1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_ASH_ARC_TRACING_ARC_CPU_EVENT_H_
#define CHROME_BROWSER_ASH_ARC_TRACING_ARC_CPU_EVENT_H_
#include <ostream>
#include <vector>
#include "base/values.h"
namespace arc {
// Keeps information about CPU event
struct ArcCpuEvent {
enum class Type {
kIdleIn = 0, // CPU is in idle state.
kIdleOut, // CPU is no longer in idle state.
kWakeUp, // Wake up with a task.
kActive, // Task is started on CPU.
};
ArcCpuEvent(uint64_t timestamp, Type type, uint32_t tid);
bool operator==(const ArcCpuEvent& other) const;
uint64_t timestamp;
Type type;
uint32_t tid;
};
using CpuEvents = std::vector<ArcCpuEvent>;
// Represents CPU events for all CPUs in the system. CPUs id is in the range
// 0..N and corresponds to the index in |AllCpuEvents|, N is CPU count - 1.
using AllCpuEvents = std::vector<CpuEvents>;
// Helper that adds CPU event into |cpu_events|. Returns true in case event was
// created and added or false if it breaks any constraint.
bool AddCpuEvent(CpuEvents* cpu_events,
uint64_t timestamp,
ArcCpuEvent::Type type,
uint32_t tid);
// Helper that adds next CPU event to |all_cpu_events|. If needed new entry
// |CpuEvents| is allocated for |cpu_id|. Returns true in case event was
// created and added or false if it breaks any constraint.
bool AddAllCpuEvent(AllCpuEvents* all_cpu_events,
uint32_t cpu_id,
uint64_t timestamp,
ArcCpuEvent::Type type,
uint32_t tid);
// Serializes CPU events into |base::Value::List|.
base::Value::List SerializeCpuEvents(const CpuEvents& cpu_events);
// Serializes all CPU events into |base::Value::List|.
base::Value::List SerializeAllCpuEvents(const AllCpuEvents& all_cpu_events);
// Loads CPU events from |base::Value::List|. Returns true in case CPU events
// were loaded successfully.
bool LoadCpuEvents(const base::Value* value, CpuEvents* cpu_events);
// Loads all CPU events from |base::Value::List|. Returns true in case CPU
// events were loaded successfully.
bool LoadAllCpuEvents(const base::Value* value, AllCpuEvents* all_cpu_events);
std::ostream& operator<<(std::ostream& os, ArcCpuEvent::Type event_type);
} // namespace arc
#endif // CHROME_BROWSER_ASH_ARC_TRACING_ARC_CPU_EVENT_H_
|
