50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
/*
|
|
* Copyright 2019 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.
|
|
*/
|
|
#ifndef API_FIELD_TRIALS_VIEW_H_
|
|
#define API_FIELD_TRIALS_VIEW_H_
|
|
|
|
#include <string>
|
|
|
|
#include "absl/strings/string_view.h"
|
|
#include "rtc_base/system/rtc_export.h"
|
|
|
|
namespace webrtc {
|
|
|
|
// An interface that provides the means to access field trials.
|
|
//
|
|
// Note that there are no guarantess that the meaning of a particular key-value
|
|
// mapping will be preserved over time and no announcements will be made if they
|
|
// are changed. It's up to the library user to ensure that the behavior does not
|
|
// break.
|
|
class RTC_EXPORT FieldTrialsView {
|
|
public:
|
|
virtual ~FieldTrialsView() = default;
|
|
|
|
// Returns the configured value for `key` or an empty string if the field
|
|
// trial isn't configured.
|
|
virtual std::string Lookup(absl::string_view key) const = 0;
|
|
|
|
bool IsEnabled(absl::string_view key) const {
|
|
return Lookup(key).find("Enabled") == 0;
|
|
}
|
|
|
|
bool IsDisabled(absl::string_view key) const {
|
|
return Lookup(key).find("Disabled") == 0;
|
|
}
|
|
};
|
|
|
|
// TODO(bugs.webrtc.org/10335): Remove once all migrated to
|
|
// api/field_trials_view.h
|
|
typedef FieldTrialsView WebRtcKeyValueConfig;
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // API_FIELD_TRIALS_VIEW_H_
|