4f7bf4eaac
This class and its subclasses will be used in the future to drive the collection of power metrics in Chrome. Bug: 1248057 Change-Id: Ie0b0c7ef9d29ebb56a6962847f4e321559d773b1 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3319536 Reviewed-by: Etienne Pierre-Doray <etiennep@chromium.org> Commit-Queue: Patrick Monette <pmonette@chromium.org> Cr-Commit-Position: refs/heads/main@{#950286}
27 lines
842 B
C++
27 lines
842 B
C++
// Copyright 2021 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef COMPONENTS_POWER_METRICS_SAMPLING_EVENT_SOURCE_H_
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#define COMPONENTS_POWER_METRICS_SAMPLING_EVENT_SOURCE_H_
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#include "base/callback_forward.h"
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namespace power_sampler {
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// Invokes a callback when a Sample should be requested from all Samplers.
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class SamplingEventSource {
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public:
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using SamplingEventCallback = base::RepeatingClosure;
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virtual ~SamplingEventSource() = 0;
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// Starts generating sampling events. Returns whether the operation succeeded.
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// |callback| is invoked for every sampling event.
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virtual bool Start(SamplingEventCallback callback) = 0;
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};
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} // namespace power_sampler
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#endif // COMPONENTS_POWER_METRICS_SAMPLING_EVENT_SOURCE_H_
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