68 lines
2.1 KiB
C++
68 lines
2.1 KiB
C++
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/*
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* Copyright (c) 2019 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "rtc_base/experiments/struct_parameters_parser.h"
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#include <algorithm>
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#include "rtc_base/logging.h"
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#include "rtc_base/strings/string_builder.h"
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namespace webrtc {
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namespace struct_parser_impl {
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namespace {
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size_t FindOrEnd(absl::string_view str, size_t start, char delimiter) {
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size_t pos = str.find(delimiter, start);
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pos = (pos == std::string::npos) ? str.length() : pos;
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return pos;
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}
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} // namespace
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void ParseConfigParams(
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absl::string_view config_str,
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std::map<std::string, std::function<bool(absl::string_view)>> field_map) {
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size_t i = 0;
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while (i < config_str.length()) {
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size_t val_end = FindOrEnd(config_str, i, ',');
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size_t colon_pos = FindOrEnd(config_str, i, ':');
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size_t key_end = std::min(val_end, colon_pos);
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size_t val_begin = key_end + 1u;
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std::string key(config_str.substr(i, key_end - i));
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absl::string_view opt_value;
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if (val_end >= val_begin)
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opt_value = config_str.substr(val_begin, val_end - val_begin);
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i = val_end + 1u;
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auto field = field_map.find(key);
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if (field != field_map.end()) {
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if (!field->second(opt_value)) {
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RTC_LOG(LS_WARNING) << "Failed to read field with key: '" << key
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<< "' in trial: \"" << config_str << "\"";
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}
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} else {
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RTC_LOG(LS_INFO) << "No field with key: '" << key
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<< "' (found in trial: \"" << config_str << "\")";
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}
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}
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}
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std::string EncodeStringStringMap(std::map<std::string, std::string> mapping) {
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rtc::StringBuilder sb;
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bool first = true;
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for (const auto& kv : mapping) {
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if (!first)
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sb << ",";
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sb << kv.first << ":" << kv.second;
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first = false;
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}
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return sb.Release();
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}
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} // namespace struct_parser_impl
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} // namespace webrtc
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