src/trace_redaction/scrub_process_trees.h

/*
 * 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.
 */

#ifndef SRC_TRACE_REDACTION_SCRUB_PROCESS_TREES_H_
#define SRC_TRACE_REDACTION_SCRUB_PROCESS_TREES_H_

#include "perfetto/base/status.h"
#include "perfetto/protozero/field.h"
#include "src/trace_redaction/modify_process_trees.h"
#include "src/trace_redaction/trace_redaction_framework.h"

#include "protos/perfetto/trace/ps/process_tree.pbzero.h"

namespace perfetto::trace_redaction {

// Removes process names and thread names from process_trees if their pids/tids
// are not connected to the target package.
class ScrubProcessTrees : public ModifyProcessTree {
 protected:
  base::Status VerifyContext(const Context& context) const override;

  void TransformProcess(
      const Context& context,
      const protozero::Field& timestamp,
      const protozero::Field& process,
      protos::pbzero::ProcessTree* process_trees) const override;

  void TransformThread(
      const Context& context,
      const protozero::Field& timestamp,
      const protozero::Field& thread,
      protos::pbzero::ProcessTree* process_tree) const override;
};

}  // namespace perfetto::trace_redaction

#endif  // SRC_TRACE_REDACTION_SCRUB_PROCESS_TREES_H_