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80 lines
2.8 KiB
80 lines
2.8 KiB
4 months ago
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/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_RUNTIME_COMPAT_FRAMEWORK_H_
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#define ART_RUNTIME_COMPAT_FRAMEWORK_H_
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#include <set>
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#include "base/macros.h"
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#include "base/mutex.h"
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#include "base/string_view_cpp20.h"
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namespace art {
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// ART counterpart of the compat framework (go/compat-framework).
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// Created in order to avoid repeated up-calls to Java.
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class CompatFramework {
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public:
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// Compat change reported state
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// This must be kept in sync with AppCompatibilityChangeReported.State in
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// frameworks/proto_logging/stats/atoms.proto
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enum class ChangeState {
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kUnknown,
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kEnabled,
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kDisabled,
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kLogged
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};
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CompatFramework();
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~CompatFramework();
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void SetDisabledCompatChanges(const std::set<uint64_t>& disabled_changes) {
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disabled_compat_changes_ = disabled_changes;
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}
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const std::set<uint64_t>& GetDisabledCompatChanges() const {
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return disabled_compat_changes_;
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}
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// Query if a given compatibility change is enabled for the current process.
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// This also gets logged to logcat, and we add the information we logged in
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// reported_compat_changes_. This ensures we only log once per change id for the app's lifetime.
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bool IsChangeEnabled(uint64_t change_id);
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// Logs that the code path for this compatibility change has been reached.
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// This also gets logged to logcat, and we add the information we logged in
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// reported_compat_changes_. This ensures we only log once per change id for the app's lifetime.
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void LogChange(uint64_t change_id);
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private:
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// Get a string equivalent for a compatibility change state.
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static std::string_view ChangeStateToString(ChangeState s);
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// Report the state of a compatibility change to logcat.
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// TODO(145743810): also report to statsd.
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void ReportChange(uint64_t change_id, ChangeState state);
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// A set of disabled compat changes for the running app, all other changes are enabled.
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std::set<uint64_t> disabled_compat_changes_;
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// A set of reported compat changes for the running app.
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std::set<uint64_t> reported_compat_changes_ GUARDED_BY(reported_compat_changes_lock_);
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Mutex reported_compat_changes_lock_ DEFAULT_MUTEX_ACQUIRED_AFTER;
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};
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} // namespace art
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#endif // ART_RUNTIME_COMPAT_FRAMEWORK_H_
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