chromium/third_party/perfetto/src/trace_processor/util/trace_blob_view_reader.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_PROCESSOR_UTIL_TRACE_BLOB_VIEW_READER_H_
#define SRC_TRACE_PROCESSOR_UTIL_TRACE_BLOB_VIEW_READER_H_

#include <cstddef>
#include <optional>

#include "perfetto/ext/base/circular_queue.h"
#include "perfetto/trace_processor/trace_blob_view.h"

namespace perfetto::trace_processor::util {

// Helper class which handles all the complexity of reading pieces of data which
// span across multiple TraceBlobView chunks. It takes care of:
//  1) Buffering data until it can be read.
//  2) Stitching together the cross-chunk spanning pieces.
//  3) Dropping data when it is no longer necessary to be buffered.
class TraceBlobViewReader {};

}  // namespace perfetto::trace_processor::util

#endif  // SRC_TRACE_PROCESSOR_UTIL_TRACE_BLOB_VIEW_READER_H_