116 lines
3.0 KiB
C++
116 lines
3.0 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 <ReactCommon/RuntimeExecutor.h>
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#include <cstdint>
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#include <unordered_map>
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#include <vector>
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#include "PlatformTimerRegistry.h"
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namespace facebook::react {
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/*
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* A HostObject subclass representing the result of a setTimeout call.
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* Can be used as an argument to clearTimeout.
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*/
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class TimerHandle : public jsi::HostObject {
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public:
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explicit TimerHandle(uint32_t index) : index_(index) {}
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uint32_t index() const {
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return index_;
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}
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~TimerHandle() override = default;
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private:
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// Index in the timeouts_ map of the owning SetTimeoutQueue.
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uint32_t index_;
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};
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/*
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* Wraps a jsi::Function to make it copyable so we can pass it into a lambda.
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*/
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struct TimerCallback {
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TimerCallback(TimerCallback&&) = default;
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TimerCallback(
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jsi::Function callback,
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std::vector<jsi::Value> args,
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bool repeat)
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: callback_(std::move(callback)),
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args_(std::move(args)),
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repeat(repeat) {}
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void invoke(jsi::Runtime& runtime) {
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callback_.call(runtime, args_.data(), args_.size());
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}
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jsi::Function callback_;
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const std::vector<jsi::Value> args_;
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bool repeat;
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};
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class TimerManager {
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public:
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explicit TimerManager(
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std::unique_ptr<PlatformTimerRegistry> platformTimerRegistry) noexcept;
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void setRuntimeExecutor(RuntimeExecutor runtimeExecutor) noexcept;
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void callReactNativeMicrotasks(jsi::Runtime& runtime);
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void callTimer(uint32_t);
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void attachGlobals(jsi::Runtime& runtime);
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private:
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std::shared_ptr<TimerHandle> createReactNativeMicrotask(
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jsi::Function&& callback,
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std::vector<jsi::Value>&& args);
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void deleteReactNativeMicrotask(
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jsi::Runtime& runtime,
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std::shared_ptr<TimerHandle> handle);
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std::shared_ptr<TimerHandle> createTimer(
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jsi::Function&& callback,
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std::vector<jsi::Value>&& args,
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double delay);
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void deleteTimer(jsi::Runtime& runtime, std::shared_ptr<TimerHandle> handle);
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std::shared_ptr<TimerHandle> createRecurringTimer(
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jsi::Function&& callback,
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std::vector<jsi::Value>&& args,
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double delay);
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void deleteRecurringTimer(
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jsi::Runtime& runtime,
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std::shared_ptr<TimerHandle> handle);
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RuntimeExecutor runtimeExecutor_;
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std::unique_ptr<PlatformTimerRegistry> platformTimerRegistry_;
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// A map (id => callback func) of the currently active JS timers
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std::unordered_map<uint32_t, std::shared_ptr<TimerCallback>> timers_;
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// Each timeout that is registered on this queue gets a sequential id. This
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// is the global count from which those are assigned.
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uint64_t timerIndex_{0};
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// The React Native microtask queue is used to back public APIs including
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// `queueMicrotask`, `clearImmediate`, and `setImmediate` (which is used by
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// the Promise polyfill) when the JSVM microtask mechanism is not used.
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std::vector<uint32_t> reactNativeMicrotasksQueue_;
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};
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} // namespace facebook::react
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