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UniTask
mirror of https://github.com/Cysharp/UniTask
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Add UniTask.RunOnThreadPool

pull/162/head
neuecc 2020-09-07 17:56:02 +09:00
parent 4955ed18f1
commit 35a893ad9e
3 changed files with 255 additions and 0 deletions
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2
.gitignore vendored
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@ -253,3 +253,5 @@ src/UniTask/UnityEngine.UI.Player.csproj
src/UniTask/DOTween.Modules.Player.csproj
src/UniTask/Assembly-CSharp.Player.csproj
src/UniTask/Unity.EditorCoroutines.Editor.csproj

20
README.md
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@ -780,6 +780,26 @@ public IEnumerator DelayIgnore() => UniTask.ToCoroutine(async () =>
UniTask itself's unit test is written by Unity Test Runner and [Cysharp/RuntimeUnitTestToolkit](https://github.com/Cysharp/RuntimeUnitTestToolkit) to check on CI and IL2CPP working.
ThreadPool limitation
---
Most UniTask methods run in a single thread (PlayerLoop), but only `UniTask.Run` and `UniTask.SwitchToThreadPool` run on a thread pool. If you use a thread pool, it won't work with WebGL and so on.
`UniTask.Run` will be deprecated in the future (marked with an Obsolete) and only `RunOnThreadPool` will be used. Also, if you use `UniTask.Run`, consider whether you can use `UniTask.Create` or `UniTask.Void`.
IEnumerator.ToUniTask limitation
---
You can convert coroutine(IEnumerator) to UniTask(or await directly) but has some limitations.
* `WaitForEndOfFrame`/`WaitForFixedUpdate` is not supported, used `yield return null` instead.
* Consuming loop timing is not same as StartCoroutine, it is used specified PlayerLoopTiming, and default's `PlayerLoopTiming.Update` is run before MonoBehaviour's Update and StartCoroutine's loop.
For UnityEditor
---
UniTask can run on Unity Edtitor like Editor Coroutine. However, there are some limitations.
* Delay, DelayFrame is not work correctly because can not get deltaTime in editor. Return the result of the await immediately; you can use `DelayType.Realtime` to wait for the right time.
* All PlayerLoopTiming run on timing, `EditorApplication.update`.
Compare with Standard Task API
---
UniTask has many standard Task-like APIs. This table shows what is the alternative apis.

233
src/UniTask/Assets/Plugins/UniTask/Runtime/UniTask.Run.cs
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@ -7,6 +7,10 @@ namespace Cysharp.Threading.Tasks
{
public partial struct UniTask
{
#region OBSOLETE_RUN
// Run is a confusing name, use only RunOnThreadPool in the future.
/// <summary>Run action on the threadPool and return to main thread if configureAwait = true.</summary>
public static async UniTask Run(Action action, bool configureAwait = true, CancellationToken cancellationToken = default)
{
@ -232,6 +236,235 @@ namespace Cysharp.Threading.Tasks
return result;
}
}
#endregion
/// <summary>Run action on the threadPool and return to main thread if configureAwait = true.</summary>
public static async UniTask RunOnThreadPool(Action action, bool configureAwait = true, CancellationToken cancellationToken = default)
{
cancellationToken.ThrowIfCancellationRequested();
await UniTask.SwitchToThreadPool();
cancellationToken.ThrowIfCancellationRequested();
if (configureAwait)
{
try
{
action();
}
finally
{
await UniTask.Yield();
}
}
else
{
action();
}
cancellationToken.ThrowIfCancellationRequested();
}
/// <summary>Run action on the threadPool and return to main thread if configureAwait = true.</summary>
public static async UniTask RunOnThreadPool(Action<object> action, object state, bool configureAwait = true, CancellationToken cancellationToken = default)
{
cancellationToken.ThrowIfCancellationRequested();
await UniTask.SwitchToThreadPool();
cancellationToken.ThrowIfCancellationRequested();
if (configureAwait)
{
try
{
action(state);
}
finally
{
await UniTask.Yield();
}
}
else
{
action(state);
}
cancellationToken.ThrowIfCancellationRequested();
}
/// <summary>Run action on the threadPool and return to main thread if configureAwait = true.</summary>
public static async UniTask RunOnThreadPool(Func<UniTask> action, bool configureAwait = true, CancellationToken cancellationToken = default)
{
cancellationToken.ThrowIfCancellationRequested();
await UniTask.SwitchToThreadPool();
cancellationToken.ThrowIfCancellationRequested();
if (configureAwait)
{
try
{
await action();
}
finally
{
await UniTask.Yield();
}
}
else
{
await action();
}
cancellationToken.ThrowIfCancellationRequested();
}
/// <summary>Run action on the threadPool and return to main thread if configureAwait = true.</summary>
public static async UniTask RunOnThreadPool(Func<object, UniTask> action, object state, bool configureAwait = true, CancellationToken cancellationToken = default)
{
cancellationToken.ThrowIfCancellationRequested();
await UniTask.SwitchToThreadPool();
cancellationToken.ThrowIfCancellationRequested();
if (configureAwait)
{
try
{
await action(state);
}
finally
{
await UniTask.Yield();
}
}
else
{
await action(state);
}
cancellationToken.ThrowIfCancellationRequested();
}
/// <summary>Run action on the threadPool and return to main thread if configureAwait = true.</summary>
public static async UniTask<T> RunOnThreadPool<T>(Func<T> func, bool configureAwait = true, CancellationToken cancellationToken = default)
{
cancellationToken.ThrowIfCancellationRequested();
await UniTask.SwitchToThreadPool();
cancellationToken.ThrowIfCancellationRequested();
if (configureAwait)
{
try
{
return func();
}
finally
{
await UniTask.Yield();
cancellationToken.ThrowIfCancellationRequested();
}
}
else
{
return func();
}
}
/// <summary>Run action on the threadPool and return to main thread if configureAwait = true.</summary>
public static async UniTask<T> RunOnThreadPool<T>(Func<UniTask<T>> func, bool configureAwait = true, CancellationToken cancellationToken = default)
{
cancellationToken.ThrowIfCancellationRequested();
await UniTask.SwitchToThreadPool();
cancellationToken.ThrowIfCancellationRequested();
if (configureAwait)
{
try
{
return await func();
}
finally
{
cancellationToken.ThrowIfCancellationRequested();
await UniTask.Yield();
cancellationToken.ThrowIfCancellationRequested();
}
}
else
{
var result = await func();
cancellationToken.ThrowIfCancellationRequested();
return result;
}
}
/// <summary>Run action on the threadPool and return to main thread if configureAwait = true.</summary>
public static async UniTask<T> RunOnThreadPool<T>(Func<object, T> func, object state, bool configureAwait = true, CancellationToken cancellationToken = default)
{
cancellationToken.ThrowIfCancellationRequested();
await UniTask.SwitchToThreadPool();
cancellationToken.ThrowIfCancellationRequested();
if (configureAwait)
{
try
{
return func(state);
}
finally
{
await UniTask.Yield();
cancellationToken.ThrowIfCancellationRequested();
}
}
else
{
return func(state);
}
}
/// <summary>Run action on the threadPool and return to main thread if configureAwait = true.</summary>
public static async UniTask<T> RunOnThreadPool<T>(Func<object, UniTask<T>> func, object state, bool configureAwait = true, CancellationToken cancellationToken = default)
{
cancellationToken.ThrowIfCancellationRequested();
await UniTask.SwitchToThreadPool();
cancellationToken.ThrowIfCancellationRequested();
if (configureAwait)
{
try
{
return await func(state);
}
finally
{
cancellationToken.ThrowIfCancellationRequested();
await UniTask.Yield();
cancellationToken.ThrowIfCancellationRequested();
}
}
else
{
var result = await func(state);
cancellationToken.ThrowIfCancellationRequested();
return result;
}
}
}
}