A Brief History of UniRx/UniTask, IUniTaskSource in Depth
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The document discusses the architecture of UniTask in C#, including the IUniTaskSource interface and AsyncUniTask class. IUniTaskSource defines methods for getting task results and status and handling completions. AsyncUniTask implements IUniTaskSource and manages a state machine and task pool for asynchronous operations. It retrieves tasks from the pool if available or creates new ones, and returns tasks to the pool after completion.
A Brief History of UniRx/UniTask, IUniTaskSource in Depth
- 2. 河合 宜文 / Kawai Yoshifumi / @neuecc Cysharp, Inc. Cygames C#大統一理論 C#
- 4. A Brief History of UniRx/UniTask
- 9. public readonly struct UniTask<T> { readonly T result; readonly IUniTaskSource<T> source; readonly short token; }
- 10. public readonly struct UniTask<T> { readonly T result; readonly IUniTaskSource<T> source; readonly short token; }
- 11. public readonly struct UniTask<T> { readonly T result; readonly IUniTaskSource<T> source; readonly short token; }
- 12. public interface IUniTaskSource<out T> { T GetResult(short token); UniTaskStatus GetStatus(short token); void OnCompleted(Action<object> continuation, object state, short token); }
- 13. internal sealed class AsyncUniTask<TStateMachine, T> : IStateMachineRunnerPromise<T>, ITaskPoolNode<AsyncUniTask<TStateMachine, T>>, IUniTaskSource<T> where TStateMachine : IAsyncStateMachine { public static void SetStateMachine(ref TStateMachine stateMachine, ref IStateMachineRunnerPro { // プールから取得する if (!pool.TryPop(out var result)) { result = new AsyncUniTask<TStateMachine, T>(); } } public T GetResult(short token) { try { return core.GetResult(token); } finally { core.Reset(); // core.version++ return pool.TryPush(this); // プールに返す} } }
- 14. internal sealed class AsyncUniTask<TStateMachine, T> : IStateMachineRunnerPromise<T>, ITaskPoolNode<AsyncUniTask<TStateMachine, T>>, IUniTaskSource<T> where TStateMachine : IAsyncStateMachine { public static void SetStateMachine(ref TStateMachine stateMachine, ref IStateMachineRunnerPro { // プールから取得する if (!pool.TryPop(out var result)) { result = new AsyncUniTask<TStateMachine, T>(); } } public T GetResult(short token) { try { return core.GetResult(token); } finally { core.Reset(); // core.version++ return pool.TryPush(this); // プールに返す} } }
- 15. public interface IUniTaskSource<out T> { T GetResult(short token); UniTaskStatus GetStatus(short token); void OnCompleted(Action<object> continuation, object state, short token); } public readonly struct UniTask<T> { readonly T result; readonly IUniTaskSource<T> source; readonly short token; }
- 16. public interface IUniTaskSource<out T> { T GetResult(short token); UniTaskStatus GetStatus(short token); void OnCompleted(Action<object> continuation, object state, short token); } public readonly struct UniTask<T> { readonly T result; readonly IUniTaskSource<T> source; readonly short token; }
- 17. public interface IUniTaskSource<out T> { T GetResult(short token); UniTaskStatus GetStatus(short token); void OnCompleted(Action<object> continuation, object state, short token); } public readonly struct UniTask<T> { readonly T result; readonly IUniTaskSource<T> source; readonly short token; } if (token != version) { throw new InvalidOperationException( "Token version is not matched, can not await twice or get Status after await.“ ); }
- 18. sealed class DelayPromise : IUniTaskSource, IPlayerLoopItem, ITaskPoolNode<DelayPromise>