TaskActionInvoker.cs System System::Threading System::Threading::Tasks // //TaskActionInvoker.cs // //Authors: //MarekSafar<marek.safar@gmail.com> // //Copyright2011XamarinInc. // //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.Threading; namespaceSystem.Threading.Tasks { abstractclassTaskActionInvoker { publicstaticreadonlyTaskActionInvokerEmpty=newEmptyTaskActionInvoker(); publicstaticreadonlyTaskActionInvokerDelay=newDelayTaskInvoker(); sealedclassEmptyTaskActionInvoker:TaskActionInvoker { publicoverrideDelegateAction{ get{ returnnull; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { } } sealedclassActionInvoke:TaskActionInvoker { readonlyActionaction; publicActionInvoke(Actionaction) { this.action=action; } publicoverrideDelegateAction{ get{ returnaction; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { action(); } } sealedclassActionObjectInvoke:TaskActionInvoker { readonlyAction<object>action; publicActionObjectInvoke(Action<object>action) { this.action=action; } publicoverrideDelegateAction{ get{ returnaction; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { action(state); } } sealedclassActionTaskInvoke:TaskActionInvoker { readonlyAction<Task>action; publicActionTaskInvoke(Action<Task>action) { this.action=action; } publicoverrideDelegateAction{ get{ returnaction; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { action(owner); } } sealedclassActionTasksInvoke:TaskActionInvoker { readonlyAction<Task[]>action; readonlyTask[]tasks; publicActionTasksInvoke(Action<Task[]>action,Task[]tasks) { this.action=action; this.tasks=tasks; } publicoverrideDelegateAction{ get{ returnaction; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { owner.TrySetExceptionObserved(); action(tasks); } } sealedclassActionTaskObjectInvoke:TaskActionInvoker { readonlyAction<Task,object>action; publicActionTaskObjectInvoke(Action<Task,object>action) { this.action=action; } publicoverrideDelegateAction{ get{ returnaction; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { action(owner,state); } } sealedclassActionTaskObjectInvoke<TResult>:TaskActionInvoker { readonlyAction<Task<TResult>,object>action; publicActionTaskObjectInvoke(Action<Task<TResult>,object>action) { this.action=action; } publicoverrideDelegateAction{ get{ returnaction; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { action((Task<TResult>)owner,state); } } sealedclassActionTaskInvoke<TResult>:TaskActionInvoker { readonlyAction<Task<TResult>>action; publicActionTaskInvoke(Action<Task<TResult>>action) { this.action=action; } publicoverrideDelegateAction{ get{ returnaction; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { action((Task<TResult>)owner); } } sealedclassActionTaskSelected:TaskActionInvoker { readonlyAction<Task>action; publicActionTaskSelected(Action<Task>action) { this.action=action; } publicoverrideDelegateAction{ get{ returnaction; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { action(((Task<Task>)owner).Result); } } sealedclassFuncInvoke<TResult>:TaskActionInvoker { readonlyFunc<TResult>action; publicFuncInvoke(Func<TResult>action) { this.action=action; } publicoverrideDelegateAction{ get{ returnaction; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { ((Task<TResult>)context).Result=action(); } } sealedclassFuncTaskInvoke<TResult>:TaskActionInvoker { readonlyFunc<Task,TResult>action; publicFuncTaskInvoke(Func<Task,TResult>action) { this.action=action; } publicoverrideDelegateAction{ get{ returnaction; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { ((Task<TResult>)context).Result=action(owner); } } sealedclassFuncTasksInvoke<TResult>:TaskActionInvoker { readonlyFunc<Task[],TResult>action; readonlyTask[]tasks; publicFuncTasksInvoke(Func<Task[],TResult>action,Task[]tasks) { this.action=action; this.tasks=tasks; } publicoverrideDelegateAction{ get{ returnaction; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { owner.TrySetExceptionObserved(); ((Task<TResult>)context).Result=action(tasks); } } sealedclassFuncTaskSelected<TResult>:TaskActionInvoker { readonlyFunc<Task,TResult>action; readonlyTask[]tasks; publicFuncTaskSelected(Func<Task,TResult>action,Task[]tasks) { this.action=action; this.tasks=tasks; } publicoverrideDelegateAction{ get{ returnaction; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { varresult=((Task<int>)owner).Result; ((Task<TResult>)context).Result=action(tasks[result]); } } sealedclassFuncTaskInvoke<TResult,TNewResult>:TaskActionInvoker { readonlyFunc<Task<TResult>,TNewResult>action; publicFuncTaskInvoke(Func<Task<TResult>,TNewResult>action) { this.action=action; } publicoverrideDelegateAction{ get{ returnaction; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { ((Task<TNewResult>)context).Result=action((Task<TResult>)owner); } } sealedclassFuncObjectInvoke<TResult>:TaskActionInvoker { readonlyFunc<object,TResult>action; publicFuncObjectInvoke(Func<object,TResult>action) { this.action=action; } publicoverrideDelegateAction{ get{ returnaction; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { ((Task<TResult>)context).Result=action(state); } } sealedclassFuncTaskObjectInvoke<TResult>:TaskActionInvoker { readonlyFunc<Task,object,TResult>action; publicFuncTaskObjectInvoke(Func<Task,object,TResult>action) { this.action=action; } publicoverrideDelegateAction{ get{ returnaction; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { ((Task<TResult>)context).Result=action(owner,state); } } sealedclassFuncTaskObjectInvoke<TResult,TNewResult>:TaskActionInvoker { readonlyFunc<Task<TResult>,object,TNewResult>action; publicFuncTaskObjectInvoke(Func<Task<TResult>,object,TNewResult>action) { this.action=action; } publicoverrideDelegateAction{ get{ returnaction; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { ((Task<TNewResult>)context).Result=action((Task<TResult>)owner,state); } } sealedclassDelayTaskInvoker:TaskActionInvoker { publicoverrideDelegateAction{ get{ returnnull; } } publicoverridevoidInvoke(Taskowner,objectstate,Taskcontext) { varmre=newManualResetEventSlim(); inttimeout=(int)state; mre.Wait(timeout,context.CancellationToken); } } publicstaticTaskActionInvokerCreate(Actionaction) { returnnewActionInvoke(action); } publicstaticTaskActionInvokerCreate(Action<object>action) { returnnewActionObjectInvoke(action); } publicstaticTaskActionInvokerCreate(Action<Task>action) { returnnewActionTaskInvoke(action); } publicstaticTaskActionInvokerCreate(Action<Task,object>action) { returnnewActionTaskObjectInvoke(action); } publicstaticTaskActionInvokerCreate<TResult>(Action<Task<TResult>>action) { returnnewActionTaskInvoke<TResult>(action); } publicstaticTaskActionInvokerCreate<TResult>(Action<Task<TResult>,object>action) { returnnewActionTaskObjectInvoke<TResult>(action); } publicstaticTaskActionInvokerCreate<TResult>(Func<TResult>action) { returnnewFuncInvoke<TResult>(action); } publicstaticTaskActionInvokerCreate<TResult>(Func<object,TResult>action) { returnnewFuncObjectInvoke<TResult>(action); } publicstaticTaskActionInvokerCreate<TResult>(Func<Task,TResult>action) { returnnewFuncTaskInvoke<TResult>(action); } publicstaticTaskActionInvokerCreate<TResult>(Func<Task,object,TResult>action) { returnnewFuncTaskObjectInvoke<TResult>(action); } publicstaticTaskActionInvokerCreate<TResult,TNewResult>(Func<Task<TResult>,TNewResult>action) { returnnewFuncTaskInvoke<TResult,TNewResult>(action); } publicstaticTaskActionInvokerCreate<TResult,TNewResult>(Func<Task<TResult>,object,TNewResult>action) { returnnewFuncTaskObjectInvoke<TResult,TNewResult>(action); } #regionUsedbyContinueWhenAll publicstaticTaskActionInvokerCreate(Action<Task[]>action,Task[]tasks) { returnnewActionTasksInvoke(action,tasks); } publicstaticTaskActionInvokerCreate<TResult>(Func<Task[],TResult>action,Task[]tasks) { returnnewFuncTasksInvoke<TResult>(action,tasks); } #endregion #regionUsedbyContinueWhenAny publicstaticTaskActionInvokerCreateSelected(Action<Task>action) { returnnewActionTaskSelected(action); } publicstaticTaskActionInvokerCreate<TResult>(Func<Task,TResult>action,Task[]tasks) { returnnewFuncTaskSelected<TResult>(action,tasks); } #endregion publicabstractDelegateAction{get;} publicabstractvoidInvoke(Taskowner,objectstate,Taskcontext); } } #endif