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
1.5 KiB
C++
59 lines
1.5 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 <functional>
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#include <mutex>
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#include <react/mounting/MountingTelemetry.h>
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#include <react/mounting/MountingTransaction.h>
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#include <react/mounting/MountingTransactionMetadata.h>
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namespace facebook {
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namespace react {
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class MountingCoordinator;
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/*
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* Provides convenient tools for aggregating and accessing telemetry data
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* associated with running Surface.
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*/
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class TelemetryController final {
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friend class MountingCoordinator;
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/*
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* To be used by `MountingCoordinator`.
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*/
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TelemetryController(MountingCoordinator const &mountingCoordinator) noexcept;
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/*
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* Not copyable.
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*/
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TelemetryController(TelemetryController const &other) noexcept = delete;
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TelemetryController &operator=(TelemetryController const &other) noexcept =
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delete;
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public:
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/*
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* Calls `MountingCoordinator::pullTransaction()` and aggregates telemetry.
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*/
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bool 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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private:
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MountingCoordinator const &mountingCoordinator_;
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mutable SurfaceTelemetry compoundTelemetry_{};
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mutable std::mutex mutex_;
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};
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} // namespace react
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} // namespace facebook
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