Implement vendor-available vold interface

Bug: 362567323
Test: mmm system/vold
Change-Id: I967faeb221741cbd8d6c13b25cd57c37fbb6e839
diff --git a/VendorVoldNativeService.h b/VendorVoldNativeService.h
new file mode 100644
index 0000000..884ccb0
--- /dev/null
+++ b/VendorVoldNativeService.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2024 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 _VENDOR_VOLD_NATIVE_SERVICE_H_
+#define _VENDOR_VOLD_NATIVE_SERVICE_H_
+
+#include <android/system/vold/BnVold.h>
+#include <android/system/vold/CheckpointingState.h>
+#include <android/system/vold/IVoldCheckpointListener.h>
+
+namespace android::vold {
+
+class VendorVoldNativeService : public android::system::vold::BnVold {
+  public:
+    /** Start the service, but if it's not declared, give up and return OK. */
+    static status_t try_start();
+
+    binder::Status registerCheckpointListener(
+            const sp<android::system::vold::IVoldCheckpointListener>& listener,
+            android::system::vold::CheckpointingState* _aidl_return) final;
+};
+
+}  // namespace android::vold
+
+#endif  // _VENDOR_VOLD_NATIVE_SERVICE_H_
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