c# - Communcate with object inside a Task -

i want know how or if required in case communicate object running inside task.

i have collection of processes, generic objects perform long running monitoring , calculating:

private ienumerable<iservice> _services; 

since based on common interface implement method "dosomework". arguments sakes lets call method dowork.

i want these methods run in separate task space , not block sequentially, spinning task list @ similar scope level run part of program.

private list<task> processtask = new list<task>(); private cancellationtokensource tokensource = new cancellationtokensource(); private cancellationtoken token;  private void startall() {     token = tokensource.token;     processtask = _services.select(service => task.factory.startnew(     () => startservice(service),     token,      taskcreationoptions.longrunning,     taskscheduler.current)).tolist(); } 

the startservice method starts monitoring , work on individual item:

private void startservice(iservice plugin) {    ...    ...    plugin.dowork();    ...    ... } 

the services have method "stop" , "continue", leads question. in heart of using tasks best trying find way of influencing service withing task using event or delegate , pausing/stopping task or calling these methods on item external _services collection?

e.g.:

_services.foreach(item => item.stop()); 

if former how raise event inside task out side, or should monitor external flag?

many in advance.

you can use cancellationtoken one-shot event:

token.register(() => item.stop()) 

hopefully, work particular "service" api. note, token can fire before service starts , after done.