amis-rpc-design/node_modules/react-native/ReactCommon/react/renderer/telemetry/TransactionTelemetry.h
2023-10-07 19:42:30 +08:00

88 lines
2.3 KiB
C++

/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#pragma once
#include <chrono>
#include <cstdint>
#include <functional>
#include <react/utils/Telemetry.h>
namespace facebook {
namespace react {
/*
* Represents telemetry data associated with a particular revision of
* `ShadowTree`.
*/
class TransactionTelemetry final {
public:
/*
* Thread-local Telemetry instance
*/
static TransactionTelemetry *threadLocalTelemetry();
TransactionTelemetry();
TransactionTelemetry(std::function<TelemetryTimePoint()> now);
void setAsThreadLocal();
void unsetAsThreadLocal();
/*
* Signaling
*/
void willDiff();
void didDiff();
void willCommit();
void didCommit();
void willLayout();
void willMeasureText();
void didMeasureText();
void didLayout();
void willMount();
void didMount();
void setRevisionNumber(int revisionNumber);
/*
* Reading
*/
TelemetryTimePoint getDiffStartTime() const;
TelemetryTimePoint getDiffEndTime() const;
TelemetryTimePoint getLayoutStartTime() const;
TelemetryTimePoint getLayoutEndTime() const;
TelemetryTimePoint getCommitStartTime() const;
TelemetryTimePoint getCommitEndTime() const;
TelemetryTimePoint getMountStartTime() const;
TelemetryTimePoint getMountEndTime() const;
TelemetryDuration getTextMeasureTime() const;
int getNumberOfTextMeasurements() const;
int getRevisionNumber() const;
private:
TelemetryTimePoint diffStartTime_{kTelemetryUndefinedTimePoint};
TelemetryTimePoint diffEndTime_{kTelemetryUndefinedTimePoint};
TelemetryTimePoint commitStartTime_{kTelemetryUndefinedTimePoint};
TelemetryTimePoint commitEndTime_{kTelemetryUndefinedTimePoint};
TelemetryTimePoint layoutStartTime_{kTelemetryUndefinedTimePoint};
TelemetryTimePoint layoutEndTime_{kTelemetryUndefinedTimePoint};
TelemetryTimePoint mountStartTime_{kTelemetryUndefinedTimePoint};
TelemetryTimePoint mountEndTime_{kTelemetryUndefinedTimePoint};
TelemetryTimePoint lastTextMeasureStartTime_{kTelemetryUndefinedTimePoint};
TelemetryDuration textMeasureTime_{0};
int numberOfTextMeasurements_{0};
int revisionNumber_{0};
std::function<TelemetryTimePoint()> now_;
};
} // namespace react
} // namespace facebook