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RJS-2852: Adding a
CallInvoker-based scheduler for Core on React Na…
…tive (#6791) * Removing the FlushMicrotaskQueueGuard and flush_ui_workaround * Adding a ReactScheduler * Rename injectCallInvoker → createScheduler * Updating comments * Ran formatting * Incorporated feedback and clarified the need for the shared_ptr * Make watchman ignore .wireit dirs * Updated package.lock * Updating comments * Adding a note to the changelog * Simplified capture for lambda passed to invokeAsync
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| //////////////////////////////////////////////////////////////////////////// | ||
| // | ||
| // Copyright 2024 Realm Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
| //////////////////////////////////////////////////////////////////////////// | ||
|
|
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| #include "react_scheduler.h" | ||
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| #include <realm/object-store/util/scheduler.hpp> | ||
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| #include <ReactCommon/CallInvoker.h> | ||
| #include <ReactCommon/SchedulerPriority.h> | ||
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| #include <thread> | ||
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| using Scheduler = realm::util::Scheduler; | ||
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| namespace { | ||
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| std::shared_ptr<Scheduler> scheduler_{}; | ||
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| class ReactScheduler : public realm::util::Scheduler { | ||
| public: | ||
| ReactScheduler(std::shared_ptr<facebook::react::CallInvoker> js_call_invoker) | ||
| : m_js_call_invoker(js_call_invoker) | ||
| { | ||
| } | ||
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| bool is_on_thread() const noexcept override | ||
| { | ||
| return m_id == std::this_thread::get_id(); | ||
| } | ||
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| bool is_same_as(const Scheduler* other) const noexcept override | ||
| { | ||
| auto o = dynamic_cast<const ReactScheduler*>(other); | ||
| return (o && (o->m_js_call_invoker == m_js_call_invoker)); | ||
| } | ||
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| bool can_invoke() const noexcept override | ||
| { | ||
| return true; | ||
| } | ||
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| void invoke(realm::util::UniqueFunction<void()>&& func) override | ||
| { | ||
| m_js_call_invoker->invokeAsync( | ||
| // Using normal priority to avoid blocking rendering, user-input and other higher priority tasks | ||
| facebook::react::SchedulerPriority::NormalPriority, [ptr = func.release()] { | ||
| (realm::util::UniqueFunction<void()>(ptr))(); | ||
| }); | ||
| } | ||
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| private: | ||
| std::shared_ptr<facebook::react::CallInvoker> m_js_call_invoker; | ||
| std::thread::id m_id = std::this_thread::get_id(); | ||
| }; | ||
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| std::shared_ptr<Scheduler> get_scheduler() | ||
| { | ||
| if (scheduler_) { | ||
| REALM_ASSERT(scheduler_->is_on_thread()); | ||
| return scheduler_; | ||
| } | ||
| else { | ||
| return Scheduler::make_platform_default(); | ||
| } | ||
| } | ||
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| } // namespace | ||
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| namespace realm::js::react_scheduler { | ||
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| void create_scheduler(std::shared_ptr<facebook::react::CallInvoker> js_call_invoker) | ||
| { | ||
| scheduler_ = std::make_shared<ReactScheduler>(js_call_invoker); | ||
| Scheduler::set_default_factory(get_scheduler); | ||
| } | ||
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| void reset_scheduler() | ||
| { | ||
| scheduler_.reset(); | ||
| } | ||
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| } // namespace realm::js::react_scheduler |
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