| /* |
| * Copyright (C) 2024 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 "src/trace_redaction/optimize_timeline.h" |
| |
| #include "perfetto/base/status.h" |
| #include "src/trace_redaction/trace_redaction_framework.h" |
| |
| namespace perfetto::trace_redaction { |
| |
| base::Status OptimizeTimeline::Build(Context* context) const { |
| if (!context->timeline) { |
| return base::ErrStatus( |
| "Cannot optimize a null timeline. Are you missing BuildTimeline or an " |
| "alternative?"); |
| } |
| |
| if (!context->package_uid.has_value()) { |
| return base::ErrStatus( |
| "Missing package uid. Are you missing FindPackageUid or an " |
| "alternative?"); |
| } |
| |
| auto* timeline = context->timeline.get(); |
| |
| // Change the timeline from read-only to write only mode. |
| timeline->Sort(); |
| |
| // Goes over the whole timeline, reducing the distance between a pid and its |
| // uid. |
| timeline->Flatten(); |
| |
| // Reduce the number of events. This makes the timeline specific to the |
| // package uid (i.e. either 0 or package_uid will be returned). |
| timeline->Reduce(*context->package_uid); |
| |
| return base::OkStatus(); |
| } |
| |
| } // namespace perfetto::trace_redaction |