YieldAwaitable.cs System::Runtime::CompilerServices::YieldAwaitable System::Runtime::CompilerServices::YieldAwaitable::YieldAwaiter System System::Runtime System::Runtime::CompilerServices // //YieldAwaitable.cs // //Authors: //MarekSafar<marek.safar@gmail.com> // //Copyright(C)2011Novell,Inc(http://www.novell.com) //Copyright(C)2011Xamarin,Inc(http://www.xamarin.com) // //Permissionisherebygranted,freeofcharge,toanypersonobtaining //acopyofthissoftwareandassociateddocumentationfiles(the //"Software"),todealintheSoftwarewithoutrestriction,including //withoutlimitationtherightstouse,copy,modify,merge,publish, //distribute,sublicense,and/orsellcopiesoftheSoftware,andto //permitpersonstowhomtheSoftwareisfurnishedtodoso,subjectto //thefollowingconditions: // //Theabovecopyrightnoticeandthispermissionnoticeshallbe //includedinallcopiesorsubstantialportionsoftheSoftware. // //THESOFTWAREISPROVIDED"ASIS",WITHOUTWARRANTYOFANYKIND,) //EXPRESSORIMPLIED,INCLUDINGBUTNOTLIMITEDTOTHEWARRANTIESOF //MERCHANTABILITY,FITNESSFORAPARTICULARPURPOSEAND //NONINFRINGEMENT.INNOEVENTSHALLTHEAUTHORSORCOPYRIGHTHOLDERSBE //LIABLEFORANYCLAIM,DAMAGESOROTHERLIABILITY,WHETHERINANACTION //OFCONTRACT,TORTOROTHERWISE,ARISINGFROM,OUTOFORINCONNECTION //WITHTHESOFTWAREORTHEUSEOROTHERDEALINGSINTHESOFTWARE. // #ifNET_4_5||UNITY_5_3_OR_NEWER usingSystem.Threading; usingSystem.Threading.Tasks; namespaceSystem.Runtime.CompilerServices { publicstructYieldAwaitable { publicstructYieldAwaiter:ICriticalNotifyCompletion { publicboolIsCompleted{ get{ returnfalse; } } publicvoidOnCompleted(Actioncontinuation) { if(continuation==null) thrownewArgumentNullException("continuation"); if(TaskScheduler.Current==TaskScheduler.Default){ // //Passcontinuationasanargumenttoavoidallocating //hoistingclass // ThreadPool.QueueUserWorkItem(l=>((Action)l)(),continuation); }else{ newTask(continuation).Start(TaskScheduler.Current); } } publicvoidUnsafeOnCompleted(Actioncontinuation) { if(continuation==null) thrownewArgumentNullException("continuation"); if(TaskScheduler.Current==TaskScheduler.Default){ // //Passthecontinuationasanargumenttoavoidallocating //hoistingclass // //ThreadPool.UnsafeQueueUserWorkItem(l=>((Action)l)(),continuation); ThreadPool.QueueUserWorkItem(l=>((Action)l)(),continuation); }else{ newTask(continuation).Start(TaskScheduler.Current); } } publicvoidGetResult() { } } publicYieldAwaitable.YieldAwaiterGetAwaiter() { returnnewYieldAwaiter(); } } } #endif