Make error handling kill context activity. Add parameter validation.

bug 10427951

Change-Id: I4abba969e34903265b84ee88d6a90bc9b9df5481
diff --git a/cpp/rsCppInternal.h b/cpp/rsCppInternal.h
new file mode 100644
index 0000000..56ed5a3
--- /dev/null
+++ b/cpp/rsCppInternal.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+#ifndef ANDROID_RS_CPP_INTERNAL_H
+#define ANDROID_RS_CPP_INTERNAL_H
+
+#define tryDispatch(rs, dispatch)               \
+    if (rs->getError() == RS_SUCCESS) {         \
+        dispatch;                               \
+    }
+
+#endif