mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
60f15d6b5d
Summary: Now we not only measure how many times we measured text but also measure how much time it takes. This way we can see which portion of the layout process is spent by layout itself (and measuring embedded components). Changelog: [Internal] Fabric-specific internal change. Reviewed By: mdvacca Differential Revision: D26827447 fbshipit-source-id: e0b09fcacc86aed50dd94b48458215adbb0a60ef
82 lines
2.2 KiB
C++
82 lines
2.2 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#pragma once
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#include <chrono>
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#include <cstdint>
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#include <react/utils/Telemetry.h>
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namespace facebook {
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namespace react {
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/*
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* Represents telemetry data associated with a particular revision of
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* `ShadowTree`.
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*/
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class TransactionTelemetry final {
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public:
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/*
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* Thread-local Telemetry instance
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*/
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static TransactionTelemetry *threadLocalTelemetry();
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void setAsThreadLocal();
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void unsetAsThreadLocal();
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/*
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* Signaling
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*/
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void willDiff();
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void didDiff();
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void willCommit();
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void didCommit();
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void willLayout();
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void willMeasureText();
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void didMeasureText();
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void didLayout();
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void willMount();
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void didMount();
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void setRevisionNumber(int revisionNumber);
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/*
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* Reading
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*/
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TelemetryTimePoint getDiffStartTime() const;
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TelemetryTimePoint getDiffEndTime() const;
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TelemetryTimePoint getLayoutStartTime() const;
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TelemetryTimePoint getLayoutEndTime() const;
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TelemetryTimePoint getCommitStartTime() const;
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TelemetryTimePoint getCommitEndTime() const;
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TelemetryTimePoint getMountStartTime() const;
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TelemetryTimePoint getMountEndTime() const;
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TelemetryDuration getTextMeasureTime() const;
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int getNumberOfTextMeasurements() const;
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int getRevisionNumber() const;
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private:
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TelemetryTimePoint diffStartTime_{kTelemetryUndefinedTimePoint};
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TelemetryTimePoint diffEndTime_{kTelemetryUndefinedTimePoint};
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TelemetryTimePoint commitStartTime_{kTelemetryUndefinedTimePoint};
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TelemetryTimePoint commitEndTime_{kTelemetryUndefinedTimePoint};
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TelemetryTimePoint layoutStartTime_{kTelemetryUndefinedTimePoint};
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TelemetryTimePoint layoutEndTime_{kTelemetryUndefinedTimePoint};
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TelemetryTimePoint mountStartTime_{kTelemetryUndefinedTimePoint};
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TelemetryTimePoint mountEndTime_{kTelemetryUndefinedTimePoint};
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TelemetryTimePoint lastTextMeasureStartTime_{kTelemetryUndefinedTimePoint};
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TelemetryDuration textMeasureTime_{0};
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int numberOfTextMeasurements_{0};
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int revisionNumber_{0};
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};
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} // namespace react
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} // namespace facebook
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