src/trace_redaction/redact_sched_switch.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_REDACT_SCHED_SWITCH_H_
#define SRC_TRACE_REDACTION_REDACT_SCHED_SWITCH_H_

#include <string>

#include "src/trace_redaction/trace_redaction_framework.h"

namespace perfetto::trace_redaction {

//  Assumptions:
//    1. This is a hot path (a lot of ftrace packets)
//    2. Allocations are slower than CPU cycles.
//
// Redact sched switch is called "redact" and not "prune" or "scrub" because it
// is not removing sched switch events, but rather removing information from
// within the event.
class RedactSchedSwitch final : public TransformPrimitive {
 public:
  base::Status Transform(const Context& context,
                         std::string* packet) const override;
};

}  // namespace perfetto::trace_redaction

#endif  // SRC_TRACE_REDACTION_REDACT_SCHED_SWITCH_H_