forked from mirrors/gecko-dev
971d0cdf38
Previously the process startup timestamp was computed lazily but this caused some issues with some of our static analysis infra (see bug 1678152). This moves computing the timestamp early during process startup and makes it happen unconditionally. Differential Revision: https://phabricator.services.mozilla.com/D136406
55 lines
1.8 KiB
C++
55 lines
1.8 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*
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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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} /* namespace mozilla */
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using mozilla::StartupTimeline;
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using mozilla::TimeStamp;
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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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* @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
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*/
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void XRE_StartupTimelineRecord(int aEvent, TimeStamp aWhen) {
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StartupTimeline::Record((StartupTimeline::Event)aEvent, aWhen);
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}
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void StartupTimeline::RecordOnce(Event ev) { RecordOnce(ev, TimeStamp::Now()); }
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void StartupTimeline::RecordOnce(Event ev, const TimeStamp& aWhen) {
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if (HasRecord(ev)) {
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return;
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}
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Record(ev, aWhen);
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// Record first paint timestamp as a scalar.
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if (ev == FIRST_PAINT || ev == FIRST_PAINT2) {
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uint32_t firstPaintTime =
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(uint32_t)(aWhen - TimeStamp::ProcessCreation()).ToMilliseconds();
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Telemetry::ScalarSet(ev == FIRST_PAINT
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? Telemetry::ScalarID::TIMESTAMPS_FIRST_PAINT
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: Telemetry::ScalarID::TIMESTAMPS_FIRST_PAINT_TWO,
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firstPaintTime);
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}
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}
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