STATHREAD在F＃异步工作流程

Question

考虑下面的代码片断：

let t1 = async { return process1() }
let t2 = async { return process2() }
let t3 = async { return windowsProcess() }

let execute =
    [ t1; t2; t3 ]
    |> Async.Parallel
    |> Async.RunSynchronously
    |> ignore

什么在windowsProcess需要STATHREAD的情况下怎么办？这可能与这种结构？

Answer 1

如果有与SyncrhonizationContext，例如一个特定的线程UI线程，那么你可以做e.g。

// earlier on the UI thread...
let syncCtxt = System.Threading.SynchronizationContext.Current 

// then define t3 as
let t3 = async { 
    do! Async.SwitchToGuiThread(syncCtxt)
    // now we're running on the UI thread until the next async 'bind' point
    return windowsProcess() 
    }

但一般并行任务将在线程池启动。