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1 /* This Source Code Form is subject to the terms of the Mozilla Public |
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2 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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4 |
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5 #include "StartupTimeline.h" |
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6 #include "mozilla/Telemetry.h" |
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7 #include "mozilla/TimeStamp.h" |
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8 #include "nsXULAppAPI.h" |
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9 |
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10 namespace mozilla { |
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11 |
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12 TimeStamp StartupTimeline::sStartupTimeline[StartupTimeline::MAX_EVENT_ID]; |
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13 const char *StartupTimeline::sStartupTimelineDesc[StartupTimeline::MAX_EVENT_ID] = { |
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14 #define mozilla_StartupTimeline_Event(ev, desc) desc, |
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15 #include "StartupTimeline.h" |
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16 #undef mozilla_StartupTimeline_Event |
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17 }; |
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18 |
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19 /** |
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20 * Implementation of XRE_StartupTimelineRecord() |
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21 * |
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22 * @param aEvent Same as XRE_StartupTimelineRecord() equivalent argument |
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23 * @param aWhen Same as XRE_StartupTimelineRecord() equivalent argument |
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24 */ |
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25 void |
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26 StartupTimelineRecordExternal(int aEvent, uint64_t aWhen) |
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27 { |
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28 #if XP_WIN |
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29 TimeStamp ts = TimeStampValue(aWhen, 0, 0); |
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30 #else |
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31 TimeStamp ts = TimeStampValue(aWhen); |
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32 #endif |
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33 bool error = false; |
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34 |
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35 // Since the timestamp comes from an external source validate it before |
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36 // recording it and log a telemetry error if it appears inconsistent. |
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37 if (ts < TimeStamp::ProcessCreation(error)) { |
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38 Telemetry::Accumulate(Telemetry::STARTUP_MEASUREMENT_ERRORS, |
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39 (StartupTimeline::Event)aEvent); |
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40 } else { |
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41 StartupTimeline::Record((StartupTimeline::Event)aEvent, ts); |
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42 } |
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43 } |
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44 |
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45 } /* namespace mozilla */ |
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46 |
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47 /** |
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48 * The XRE_StartupTimeline_Record function is to be used by embedding |
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49 * applications that can't use mozilla::StartupTimeline::Record() directly. |
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50 * |
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51 * It can create timestamps from arbitrary time values and sanitizies them to |
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52 * ensure that they are not inconsistent with those captured using monotonic |
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53 * timers. The value of aWhen must have been captured using the same timer |
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54 * used by the platform's mozilla::TimeStamp implementation. Erroneous values |
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55 * will be flagged as telemetry errors. |
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56 * |
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57 * @param aEvent The event to be recorded, must correspond to an element of the |
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58 * mozilla::StartupTimeline::Event enumartion |
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59 * @param aWhen The time at which the event happened, must have been recorded |
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60 * using the same timer as the platform's mozilla::TimeStamp |
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61 * implementation |
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62 */ |
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63 void |
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64 XRE_StartupTimelineRecord(int aEvent, PRTime aWhen) |
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65 { |
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66 mozilla::StartupTimelineRecordExternal(aEvent, aWhen); |
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67 } |