Add persistence for app hibernation states

Persist hibernation states to disk. This CL persists the user-level
and global hibernation states to disk.

Bug: 175829330
Test: atest AppHibernationServiceTest
Test: atest HibernationStateDiskStoreTest
Change-Id: If58d648d720bed1693b9346c4d0e85074daec931

1 files changed, 42 insertions, 0 deletions

diff --git a/core/proto/android/server/apphibernationservice.proto b/core/proto/android/server/apphibernationservice.proto
new file mode 100644
index 000000000000..d341c4b2f0a8
--- /dev/null
+++ b/core/proto/android/server/apphibernationservice.proto
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+syntax = "proto2";
+package com.android.server.apphibernation;
+
+option java_multiple_files = true;
+
+// Proto for hibernation states for all packages for a user.
+message UserLevelHibernationStatesProto {
+  repeated UserLevelHibernationStateProto hibernation_state = 1;
+}
+
+// Proto for com.android.server.apphibernation.UserLevelState.
+message UserLevelHibernationStateProto {
+  optional string package_name = 1;
+  optional bool hibernated = 2;
+}
+
+// Proto for global hibernation states for all packages.
+message GlobalLevelHibernationStatesProto {
+  repeated GlobalLevelHibernationStateProto hibernation_state = 1;
+}
+
+// Proto for com.android.server.apphibernation.GlobalLevelState
+message GlobalLevelHibernationStateProto {
+  optional string package_name = 1;
+  optional bool hibernated = 2;
+}
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