BootControl exposes DynamicPartitionControl.

Add BootControlInterface::GetDynamicPartitionControl, which
exposes the internal DynamicPartitionControlInterface object.

BootControlStub / FakeBootControl / BootControlChromeOS uses
DynamicPartitionControlStub (all functions succeeds).

BootControlAndroid uses DynamicPartitionControlAndroid.
GetPartitionDevice is exposed so that BootControlAndroid can use it.

Follow-up CLs delete duplicated PreparePartitionsForUpdate
and Cleanup from BootControlInterface so that BootControlAndroid remains
a thin wrapper of the HAL (+GetPartitionDevice, which exists before
dynamic partitions.)

Test: update_engine_unittests

Change-Id: Ifc2aa2ee8a63ef581c8ebc562ec158794ac51dfd

1 files changed, 43 insertions, 0 deletions

diff --git a/common/dynamic_partition_control_stub.h b/common/dynamic_partition_control_stub.h
new file mode 100644
index 00000000..e7895dee
--- /dev/null
+++ b/common/dynamic_partition_control_stub.h
@@ -0,0 +1,43 @@
+//
+// Copyright (C) 2019 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 UPDATE_ENGINE_COMMON_DYNAMIC_PARTITION_CONTROL_STUB_H_
+#define UPDATE_ENGINE_COMMON_DYNAMIC_PARTITION_CONTROL_STUB_H_
+
+#include <stdint.h>
+
+#include <string>
+
+#include "update_engine/common/dynamic_partition_control_interface.h"
+
+namespace chromeos_update_engine {
+
+class DynamicPartitionControlStub : public DynamicPartitionControlInterface {
+ public:
+  FeatureFlag GetDynamicPartitionsFeatureFlag() override;
+  FeatureFlag GetVirtualAbFeatureFlag() override;
+  void Cleanup() override;
+  bool PreparePartitionsForUpdate(uint32_t source_slot,
+                                  uint32_t target_slot,
+                                  const DeltaArchiveManifest& manifest,
+                                  bool update) override;
+
+  bool FinishUpdate() override;
+};
+
+}  // namespace chromeos_update_engine
+
+#endif  // UPDATE_ENGINE_COMMON_DYNAMIC_PARTITION_CONTROL_STUB_H_