58 lines
2.1 KiB
C++
58 lines
2.1 KiB
C++
/*
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* Copyright (c) 2020 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 "test/explicit_key_value_config.h"
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#include "api/transport/webrtc_key_value_config.h"
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#include "rtc_base/checks.h"
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#include "system_wrappers/include/field_trial.h"
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namespace webrtc {
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namespace test {
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ExplicitKeyValueConfig::ExplicitKeyValueConfig(const std::string& s) {
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std::string::size_type field_start = 0;
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while (field_start < s.size()) {
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std::string::size_type separator_pos = s.find('/', field_start);
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RTC_CHECK_NE(separator_pos, std::string::npos)
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<< "Missing separator '/' after field trial key.";
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RTC_CHECK_GT(separator_pos, field_start)
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<< "Field trial key cannot be empty.";
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std::string key = s.substr(field_start, separator_pos - field_start);
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field_start = separator_pos + 1;
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RTC_CHECK_LT(field_start, s.size())
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<< "Missing value after field trial key. String ended.";
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separator_pos = s.find('/', field_start);
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RTC_CHECK_NE(separator_pos, std::string::npos)
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<< "Missing terminating '/' in field trial string.";
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RTC_CHECK_GT(separator_pos, field_start)
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<< "Field trial value cannot be empty.";
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std::string value = s.substr(field_start, separator_pos - field_start);
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field_start = separator_pos + 1;
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key_value_map_[key] = value;
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}
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// This check is technically redundant due to earlier checks.
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// We nevertheless keep the check to make it clear that the entire
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// string has been processed, and without indexing past the end.
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RTC_CHECK_EQ(field_start, s.size());
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}
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std::string ExplicitKeyValueConfig::Lookup(absl::string_view key) const {
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auto it = key_value_map_.find(std::string(key));
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if (it != key_value_map_.end())
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return it->second;
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return "";
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}
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} // namespace test
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} // namespace webrtc
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