New BootControlInterface implementation for Android.
This patch hides the platform-specific construction of a
BootControlInterface in a factory method shared by both Android and
Chromium OS. This also include a stub implementation for Android.
Bug: 23754584,23084776
TEST=emerge-link update_engine; `mma -i` builds these files without problem.
Change-Id: I43532e5cff1dc474453160f418ddd3c448f31938
diff --git a/boot_control_android.h b/boot_control_android.h
new file mode 100644
index 0000000..21c5878
--- /dev/null
+++ b/boot_control_android.h
@@ -0,0 +1,50 @@
+//
+// Copyright (C) 2015 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_BOOT_CONTROL_ANDROID_H_
+#define UPDATE_ENGINE_BOOT_CONTROL_ANDROID_H_
+
+#include <string>
+
+#include <gtest/gtest_prod.h> // for FRIEND_TEST
+
+#include "update_engine/boot_control_interface.h"
+
+namespace chromeos_update_engine {
+
+// The Android implementation of the BootControlInterface. This implementation
+// uses the libhardware's boot_control HAL to access the bootloader.
+class BootControlAndroid : public BootControlInterface {
+ public:
+ BootControlAndroid() = default;
+ ~BootControlAndroid() = default;
+
+ // BootControlInterface overrides.
+ unsigned int GetNumSlots() const override;
+ BootControlInterface::Slot GetCurrentSlot() const override;
+ bool GetPartitionDevice(const std::string& partition_name,
+ BootControlInterface::Slot slot,
+ std::string* device) const override;
+ bool IsSlotBootable(BootControlInterface::Slot slot) const override;
+ bool MarkSlotUnbootable(BootControlInterface::Slot slot) override;
+
+ private:
+ DISALLOW_COPY_AND_ASSIGN(BootControlAndroid);
+};
+
+} // namespace chromeos_update_engine
+
+#endif // UPDATE_ENGINE_BOOT_CONTROL_ANDROID_H_