chromium/third_party/perfetto/src/tracing/internal/tracing_muxer_fake.h

/*
 * Copyright (C) 2021 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_TRACING_INTERNAL_TRACING_MUXER_FAKE_H_
#define SRC_TRACING_INTERNAL_TRACING_MUXER_FAKE_H_

#include "perfetto/base/compiler.h"
#include "perfetto/tracing/internal/tracing_muxer.h"

namespace perfetto {
namespace internal {

// An always-fail implementation of TracingMuxer. Before tracing has been
// initialiazed, all muxer operations will route here and fail with a helpful
// error message. This is to avoid introducing null checks in
// performance-critical parts of the codebase.
class TracingMuxerFake : public TracingMuxer { … };

}  // namespace internal
}  // namespace perfetto

#endif  // SRC_TRACING_INTERNAL_TRACING_MUXER_FAKE_H_