From 1536db887f496b6c50522d62be22d9f6584eaf87 Mon Sep 17 00:00:00 2001
From: Tianjie Xu <xunchang@google.com>
Date: Tue, 14 May 2019 10:54:43 -0700
Subject: Add UpdaterRuntime class

This class adds a wrapper to the runtime dependent functions. Therefore,
the behavior of update on device stays the same, while simulators can
have their own implementations. Also change the caller side of the
registered updater functions to call these runtime wrappers.

Bug: 131911365
Test: unit tests pass, sideload an update on cuttlefish
Change-Id: Ib3ab67132991d67fc132f27120e4152439d16ac5
---
 updater/include/updater/updater_runtime.h | 58 +++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 updater/include/updater/updater_runtime.h

(limited to 'updater/include/updater/updater_runtime.h')

diff --git a/updater/include/updater/updater_runtime.h b/updater/include/updater/updater_runtime.h
new file mode 100644
index 000000000..6cd0ffb48
--- /dev/null
+++ b/updater/include/updater/updater_runtime.h
@@ -0,0 +1,58 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include <memory>
+#include <string>
+#include <string_view>
+#include <utility>
+#include <vector>
+
+#include "edify/updater_runtime_interface.h"
+
+struct selabel_handle;
+struct Partition;
+
+class UpdaterRuntime : public UpdaterRuntimeInterface {
+ public:
+  explicit UpdaterRuntime(struct selabel_handle* sehandle) : sehandle_(sehandle) {}
+  ~UpdaterRuntime() override = default;
+
+  bool IsSimulator() const override {
+    return false;
+  }
+
+  std::string GetProperty(const std::string_view key,
+                          const std::string_view default_value) const override;
+
+  std::string FindBlockDeviceName(const std::string_view name) const override;
+
+  int Mount(const std::string_view location, const std::string_view mount_point,
+            const std::string_view fs_type, const std::string_view mount_options) override;
+  bool IsMounted(const std::string_view mount_point) const override;
+  std::pair<bool, int> Unmount(const std::string_view mount_point) override;
+
+  bool ReadFileToString(const std::string_view filename, std::string* content) const override;
+  bool WriteStringToFile(const std::string_view content,
+                         const std::string_view filename) const override;
+
+  int WipeBlockDevice(const std::string_view filename, size_t len) const override;
+  int RunProgram(const std::vector<std::string>& args, bool is_vfork) const override;
+  int Tune2Fs(const std::vector<std::string>& args) const override;
+
+  struct selabel_handle* sehandle_{ nullptr };
+};
-- 
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