mirror of
https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Valentin Shergin
35f2cd26ae
Summary: This diff implements TelemetryController, a small tool that can be used to instrument mounting transactions. It abstracts the logic of merging telemetry data of multiple transactions in a thread-safe manner. Changelog: [Internal] Fabric-specific internal change. Reviewed By: sammy-SC Differential Revision: D22490580 fbshipit-source-id: 3f3425b88d38fddb555c1390fd8f1ff3ef1c475a
59 lines
1.6 KiB
C++
59 lines
1.6 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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#include "TelemetryController.h"
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#include <react/mounting/MountingCoordinator.h>
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namespace facebook {
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namespace react {
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TelemetryController::TelemetryController(
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MountingCoordinator const &mountingCoordinator) noexcept
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: mountingCoordinator_(mountingCoordinator) {}
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bool TelemetryController::pullTransaction(
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std::function<void(MountingTransactionMetadata metadata)> willMount,
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std::function<void(ShadowViewMutationList const &mutations)> doMount,
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std::function<void(MountingTransactionMetadata metadata)> didMount) const
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noexcept {
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auto optional = mountingCoordinator_.pullTransaction();
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if (!optional.has_value()) {
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return false;
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}
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auto transaction = std::move(*optional);
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auto surfaceId = transaction.getSurfaceId();
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auto number = transaction.getNumber();
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auto telemetry = transaction.getTelemetry();
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auto numberOfMutations = transaction.getMutations().size();
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mutex_.lock();
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auto compoundTelemetry = compoundTelemetry_;
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mutex_.unlock();
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willMount({surfaceId, number, telemetry, compoundTelemetry});
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telemetry.willMount();
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doMount(std::move(transaction.getMutations()));
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telemetry.didMount();
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compoundTelemetry.incorporate(telemetry, numberOfMutations);
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didMount({surfaceId, number, telemetry, compoundTelemetry});
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mutex_.lock();
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compoundTelemetry_ = compoundTelemetry;
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mutex_.unlock();
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return true;
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}
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} // namespace react
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} // namespace facebook
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