private static byte[] InvokeRpc(RpcHandle handle, Guid iid, byte[] input)
{
Log.Verbose("InvokeRpc on {0}, sending {1} bytes", handle.Handle, input.Length);
Ptr <MIDL_STUB_DESC> pStub;
if (!handle.GetPtr(out pStub))
{
pStub =
handle.CreatePtr(new MIDL_STUB_DESC(handle, handle.Pin(new RPC_CLIENT_INTERFACE(iid)),
RpcApi.TYPE_FORMAT,
false));
}
int szResponse = 0;
IntPtr response, result;
using (Ptr <byte[]> pInputBuffer = new Ptr <byte[]>(input))
{
if (RpcApi.Is64BitProcess)
{
try
{
result = NdrClientCall2x64(pStub.Handle, RpcApi.FUNC_FORMAT_PTR.Handle, handle.Handle,
input.Length,
pInputBuffer.Handle, out szResponse, out response);
}
catch (SEHException ex)
{
RpcException.Assert(ex.ErrorCode);
throw;
}
}
else
{
using (Ptr <Int32[]> pStack32 = new Ptr <Int32[]>(new Int32[10]))
{
pStack32.Data[0] = handle.Handle.ToInt32();
pStack32.Data[1] = input.Length;
pStack32.Data[2] = pInputBuffer.Handle.ToInt32();
pStack32.Data[3] = pStack32.Handle.ToInt32() + (sizeof(int) * 6);
pStack32.Data[4] = pStack32.Handle.ToInt32() + (sizeof(int) * 8);
pStack32.Data[5] = 0; //reserved
pStack32.Data[6] = 0; //output: int dwSizeResponse
pStack32.Data[8] = 0; //output: byte* lpResponse
try
{
result = NdrClientCall2x86(pStub.Handle, RpcApi.FUNC_FORMAT_PTR.Handle, pStack32.Handle);
}
catch (SEHException ex)
{
RpcException.Assert(ex.ErrorCode);
throw;
}
szResponse = pStack32.Data[6];
response = new IntPtr(pStack32.Data[8]);
}
}
GC.KeepAlive(pInputBuffer);
}
RpcException.Assert(result.ToInt32());
Log.Verbose("InvokeRpc.InvokeRpc response on {0}, recieved {1} bytes", handle.Handle, szResponse);
byte[] output = new byte[szResponse];
if (szResponse > 0 && response != IntPtr.Zero)
{
Marshal.Copy(response, output, 0, output.Length);
}
RpcApi.Free(response);
return(output);
}
private static byte[] InvokeRpc(RpcHandle handle, Guid iid, byte[] input)
{
Log.Verbose("InvokeRpc on {0}, sending {1} bytes", handle.Handle, input.Length);
Ptr <MIDL_STUB_DESC> pStub;
if (!handle.GetPtr(out pStub))
{
pStub =
handle.CreatePtr(new MIDL_STUB_DESC(handle, handle.Pin(new RPC_CLIENT_INTERFACE(iid)),
RpcApi.TYPE_FORMAT,
false));
}
int szResponse = 0;
var pszResponse = new Ptr <int>(szResponse);
IntPtr response = IntPtr.Zero;
var pResponse = new Ptr <IntPtr>(response);
IntPtr result;
using (Ptr <byte[]> pInputBuffer = new Ptr <byte[]>(input))
{
if (RpcApi.Is64BitProcess)
{
try
{
result = RpcApi.NdrClientCall2x64(
pStub.Handle, RpcApi.FUNC_FORMAT_PTR.Handle, handle.Handle,
input.Length, pInputBuffer.Handle, out szResponse, out response
);
}
catch (SEHException ex)
{
int internalError = ex.ErrorCode;
if ((uint)RpcError.RPC_E_FAIL == (uint)internalError)
{
if ((int)RpcError.RPC_S_OK != Marshal.GetExceptionCode())
{
internalError = Marshal.GetExceptionCode();
}
}
RpcException.Assert(internalError);
throw;
}
}
else
{
using (Ptr <Int32[]> pStack32 = new Ptr <Int32[]>(new Int32[6]))
{
pStack32.Data[0] = handle.Handle.ToInt32();
pStack32.Data[1] = input.Length;
pStack32.Data[2] = pInputBuffer.Handle.ToInt32();
pStack32.Data[3] = pszResponse.Handle.ToInt32();
pStack32.Data[4] = pResponse.Handle.ToInt32();
pStack32.Data[5] = 0; // reserved
try
{
result = RpcApi.NdrClientCall2x86(pStub.Handle, RpcApi.FUNC_FORMAT_PTR.Handle, pStack32.Handle);
}
catch (SEHException ex)
{
int internalError = ex.ErrorCode;
if ((uint)RpcError.RPC_E_FAIL == (uint)internalError)
{
if ((int)RpcError.RPC_S_OK != Marshal.GetExceptionCode())
{
internalError = Marshal.GetExceptionCode();
}
}
RpcException.Assert(internalError);
throw;
}
}
}
GC.KeepAlive(pInputBuffer);
}
RpcException.Assert(result.ToInt32());
szResponse = pszResponse.Data;
response = pResponse.Data;
byte[] output = new byte[szResponse];
if (szResponse > 0 && pResponse.Handle != IntPtr.Zero)
{
Marshal.Copy(response, output, 0, output.Length);
}
RpcApi.Free(response);
return(output);
}
private static void InvokeRpcAsync(RpcHandle handle, Guid iid, byte[] input, APICallback callback)
{
Log.Verbose("InvokeRpcAsync on {0}, sending {1} bytes", handle.Handle, input.Length);
Ptr <MIDL_STUB_DESC> pStub;
if (!handle.GetPtr(out pStub))
{
pStub = handle.CreatePtr(new MIDL_STUB_DESC(
handle, handle.Pin(new RPC_CLIENT_INTERFACE(iid)), RpcApi.TYPE_FORMAT, false));
}
int cbOutput = 0;
var pcbOutput = new Ptr <int>(cbOutput);
IntPtr result = IntPtr.Zero;
IntPtr output = IntPtr.Zero;
var pOutput = new Ptr <IntPtr>(output);
using (Ptr <byte[]> pInputBuffer = new Ptr <byte[]>(input))
{
AsyncCallback cbRountine = (IntPtr pAsync, IntPtr pContext, RpcAsyncEvent _event) =>
{
RPC_ASYNC_STATE async = (RPC_ASYNC_STATE)Marshal.PtrToStructure(pAsync, typeof(RPC_ASYNC_STATE));
var myCallback = (APICallback)Marshal.GetDelegateForFunctionPointer(async.UserInfo, typeof(APICallback));
RpcError hr = RpcApi.RpcAsyncCompleteCall(pAsync, ref result);
if (RpcError.RPC_S_OK == hr)
{
if (RpcError.RPC_S_OK == (RpcError)result.ToInt32())
{
ExecuteAsyncResponse response;
try
{
cbOutput = pcbOutput.Data;
byte[] _output = new byte[cbOutput];
Marshal.Copy(pOutput.Data, _output, 0, cbOutput);
response.result = RpcError.RPC_S_OK;
response.response = _output;
}
catch (Exception e)
{
response.result = RpcError.RPC_E_FAIL;
response.response = null;
}
finally
{
RpcApi.Free(pOutput.Data);
}
myCallback(response);
}
else
{
ExecuteAsyncResponse response;
response.result = (RpcError)result.ToInt32();
response.response = null;
myCallback(response);
}
}
else
{
ExecuteAsyncResponse response;
response.result = hr;
response.response = null;
myCallback(response);
}
};
var pCallbackRoutine = new FunctionPtr <AsyncCallback>(cbRountine);
RPC_ASYNC_STATE asyncState = new RPC_ASYNC_STATE();
var _pAsyncState = new Ptr <RPC_ASYNC_STATE>(asyncState);
RpcApi.RpcAsyncInitializeHandle(_pAsyncState.Handle, Marshal.SizeOf(typeof(RPC_ASYNC_STATE)));
asyncState.Event = _pAsyncState.Data.Event;
asyncState.Flags = _pAsyncState.Data.Flags;
asyncState.Lock = _pAsyncState.Data.Lock;
asyncState.RuntimeInfo = _pAsyncState.Data.RuntimeInfo;
asyncState.Signature = _pAsyncState.Data.Signature;
asyncState.Size = _pAsyncState.Data.Size;
asyncState.StubInfo = _pAsyncState.Data.StubInfo;
asyncState.NotificationType = RpcNotificationTypes.RpcNotificationTypeCallback;
asyncState.u.NotificationRoutine = pCallbackRoutine.Handle;
var ptrCB = Marshal.GetFunctionPointerForDelegate(callback);
asyncState.UserInfo = ptrCB;
var pAsyncState = new Ptr <RPC_ASYNC_STATE>(asyncState);
if (RpcApi.Is64BitProcess)
{
try
{
result = RpcApi.NdrAsyncClientCallx64(pStub.Handle, RpcApi.ASYNC_FUNC_FORMAT_PTR.Handle, pAsyncState.Handle, handle.Handle,
input.Length, pInputBuffer.Handle, out cbOutput, out output);
}
catch (SEHException ex)
{
RpcException.Assert(ex.ErrorCode);
throw;
}
}
else
{
using (Ptr <Int32[]> pStack32 = new Ptr <Int32[]>(new Int32[7]))
{
pStack32.Data[0] = pAsyncState.Handle.ToInt32();
pStack32.Data[1] = handle.Handle.ToInt32();
pStack32.Data[2] = input.Length;
pStack32.Data[3] = pInputBuffer.Handle.ToInt32();
pStack32.Data[4] = pcbOutput.Handle.ToInt32();
pStack32.Data[5] = pOutput.Handle.ToInt32();
pStack32.Data[6] = 0; //reserved
try
{
result = RpcApi.NdrAsyncClientCallx86(pStub.Handle, RpcApi.ASYNC_FUNC_FORMAT_PTR.Handle, pStack32.Handle);
}
catch (SEHException ex)
{
Log.Verbose("exception on {0}", ex);
RpcException.Assert(ex.ErrorCode);
throw;
}
}
}
GC.KeepAlive(pInputBuffer);
}
RpcException.Assert(result.ToInt32());
Log.Verbose("InvokeRpc.InvokeRpc response on {0}", handle.Handle);
}
private static byte[] InvokeRpc(RpcHandle handle, Guid iid, byte[] input)
{
Log.Verbose("InvokeRpc on {0}, sending {1} bytes", handle.Handle, input.Length);
Ptr<MIDL_STUB_DESC> pStub;
if (!handle.GetPtr(out pStub))
{
pStub =
handle.CreatePtr(new MIDL_STUB_DESC(handle, handle.Pin(new RPC_CLIENT_INTERFACE(iid)),
RpcApi.TYPE_FORMAT,
false));
}
int szResponse = 0;
IntPtr response, result;
using (Ptr<byte[]> pInputBuffer = new Ptr<byte[]>(input))
{
if (RpcApi.Is64BitProcess)
{
try
{
result = NdrClientCall2x64(pStub.Handle, RpcApi.FUNC_FORMAT_PTR.Handle, handle.Handle,
input.Length,
pInputBuffer.Handle, out szResponse, out response);
}
catch (SEHException ex)
{
RpcException.Assert(ex.ErrorCode);
throw;
}
}
else
{
using (Ptr<Int32[]> pStack32 = new Ptr<Int32[]>(new Int32[10]))
{
pStack32.Data[0] = handle.Handle.ToInt32();
pStack32.Data[1] = input.Length;
pStack32.Data[2] = pInputBuffer.Handle.ToInt32();
pStack32.Data[3] = pStack32.Handle.ToInt32() + (sizeof (int)*6);
pStack32.Data[4] = pStack32.Handle.ToInt32() + (sizeof (int)*8);
pStack32.Data[5] = 0; //reserved
pStack32.Data[6] = 0; //output: int dwSizeResponse
pStack32.Data[8] = 0; //output: byte* lpResponse
try
{
result = NdrClientCall2x86(pStub.Handle, RpcApi.FUNC_FORMAT_PTR.Handle, pStack32.Handle);
}
catch (SEHException ex)
{
RpcException.Assert(ex.ErrorCode);
throw;
}
szResponse = pStack32.Data[6];
response = new IntPtr(pStack32.Data[8]);
}
}
GC.KeepAlive(pInputBuffer);
}
RpcException.Assert(result.ToInt32());
Log.Verbose("InvokeRpc.InvokeRpc response on {0}, recieved {1} bytes", handle.Handle, szResponse);
byte[] output = new byte[szResponse];
if (szResponse > 0 && response != IntPtr.Zero)
{
Marshal.Copy(response, output, 0, output.Length);
}
RpcApi.Free(response);
return output;
}
private static void InvokeRpcAsync(RpcHandle handle, Guid iid, byte[] input, APICallback callback)
{
Log.Verbose("InvokeRpcAsync on {0}, sending {1} bytes", handle.Handle, input.Length);
Ptr<MIDL_STUB_DESC> pStub;
if (!handle.GetPtr(out pStub))
{
pStub = handle.CreatePtr(new MIDL_STUB_DESC(
handle, handle.Pin(new RPC_CLIENT_INTERFACE(iid)), RpcApi.TYPE_FORMAT, false));
}
int cbOutput = 0;
var pcbOutput = new Ptr<int>(cbOutput);
IntPtr result = IntPtr.Zero;
IntPtr output = IntPtr.Zero;
var pOutput = new Ptr<IntPtr>(output);
using (Ptr<byte[]> pInputBuffer = new Ptr<byte[]>(input))
{
AsyncCallback cbRountine = (IntPtr pAsync, IntPtr pContext, RpcAsyncEvent _event) =>
{
RPC_ASYNC_STATE async = (RPC_ASYNC_STATE)Marshal.PtrToStructure(pAsync, typeof(RPC_ASYNC_STATE));
var myCallback = (APICallback)Marshal.GetDelegateForFunctionPointer(async.UserInfo, typeof(APICallback));
RpcError hr = RpcApi.RpcAsyncCompleteCall(pAsync, ref result);
if (RpcError.RPC_S_OK == hr)
{
if (RpcError.RPC_S_OK == (RpcError) result.ToInt32())
{
ExecuteAsyncResponse response;
try
{
cbOutput = pcbOutput.Data;
byte[] _output = new byte[cbOutput];
Marshal.Copy(pOutput.Data, _output, 0, cbOutput);
response.result = RpcError.RPC_S_OK;
response.response = _output;
}
catch (Exception e)
{
response.result = RpcError.RPC_E_FAIL;
response.response = null;
}
finally
{
RpcApi.Free(pOutput.Data);
}
myCallback(response);
}
else
{
ExecuteAsyncResponse response;
response.result = (RpcError)result.ToInt32();
response.response = null;
myCallback(response);
}
}
else
{
ExecuteAsyncResponse response;
response.result = hr;
response.response = null;
myCallback(response);
}
};
var pCallbackRoutine = new FunctionPtr<AsyncCallback>(cbRountine);
RPC_ASYNC_STATE asyncState = new RPC_ASYNC_STATE();
var _pAsyncState = new Ptr<RPC_ASYNC_STATE>(asyncState);
RpcApi.RpcAsyncInitializeHandle(_pAsyncState.Handle, Marshal.SizeOf(typeof(RPC_ASYNC_STATE)));
asyncState.Event = _pAsyncState.Data.Event;
asyncState.Flags = _pAsyncState.Data.Flags;
asyncState.Lock = _pAsyncState.Data.Lock;
asyncState.RuntimeInfo = _pAsyncState.Data.RuntimeInfo;
asyncState.Signature = _pAsyncState.Data.Signature;
asyncState.Size = _pAsyncState.Data.Size;
asyncState.StubInfo = _pAsyncState.Data.StubInfo;
asyncState.NotificationType = RpcNotificationTypes.RpcNotificationTypeCallback;
asyncState.u.NotificationRoutine = pCallbackRoutine.Handle;
var ptrCB = Marshal.GetFunctionPointerForDelegate(callback);
asyncState.UserInfo = ptrCB;
var pAsyncState = new Ptr<RPC_ASYNC_STATE>(asyncState);
if (RpcApi.Is64BitProcess)
{
try
{
result = RpcApi.NdrAsyncClientCallx64(pStub.Handle, RpcApi.ASYNC_FUNC_FORMAT_PTR.Handle, pAsyncState.Handle, handle.Handle,
input.Length, pInputBuffer.Handle, out cbOutput, out output);
}
catch (SEHException ex)
{
RpcException.Assert(ex.ErrorCode);
throw;
}
}
else
{
using (Ptr<Int32[]> pStack32 = new Ptr<Int32[]>(new Int32[7]))
{
pStack32.Data[0] = pAsyncState.Handle.ToInt32();
pStack32.Data[1] = handle.Handle.ToInt32();
pStack32.Data[2] = input.Length;
pStack32.Data[3] = pInputBuffer.Handle.ToInt32();
pStack32.Data[4] = pcbOutput.Handle.ToInt32();
pStack32.Data[5] = pOutput.Handle.ToInt32();
pStack32.Data[6] = 0; //reserved
try
{
result = RpcApi.NdrAsyncClientCallx86(pStub.Handle, RpcApi.ASYNC_FUNC_FORMAT_PTR.Handle, pStack32.Handle);
}
catch (SEHException ex)
{
Log.Verbose("exception on {0}", ex);
RpcException.Assert(ex.ErrorCode);
throw;
}
}
}
GC.KeepAlive(pInputBuffer);
}
RpcException.Assert(result.ToInt32());
Log.Verbose("InvokeRpc.InvokeRpc response on {0}", handle.Handle);
}
private static byte[] InvokeRpc(RpcHandle handle, Guid iid, byte[] input)
{
Log.Verbose("InvokeRpc on {0}, sending {1} bytes", handle.Handle, input.Length);
Ptr<MIDL_STUB_DESC> pStub;
if (!handle.GetPtr(out pStub))
{
pStub =
handle.CreatePtr(new MIDL_STUB_DESC(handle, handle.Pin(new RPC_CLIENT_INTERFACE(iid)),
RpcApi.TYPE_FORMAT,
false));
}
int szResponse = 0;
var pszResponse = new Ptr<int>(szResponse);
IntPtr response = IntPtr.Zero;
var pResponse = new Ptr<IntPtr>(response);
IntPtr result;
using (Ptr<byte[]> pInputBuffer = new Ptr<byte[]>(input))
{
if (RpcApi.Is64BitProcess)
{
try
{
result = RpcApi.NdrClientCall2x64(
pStub.Handle, RpcApi.FUNC_FORMAT_PTR.Handle, handle.Handle,
input.Length, pInputBuffer.Handle, out szResponse, out response
);
}
catch (SEHException ex)
{
int internalError = ex.ErrorCode;
if ((uint)RpcError.RPC_E_FAIL == (uint)internalError)
{
if ((int)RpcError.RPC_S_OK != Marshal.GetExceptionCode())
{
internalError = Marshal.GetExceptionCode();
}
}
RpcException.Assert(internalError);
throw;
}
}
else
{
using (Ptr<Int32[]> pStack32 = new Ptr<Int32[]>(new Int32[6]))
{
pStack32.Data[0] = handle.Handle.ToInt32();
pStack32.Data[1] = input.Length;
pStack32.Data[2] = pInputBuffer.Handle.ToInt32();
pStack32.Data[3] = pszResponse.Handle.ToInt32();
pStack32.Data[4] = pResponse.Handle.ToInt32();
pStack32.Data[5] = 0; // reserved
try
{
result = RpcApi.NdrClientCall2x86(pStub.Handle, RpcApi.FUNC_FORMAT_PTR.Handle, pStack32.Handle);
}
catch (SEHException ex)
{
int internalError = ex.ErrorCode;
if ((uint)RpcError.RPC_E_FAIL == (uint)internalError)
{
if ((int)RpcError.RPC_S_OK != Marshal.GetExceptionCode())
{
internalError = Marshal.GetExceptionCode();
}
}
RpcException.Assert(internalError);
throw;
}
}
}
GC.KeepAlive(pInputBuffer);
}
RpcException.Assert(result.ToInt32());
szResponse = pszResponse.Data;
response = pResponse.Data;
byte[] output = new byte[szResponse];
if (szResponse > 0 && pResponse.Handle != IntPtr.Zero)
{
Marshal.Copy(response, output, 0, output.Length);
}
RpcApi.Free(response);
return output;
}
private static byte[] InvokeRpc(RpcHandle handle, Guid iid, byte[] input)
{
RpcTrace.Verbose("InvokeRpc on {0}, sending {1} bytes", handle.Handle, input.Length);
Ptr <MIDL_STUB_DESC> pStub;
if (!handle.GetPtr(out pStub))
{
pStub =
handle.CreatePtr(new MIDL_STUB_DESC(handle, handle.Pin(ClientInterfaceFactory.CreatExplicitBytesClient(iid)),
RpcRuntime.TYPE_FORMAT,
false));
}
int szResponse = 0;
IntPtr response, result;
using (Ptr <byte[]> pInputBuffer = new Ptr <byte[]>(input))
{
if (RpcRuntime.Is64BitProcess)
{
try
{
result = NativeMethods.NdrClientCall2x64(pStub.Handle, RpcRuntime.FUNC_FORMAT_PTR.Handle, handle.Handle,
input.Length,
pInputBuffer.Handle, out szResponse, out response);
}
catch (SEHException ex)
{
RpcTrace.Error(ex);
Guard.Assert(ex.ErrorCode);
throw;
}
}
else
{
using (Ptr <Int32[]> pStack32 = new Ptr <Int32[]>(new Int32[10]))
{
pStack32.Data[0] = handle.Handle.ToInt32();
pStack32.Data[1] = input.Length;
pStack32.Data[2] = pInputBuffer.Handle.ToInt32();
pStack32.Data[3] = pStack32.Handle.ToInt32() + (sizeof(int) * 6);
pStack32.Data[4] = pStack32.Handle.ToInt32() + (sizeof(int) * 8);
pStack32.Data[5] = 0; //reserved
pStack32.Data[6] = 0; //output: int dwSizeResponse
pStack32.Data[8] = 0; //output: byte* lpResponse
try
{
result = NativeMethods.NdrClientCall2x86(pStub.Handle, RpcRuntime.FUNC_FORMAT_PTR.Handle, pStack32.Handle);
}
catch (SEHException ex)
{
RpcTrace.Error(ex);
Guard.Assert(ex.ErrorCode);
throw;
}
szResponse = pStack32.Data[6];
response = new IntPtr(pStack32.Data[8]);
}
}
GC.KeepAlive(pInputBuffer);
}
// on local machine
// if 32 bit server just throws Exception in server side handler
// then 32 bits client can see "-2147467259" debug view of pointer result
// then 64 bits client can see "2147500037" debug view of pointer result
// then 32 bits client can do ToInt32 and things work fine
// then 64 bits client can do ToInt32 and get arithmetic overflow exception
// hence using ToInt64 for 64 bits client
if (IntPtr.Size == 8)
{
Guard.Assert(result.ToInt64());
}
else
{
Guard.Assert(result.ToInt32());
}
RpcTrace.Verbose("InvokeRpc.InvokeRpc response on {0}, received {1} bytes", handle.Handle, szResponse);
byte[] output = new byte[szResponse];
if (szResponse > 0 && response != IntPtr.Zero)
{
Marshal.Copy(response, output, 0, output.Length);
}
RpcRuntime.Free(response);
return(output);
}
private static byte[] InvokeRpc(RpcHandle handle, Guid iid, byte[] input)
{
RpcTrace.Verbose("InvokeRpc on {0}, sending {1} bytes", handle.Handle, input.Length);
Ptr<MIDL_STUB_DESC> pStub;
if (!handle.GetPtr(out pStub))
{
pStub =
handle.CreatePtr(new MIDL_STUB_DESC(handle, handle.Pin(ClientInterfaceFactory.CreatExplicitBytesClient(iid)),
RpcRuntime.TYPE_FORMAT,
false));
}
int szResponse = 0;
IntPtr response, result;
using (Ptr<byte[]> pInputBuffer = new Ptr<byte[]>(input))
{
if (RpcRuntime.Is64BitProcess)
{
try
{
result = NativeMethods.NdrClientCall2x64(pStub.Handle, RpcRuntime.FUNC_FORMAT_PTR.Handle, handle.Handle,
input.Length,
pInputBuffer.Handle, out szResponse, out response);
}
catch (SEHException ex)
{
RpcTrace.Error(ex);
Guard.Assert(ex.ErrorCode);
throw;
}
}
else
{
using (Ptr<Int32[]> pStack32 = new Ptr<Int32[]>(new Int32[10]))
{
pStack32.Data[0] = handle.Handle.ToInt32();
pStack32.Data[1] = input.Length;
pStack32.Data[2] = pInputBuffer.Handle.ToInt32();
pStack32.Data[3] = pStack32.Handle.ToInt32() + (sizeof (int)*6);
pStack32.Data[4] = pStack32.Handle.ToInt32() + (sizeof (int)*8);
pStack32.Data[5] = 0; //reserved
pStack32.Data[6] = 0; //output: int dwSizeResponse
pStack32.Data[8] = 0; //output: byte* lpResponse
try
{
result = NativeMethods.NdrClientCall2x86(pStub.Handle, RpcRuntime.FUNC_FORMAT_PTR.Handle, pStack32.Handle);
}
catch (SEHException ex)
{
RpcTrace.Error(ex);
Guard.Assert(ex.ErrorCode);
throw;
}
szResponse = pStack32.Data[6];
response = new IntPtr(pStack32.Data[8]);
}
}
GC.KeepAlive(pInputBuffer);
}
// on local machine
// if 32 bit server just throws Exception in server side handler
// then 32 bits client can see "-2147467259" debug view of pointer result
// then 64 bits client can see "2147500037" debug view of pointer result
// then 32 bits client can do ToInt32 and things work fine
// then 64 bits client can do ToInt32 and get arithmetic overflow exception
// hence using ToInt64 for 64 bits client
if (IntPtr.Size == 8)
{
Guard.Assert(result.ToInt64());
}
else
{
Guard.Assert(result.ToInt32());
}
RpcTrace.Verbose("InvokeRpc.InvokeRpc response on {0}, received {1} bytes", handle.Handle, szResponse);
byte[] output = new byte[szResponse];
if (szResponse > 0 && response != IntPtr.Zero)
{
Marshal.Copy(response, output, 0, output.Length);
}
RpcRuntime.Free(response);
return output;
}
