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68 lines
2.3 KiB
C++
68 lines
2.3 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "StartupTimeline.h"
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#include "mozilla/Telemetry.h"
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#include "mozilla/TimeStamp.h"
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#include "nsXULAppAPI.h"
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namespace mozilla {
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TimeStamp StartupTimeline::sStartupTimeline[StartupTimeline::MAX_EVENT_ID];
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const char *StartupTimeline::sStartupTimelineDesc[StartupTimeline::MAX_EVENT_ID] = {
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#define mozilla_StartupTimeline_Event(ev, desc) desc,
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#include "StartupTimeline.h"
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#undef mozilla_StartupTimeline_Event
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};
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/**
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* Implementation of XRE_StartupTimelineRecord()
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*
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* @param aEvent Same as XRE_StartupTimelineRecord() equivalent argument
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* @param aWhen Same as XRE_StartupTimelineRecord() equivalent argument
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*/
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void
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StartupTimelineRecordExternal(int aEvent, uint64_t aWhen)
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{
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#if XP_WIN
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TimeStamp ts = TimeStampValue(aWhen, 0, 0);
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#else
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TimeStamp ts = TimeStampValue(aWhen);
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#endif
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bool error = false;
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// Since the timestamp comes from an external source validate it before
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// recording it and log a telemetry error if it appears inconsistent.
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if (ts < TimeStamp::ProcessCreation(error)) {
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Telemetry::Accumulate(Telemetry::STARTUP_MEASUREMENT_ERRORS,
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(StartupTimeline::Event)aEvent);
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} else {
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StartupTimeline::Record((StartupTimeline::Event)aEvent, ts);
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}
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}
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} /* namespace mozilla */
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/**
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* The XRE_StartupTimeline_Record function is to be used by embedding
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* applications that can't use mozilla::StartupTimeline::Record() directly.
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*
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* It can create timestamps from arbitrary time values and sanitizies them to
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* ensure that they are not inconsistent with those captured using monotonic
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* timers. The value of aWhen must have been captured using the same timer
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* used by the platform's mozilla::TimeStamp implementation. Erroneous values
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* will be flagged as telemetry errors.
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*
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* @param aEvent The event to be recorded, must correspond to an element of the
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* mozilla::StartupTimeline::Event enumartion
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* @param aWhen The time at which the event happened, must have been recorded
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* using the same timer as the platform's mozilla::TimeStamp
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* implementation
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*/
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void
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XRE_StartupTimelineRecord(int aEvent, PRTime aWhen)
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{
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mozilla::StartupTimelineRecordExternal(aEvent, aWhen);
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}
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