SynchronizationContextScheduler.cs System::Threading::Tasks::SynchronizationContextScheduler System System::Threading System::Threading::Tasks // //SynchronizationContextScheduler.cs // //Author: //Jérémie"Garuma"Laval<jeremie.laval@gmail.com> // //Copyright(c)2011Novell // //Permissionisherebygranted,freeofcharge,toanypersonobtainingacopy //ofthissoftwareandassociateddocumentationfiles(the"Software"),todeal //intheSoftwarewithoutrestriction,includingwithoutlimitationtherights //touse,copy,modify,merge,publish,distribute,sublicense,and/orsell //copiesoftheSoftware,andtopermitpersonstowhomtheSoftwareis //furnishedtodoso,subjecttothefollowingconditions: // //Theabovecopyrightnoticeandthispermissionnoticeshallbeincludedin //allcopiesorsubstantialportionsoftheSoftware. // //THESOFTWAREISPROVIDED"ASIS",WITHOUTWARRANTYOFANYKIND,EXPRESSOR //IMPLIED,INCLUDINGBUTNOTLIMITEDTOTHEWARRANTIESOFMERCHANTABILITY, //FITNESSFORAPARTICULARPURPOSEANDNONINFRINGEMENT.INNOEVENTSHALLTHE //AUTHORSORCOPYRIGHTHOLDERSBELIABLEFORANYCLAIM,DAMAGESOROTHER //LIABILITY,WHETHERINANACTIONOFCONTRACT,TORTOROTHERWISE,ARISINGFROM, //OUTOFORINCONNECTIONWITHTHESOFTWAREORTHEUSEOROTHERDEALINGSIN //THESOFTWARE. #ifNET_4_0||UNITY_5_3_OR_NEWER usingSystem; usingSystem.Threading; namespaceSystem.Threading.Tasks { sealedclassSynchronizationContextScheduler:TaskScheduler { readonlySynchronizationContextctx; readonlySendOrPostCallbackcallback; publicSynchronizationContextScheduler(SynchronizationContextctx) { this.ctx=ctx; this.callback=TaskLaunchWrapper; } protectedinternaloverridevoidQueueTask(Tasktask) { ctx.Post(callback,task); } voidTaskLaunchWrapper(objectobj) { TryExecuteTask((Task)obj); } protectedoverrideSystem.Collections.Generic.IEnumerable<Task>GetScheduledTasks() { thrownewSystem.NotImplementedException(); } protectedinternaloverrideboolTryDequeue(Tasktask) { returnfalse; } protectedoverrideboolTryExecuteTaskInline(Tasktask,booltaskWasPreviouslyQueued) { ctx.Send(callback,task); returntrue; } publicoverrideintMaximumConcurrencyLevel{ get{ returnbase.MaximumConcurrencyLevel; } } } } #endif