FiberSchedulerSynchronizationContext.cs SpicyPixel::Threading::FiberSchedulerSynchronizationContext SpicyPixel SpicyPixel::Threading /* Author:AaronOneal,http://aarononeal.info Copyright(c)2012SpicyPixel,http://spicypixel.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. */ usingSystem; usingSystem.Threading; namespaceSpicyPixel.Threading { publicclassFiberSchedulerSynchronizationContext:SynchronizationContext { FiberSchedulerscheduler; publicFiberSchedulerSynchronizationContext(FiberSchedulerscheduler) { this.scheduler=scheduler; } publicoverridevoidPost(SendOrPostCallbackd,objectstate) { //TheschedulermaychoosetoinlinethisifthePost //isexecutedfromtheschedulerthread. Fiber.Factory.StartNew(()=>{ d(state); },scheduler); } publicoverridevoidSend(SendOrPostCallbackd,objectstate) { //Forceinliningifthethreadsmatch. if(scheduler.SchedulerThread==Thread.CurrentThread) { d(state); return; } //FIXME:Thiscouldblockindefinitelyiftheschedulergoesdown //beforeexecutingthetask.Needanotherwaithandlehereor //betterapproach.MaybeaddaWaitHandletothefiberitselfor //addJoin(). //Thethreadsdon'tmatch,soqueuetheaction //andwaitforittocomplete. ManualResetEventwait=newManualResetEvent(false); varfiber=Fiber.Factory.StartNew(()=>{ try{ d(state); }finally{ wait.Set(); } },scheduler); wait.WaitOne(); fiber.ThrowIfCanceledOrFaulted(); } } }