57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
/*
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* Copyright (c) Meta Platforms, Inc. and 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/renderer/mounting/MountingTransaction.h>
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#include <react/renderer/telemetry/TransactionTelemetry.h>
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namespace facebook::react {
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class MountingCoordinator;
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using MountingTransactionCallback =
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std::function<void(const MountingTransaction &transaction, const SurfaceTelemetry &surfaceTelemetry)>;
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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(const MountingCoordinator &mountingCoordinator) noexcept;
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/*
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* Not copyable.
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*/
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TelemetryController(const TelemetryController &other) noexcept = delete;
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TelemetryController &operator=(const TelemetryController &other) noexcept = 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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const MountingTransactionCallback &willMount,
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const MountingTransactionCallback &doMount,
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const MountingTransactionCallback &didMount) const;
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private:
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const MountingCoordinator &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 facebook::react
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