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base / power_monitor / sampling_event_source.h [blame]
// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_POWER_MONITOR_SAMPLING_EVENT_SOURCE_H_
#define BASE_POWER_MONITOR_SAMPLING_EVENT_SOURCE_H_
#include "base/base_export.h"
#include "base/functional/callback_forward.h"
namespace base {
// Invokes a callback when a Sample should be requested from all Samplers.
class BASE_EXPORT SamplingEventSource {
public:
using SamplingEventCallback = RepeatingClosure;
virtual ~SamplingEventSource() = 0;
// Starts generating sampling events. Returns whether the operation succeeded.
// |callback| is invoked for every sampling event.
virtual bool Start(SamplingEventCallback callback) = 0;
};
} // namespace base
#endif // BASE_POWER_MONITOR_SAMPLING_EVENT_SOURCE_H_