This file is indexed.

/usr/include/thunderbird/mozilla/Telemetry.h is in thunderbird-dev 1:24.4.0+build1-0ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  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
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
/* -*-  Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef Telemetry_h__
#define Telemetry_h__

#include "mozilla/GuardObjects.h"
#include "mozilla/TimeStamp.h"
#include "mozilla/StartupTimeline.h"
#include "nsTArray.h"
#include "nsStringGlue.h"
#if defined(MOZ_ENABLE_PROFILER_SPS)
#include "shared-libraries.h"
#endif

namespace base {
  class Histogram;
}

namespace mozilla {
namespace Telemetry {

#include "TelemetryHistogramEnums.h"

enum TimerResolution {
  Millisecond,
  Microsecond
};

/**
 * Initialize the Telemetry service on the main thread at startup.
 */
void Init();

/**
 * Adds sample to a histogram defined in TelemetryHistograms.h
 *
 * @param id - histogram id
 * @param sample - value to record.
 */
void Accumulate(ID id, uint32_t sample);

/**
 * Adds time delta in milliseconds to a histogram defined in TelemetryHistograms.h
 *
 * @param id - histogram id
 * @param start - start time
 * @param end - end time
 */
void AccumulateTimeDelta(ID id, TimeStamp start, TimeStamp end = TimeStamp::Now());

/**
 * Return a raw Histogram for direct manipulation for users who can not use Accumulate().
 */
base::Histogram* GetHistogramById(ID id);

/**
 * Those wrappers are needed because the VS versions we use do not support free
 * functions with default template arguments.
 */
template<TimerResolution res>
struct AccumulateDelta_impl
{
  static void compute(ID id, TimeStamp start, TimeStamp end = TimeStamp::Now());
};

template<>
struct AccumulateDelta_impl<Millisecond>
{
  static void compute(ID id, TimeStamp start, TimeStamp end = TimeStamp::Now()) {
    Accumulate(id, static_cast<uint32_t>((end - start).ToMilliseconds()));
  }
};

template<>
struct AccumulateDelta_impl<Microsecond>
{
  static void compute(ID id, TimeStamp start, TimeStamp end = TimeStamp::Now()) {
    Accumulate(id, static_cast<uint32_t>((end - start).ToMicroseconds()));
  }
};


template<ID id, TimerResolution res = Millisecond>
class AutoTimer {
public:
  AutoTimer(TimeStamp aStart = TimeStamp::Now() MOZ_GUARD_OBJECT_NOTIFIER_PARAM)
     : start(aStart)
  {
    MOZ_GUARD_OBJECT_NOTIFIER_INIT;
  }

  ~AutoTimer() {
    AccumulateDelta_impl<res>::compute(id, start);
  }

private:
  const TimeStamp start;
  MOZ_DECL_USE_GUARD_OBJECT_NOTIFIER
};

template<ID id>
class AutoCounter {
public:
  AutoCounter(uint32_t counterStart = 0 MOZ_GUARD_OBJECT_NOTIFIER_PARAM)
    : counter(counterStart)
  {
    MOZ_GUARD_OBJECT_NOTIFIER_INIT;
  }

  ~AutoCounter() {
    Accumulate(id, counter);
  }

  // Prefix increment only, to encourage good habits.
  void operator++() {
    ++counter;
  }

  // Chaining doesn't make any sense, don't return anything.
  void operator+=(int increment) {
    counter += increment;
  }

private:
  uint32_t counter;
  MOZ_DECL_USE_GUARD_OBJECT_NOTIFIER
};

/**
 * Indicates whether Telemetry recording is turned on.  This is intended
 * to guard calls to Accumulate when the statistic being recorded is
 * expensive to compute.
 */
bool CanRecord();

/**
 * Records slow SQL statements for Telemetry reporting.
 *
 * @param statement - offending SQL statement to record
 * @param dbName - DB filename
 * @param delay - execution time in milliseconds
 */
void RecordSlowSQLStatement(const nsACString &statement,
                            const nsACString &dbName,
                            uint32_t delay);

/**
 * Thresholds for a statement to be considered slow, in milliseconds
 */
const uint32_t kSlowSQLThresholdForMainThread = 50;
const uint32_t kSlowSQLThresholdForHelperThreads = 100;

class ProcessedStack;

/**
 * Record the main thread's call stack after it hangs.
 *
 * @param duration - Approximate duration of main thread hang in seconds
 * @param callStack - Array of PCs from the hung call stack
 * @param moduleMap - Array of info about modules in memory (for symbolication)
 */
#if defined(MOZ_ENABLE_PROFILER_SPS)
void RecordChromeHang(uint32_t duration,
                      ProcessedStack &aStack);
#endif

/**
 * Record a failed attempt at locking the user's profile.
 *
 * @param aProfileDir The profile directory whose lock attempt failed
 */
void WriteFailedProfileLock(nsIFile* aProfileDir);

} // namespace Telemetry
} // namespace mozilla
#endif // Telemetry_h__