, len: cffi.int, buf: ^cffi.double),
    SetBooleanArrayRegion : proc "c" (env: ^^NativeInterface_, array: ^_jobject, start: cffi.int, l: cffi.int, buf: ^cffi.uchar),
    SetByteArrayRegion : proc "c" (env: ^^NativeInterface_, array: ^_jobject, start: cffi.int, len: cffi.int, buf: ^cffi.schar),
    SetCharArrayRegion : proc "c" (env: ^^NativeInterface_, array: ^_jobject, start: cffi.int, len: cffi.int, buf: ^cffi.ushort),
    SetShortArrayRegion : proc "c" (env: ^^NativeInterface_, array: ^_jobject, start: cffi.int, len: cffi.int, buf: ^cffi.short),
    SetIntArrayRegion : proc "c" (env: ^^NativeInterface_, array: ^_jobject, start: cffi.int, len: cffi.int, buf: ^cffi.int),
    SetLongArrayRegion : proc "c" (env: ^^NativeInterface_, array: ^_jobject, start: cffi.int, len: cffi.int, buf: ^cffi.long),
    SetFloatArrayRegion : proc "c" (env: ^^NativeInterface_, array: ^_jobject, start: cffi.int, len: cffi.int, buf: ^cffi.float),
    SetDoubleArrayRegion : proc "c" (env: ^^NativeInterface_, array: ^_jobject, start: cffi.int, len: cffi.int, buf: ^cffi.double),
    RegisterNatives : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject, methods: ^NativeMethod, nMethods: cffi.int) -> cffi.int,
    UnregisterNatives : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject) -> cffi.int,
    MonitorEnter : proc "c" (env: ^^NativeInterface_, obj: ^_jobject) -> cffi.int,
    MonitorExit : proc "c" (env: ^^NativeInterface_, obj: ^_jobject) -> cffi.int,
    GetJavaVM : proc "c" (env: ^^NativeInterface_, vm: ^^^InvokeInterface) -> cffi.int,
    GetStringRegion : proc "c" (env: ^^NativeInterface_, str: ^_jobject, start: cffi.int, len: cffi.int, buf: ^cffi.ushort),
    GetStringUTFRegion : proc "c" (env: ^^NativeInterface_, str: ^_jobject, start: cffi.int, len: cffi.int, buf: cstring),
    GetPrimitiveArrayCritical : proc "c" (env: ^^NativeInterface_, array: ^_jobject, isCopy: ^cffi.uchar) -> rawptr,
    ReleasePrimitiveArrayCritical : proc "c" (env: ^^NativeInterface_, array: ^_jobject, carray: rawptr, mode: cffi.int),
    GetStringCritical : proc "c" (env: ^^NativeInterface_, string: ^_jobject, isCopy: ^cffi.uchar) -> ^cffi.ushort,
    ReleaseStringCritical : proc "c" (env: ^^NativeInterface_, string: ^_jobject, cstring: ^cffi.ushort),
    NewWeakGlobalRef : proc "c" (env: ^^NativeInterface_, obj: ^_jobject) -> ^_jobject,
    DeleteWeakGlobalRef : proc "c" (env: ^^NativeInterface_, ref: ^_jobject),
    ExceptionCheck : proc "c" (env: ^^NativeInterface_) -> cffi.uchar,
    NewDirectByteBuffer : proc "c" (env: ^^NativeInterface_, address: rawptr, capacity: cffi.long) -> ^_jobject,
    GetDirectBufferAddress : proc "c" (env: ^^NativeInterface_, buf: ^_jobject) -> rawptr,
    GetDirectBufferCapacity : proc "c" (env: ^^NativeInterface_, buf: ^_jobject) -> cffi.long,
    GetObjectRefType : proc "c" (env: ^^NativeInterface_, obj: ^_jobject) -> jobjectRefType,
    GetModule : proc "c" (env: ^^NativeInterface_, clazz: ^_jobject) -> ^_jobject,
}

/// JNIEnv_
Env_ :: struct #align (8) {
    functions : ^NativeInterface_,
}

/// JNIInvokeInterface_
InvokeInterface :: struct #align (8) {
    reserved0 : rawptr,
    reserved1 : rawptr,
    reserved2 : rawptr,
    DestroyJavaVM : proc "c" (vm: ^^InvokeInterface) -> cffi.int,
    AttachCurrentThread : proc "c" (vm: ^^InvokeInterface, penv: ^rawptr, args: rawptr) -> cffi.int,
    DetachCurrentThread : proc "c" (vm: ^^InvokeInterface) -> cffi.int,
    GetEnv : proc "c" (vm: ^^InvokeInterface, penv: ^rawptr, version: cffi.int) -> cffi.int,
    AttachCurrentThreadAsDaemon : proc "c" (vm: ^^InvokeInterface, penv: ^rawptr, args: rawptr) -> cffi.int,
}

/// JavaVM_
JavaVM_ :: struct #align (8) {
    functions : ^InvokeInterface,
}

/// JavaVMOption
JavaVMOption :: struct #align (8) {
    optionString : cstring,
    extraInfo : rawptr,
}

/// JavaVMInitArgs
JavaVMInitArgs :: struct #align (8) {
    version : cffi.int,
    nOptions : cffi.int,
    options : ^JavaVMOption,
    ignoreUnrecognized : cffi.uchar,
}

/// JavaVMAttachArgs
JavaVMAttachArgs :: struct #align (8) {
    version : cffi.int,
    name : cstring,
    group : ^_jobject,
}

/// jvalue
jvalue :: struct  {
    z : cffi.uchar,
    b : cffi.schar,
    c : cffi.ushort,
    s : cffi.short,
    i : cffi.int,
    j : cffi.long,
    f : cffi.float,
    d : cffi.double,
    l : ^_jobject,
}