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1c8103d4db
This new class implements the existing FieldTrialsView interface, extending it with the verification functionality. For now, the verification will only be performed if the rtc_strict_field_trials GN arg is set. Most classes extending FieldTrialsView today have been converted to extend from FieldTrialsRegistry instead to automatically perform verification. Bug: webrtc:14154 Change-Id: I4819724cd66a04507e62fcc2bb1019187b6ba8c7 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/276270 Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Commit-Queue: Emil Lundmark <lndmrk@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#38453}
49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
/*
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* Copyright 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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#ifndef API_FIELD_TRIALS_VIEW_H_
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#define API_FIELD_TRIALS_VIEW_H_
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#include <string>
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#include "absl/strings/string_view.h"
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#include "rtc_base/system/rtc_export.h"
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namespace webrtc {
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// An interface that provides the means to access field trials.
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//
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// Note that there are no guarantess that the meaning of a particular key-value
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// mapping will be preserved over time and no announcements will be made if they
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// are changed. It's up to the library user to ensure that the behavior does not
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// break.
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class RTC_EXPORT FieldTrialsView {
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public:
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virtual ~FieldTrialsView() = default;
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// Returns the configured value for `key` or an empty string if the field
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// trial isn't configured.
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virtual std::string Lookup(absl::string_view key) const = 0;
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bool IsEnabled(absl::string_view key) const {
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return Lookup(key).find("Enabled") == 0;
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}
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bool IsDisabled(absl::string_view key) const {
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return Lookup(key).find("Disabled") == 0;
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}
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};
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// TODO(bugs.webrtc.org/10335): Remove once all migrated to
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// api/field_trials_view.h
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typedef FieldTrialsView WebRtcKeyValueConfig;
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} // namespace webrtc
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#endif // API_FIELD_TRIALS_VIEW_H_
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