1 /* 2 * Copyright 2019 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 #ifndef API_TRANSPORT_WEBRTC_KEY_VALUE_CONFIG_H_ 11 #define API_TRANSPORT_WEBRTC_KEY_VALUE_CONFIG_H_ 12 13 #include <string> 14 15 #include "absl/strings/string_view.h" 16 #include "rtc_base/system/rtc_export.h" 17 18 namespace webrtc { 19 20 // An interface that provides a key-value mapping for configuring internal 21 // details of WebRTC. Note that there's no guarantess that the meaning of a 22 // particular key value mapping will be preserved over time and no announcements 23 // will be made if they are changed. It's up to the library user to ensure that 24 // the behavior does not break. 25 class RTC_EXPORT WebRtcKeyValueConfig { 26 public: 27 virtual ~WebRtcKeyValueConfig() = default; 28 // The configured value for the given key. Defaults to an empty string. 29 virtual std::string Lookup(absl::string_view key) const = 0; 30 }; 31 } // namespace webrtc 32 33 #endif // API_TRANSPORT_WEBRTC_KEY_VALUE_CONFIG_H_ 34