chromium/third_party/webrtc/logging/rtc_event_log/events/rtc_event_field_encoding_parser.cc

/*
 *  Copyright (c) 2021 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#include "logging/rtc_event_log/events/rtc_event_field_encoding_parser.h"

#include <algorithm>
#include <cstddef>
#include <cstdint>
#include <tuple>

#include "absl/strings/string_view.h"
#include "absl/types/optional.h"
#include "api/array_view.h"
#include "logging/rtc_event_log/encoder/var_int.h"
#include "logging/rtc_event_log/events/fixed_length_encoding_parameters_v3.h"
#include "logging/rtc_event_log/events/rtc_event_field_encoding.h"
#include "logging/rtc_event_log/events/rtc_event_field_extraction.h"
#include "logging/rtc_event_log/events/rtc_event_log_parse_status.h"
#include "rtc_base/bitstream_reader.h"
#include "rtc_base/checks.h"

namespace {
absl::optional<webrtc::FieldType> ConvertFieldType(uint64_t value) { … }
}  // namespace

namespace webrtc {

uint64_t EventParser::ReadLittleEndian(uint8_t bytes) { … }

uint64_t EventParser::ReadVarInt() { … }

uint64_t EventParser::ReadOptionalValuePositions() { … }

uint64_t EventParser::ReadSingleValue(FieldType field_type) { … }

void EventParser::ReadDeltasAndPopulateValues(
    FixedLengthEncodingParametersV3 params,
    uint64_t num_deltas,
    uint64_t base) { … }

RtcEventLogParseStatus EventParser::Initialize(absl::string_view s,
                                               bool batched) { … }

RtcEventLogParseStatus EventParser::ParseNumericFieldInternal(
    uint64_t value_bit_width,
    FieldType field_type) { … }

RtcEventLogParseStatus EventParser::ParseStringFieldInternal() { … }

RtcEventLogParseStatus EventParser::ParseField(const FieldParameters& params) { … }

RtcEventLogParseStatusOr<rtc::ArrayView<absl::string_view>>
EventParser::ParseStringField(const FieldParameters& params,
                              bool required_field) { … }

RtcEventLogParseStatusOr<rtc::ArrayView<uint64_t>>
EventParser::ParseNumericField(const FieldParameters& params,
                               bool required_field) { … }

RtcEventLogParseStatusOr<EventParser::ValueAndPostionView>
EventParser::ParseOptionalNumericField(const FieldParameters& params,
                                       bool required_field) { … }

}  // namespace webrtc