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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Next MinVersion: 2
module arc.mojom;
[Extensible]
enum BootType {
// This is used only for backward compatibility reasons and the value has to
// be 0.
UNKNOWN = 0,
// This is for the very first (opt-in) boot.
FIRST_BOOT = 1,
// This is for the first boot after Chrome OS update which also updates the
// ARC image.
FIRST_BOOT_AFTER_UPDATE = 2,
// This is for a regular boot.
REGULAR_BOOT = 3,
};
// Describes a boot progress event.
struct BootProgressEvent {
// Name of the boot progress event in Android. Currently there are
// 11 boot progress events found in Android source repository:
// system/core/logcat/event.logtags
// frameworks/base/services/core/java/com/android/server/am/
// EventLogTags.logtags
// frameworks/base/services/core/java/com/android/server/
// EventLogTags.logtags
string event;
// Timestamp of the event in uptime obtained in ARC. The uptime
// is from clock source MONOTONIC_CLOCK since Chrome OS boots up.
// Therefore, we need to calibrate the correct elapsed time of the
// event by comparing the uptime with the ARC start time from
// the same clock source MONOTONIC_CLOCK in session manager.
int64 uptimeMillis;
};
// Next method ID: 1
interface MetricsHost {
// Report boot progress events from ARC instance.
ReportBootProgress@0(array<BootProgressEvent> events,
[MinVersion=1] BootType boot_type);
};
// Next method ID: 1
interface MetricsInstance {
Init@0(MetricsHost host_ptr);
};
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