/// <summary>
/// Initializes a new instance of the <see cref="JavaVM" /> class.
/// </summary>
/// <param name="jvm">Pointer to the native JavaVM structure, returned from the native function JNI_CreateJavaVM.</param>
public JavaVM(IntPtr jvm)
{
this.jvm = jvm;
JNIInvokeInterface functions = *(*(JNIInvokeInterfacePtr*)jvm.ToPointer()).Functions;
this.destroyJavaVM = (DestroyJavaVM)Marshal.GetDelegateForFunctionPointer(functions.DestroyJavaVM, typeof(DestroyJavaVM));
}
public JniInvokeMethods(IntPtr jvm)
{
JniInvokeInterface func = **(JniInvokeInterface **)jvm;
attachCurrentThread = (AttachCurrentThread)Marshal.GetDelegateForFunctionPointer(func.AttachCurrentThread, typeof(AttachCurrentThread));
detachCurrentThread = (DetachCurrentThread)Marshal.GetDelegateForFunctionPointer(func.DetachCurrentThread, typeof(DetachCurrentThread));
destroyJavaVM = (DestroyJavaVM)Marshal.GetDelegateForFunctionPointer(func.DestroyJavaVM, typeof(DestroyJavaVM));
}
public static void Attach(int pid, string path, string arguments = "")
{
IntPtr vm = IntPtr.Zero, env = IntPtr.Zero;
JavaVMInitArgs args = new JavaVMInitArgs();
args.version = 0x00010008;
args.nOptions = 0;
int result = JNI_CreateJavaVM(ref vm, ref env, ref args);
Console.WriteLine("result " + result);
IntPtr real = Marshal.ReadIntPtr(env);
IntPtr function = Marshal.ReadIntPtr(real, 668);
IntPtr functionL = Marshal.ReadIntPtr(real, 656);
IntPtr realVmStruct = Marshal.ReadIntPtr(vm);
StringDelegate newStringUTF = Marshal.GetDelegateForFunctionPointer <StringDelegate>(function);
GetStringLength stringLen = Marshal.GetDelegateForFunctionPointer <GetStringLength>(functionL);
ExceptionCheck checkException = Marshal.GetDelegateForFunctionPointer <ExceptionCheck>(Marshal.ReadIntPtr(real, 912));
ExceptionDescribe printException = Marshal.GetDelegateForFunctionPointer <ExceptionDescribe>(Marshal.ReadIntPtr(real, 64));
NewObjectArray newObjectArray = Marshal.GetDelegateForFunctionPointer <NewObjectArray>(Marshal.ReadIntPtr(real, 688));
FindClass findClass = Marshal.GetDelegateForFunctionPointer <FindClass>(Marshal.ReadIntPtr(real, 24));
SetArray setArray = Marshal.GetDelegateForFunctionPointer <SetArray>(Marshal.ReadIntPtr(real, 696));
DestroyJavaVM destroyVM = Marshal.GetDelegateForFunctionPointer <DestroyJavaVM>(Marshal.ReadIntPtr(realVmStruct, 12));
//attach api start
Java_sun_tools_attach_WindowsVirtualMachine_init(env, IntPtr.Zero);
IntPtr stub = Java_sun_tools_attach_WindowsVirtualMachine_generateStub(env, IntPtr.Zero);
long process = Java_sun_tools_attach_WindowsVirtualMachine_openProcess(env, IntPtr.Zero, pid);
Console.WriteLine("exception " + checkException(env));
IntPtr cmd = newStringUTF(env, "load");
IntPtr pipeName = newStringUTF(env, "\\\\.\\pipe\\javatool22");
IntPtr pathJStr = newStringUTF(env, path);
IntPtr unknownBoolean = newStringUTF(env, "true");
IntPtr argumentsJ = newStringUTF(env, arguments);
Console.WriteLine("exception " + checkException(env));
IntPtr clazz = findClass(env, "java/lang/String");
IntPtr array = newObjectArray(env, 3, clazz, IntPtr.Zero);
setArray(env, array, 0, pathJStr);
setArray(env, array, 1, unknownBoolean);
setArray(env, array, 2, argumentsJ);
Java_sun_tools_attach_WindowsVirtualMachine_enqueue(env, IntPtr.Zero,
process, stub, cmd, pipeName, array);
Console.WriteLine("exception " + checkException(env));
printException(env);
/*
*
* var pipe = new NamedPipeServerStream("javatool22");
* pipe.WaitForConnection();
* BinaryReader reader = new BinaryReader(pipe);
* char callback = reader.ReadChar();
*
*
* Console.WriteLine("pipe result " + callback);
*/
Java_sun_tools_attach_WindowsVirtualMachine_closeProcess(env, IntPtr.Zero, process);
int rr = destroyVM(vm);
Console.WriteLine("destroyed vm: " + result);
}
