update_engine: Implement Excluder Class + Tests
Excluder persists the exclusion state for excluding certain names. This
will be used to exclude update Payloads which are contiuously faulty.
BUG=chromium:928805
TEST=FEATURES=test emerge-$B update_engine
TEST=USE="${USE} -dlc" FEATURES=test emerge-$B update_engine
Change-Id: I780a9cf2ad979833382a832e01833211ec2ccf7d
Reviewed-on: https://chromium-review.googlesource.com/c/aosp/platform/system/update_engine/+/2172074
Tested-by: Jae Hoon Kim <kimjae@chromium.org>
Commit-Queue: Jae Hoon Kim <kimjae@chromium.org>
Auto-Submit: Jae Hoon Kim <kimjae@chromium.org>
Reviewed-by: Amin Hassani <ahassani@chromium.org>
diff --git a/common/excluder_stub.cc b/common/excluder_stub.cc
new file mode 100644
index 0000000..a251765
--- /dev/null
+++ b/common/excluder_stub.cc
@@ -0,0 +1,43 @@
+//
+// Copyright (C) 2020 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.
+//
+
+#include "update_engine/common/excluder_stub.h"
+
+#include <memory>
+
+#include "update_engine/common/prefs_interface.h"
+
+using std::string;
+
+namespace chromeos_update_engine {
+
+std::unique_ptr<ExcluderInterface> CreateExcluder(PrefsInterface* prefs) {
+ return std::make_unique<ExcluderStub>();
+}
+
+bool ExcluderStub::Exclude(const string& name) {
+ return true;
+}
+
+bool ExcluderStub::IsExcluded(const string& name) {
+ return false;
+}
+
+bool ExcluderStub::Reset() {
+ return true;
+}
+
+} // namespace chromeos_update_engine