gistfile1.rs

fn deschedule_running_task_and_then_inner(~self, fn(&mut Scheduler, Task)); // does not BlockedTask::try_block() the task

fn deschedule_running_task_and_then(~self, user_blk: fn(&mut Scheduler, BlockedTask) {
    do self.deschedule_running_task_and_then_inner |sched, task| {
        // remove this logic from fn run_cleanup_job() now that it will be here
        match BlockedTask::try_block(task) {
            Left(killed_task) => sched.enqueue_task(killed_task),
            Right(blocked_task) => user_blk(sched, blocked_task),
        }
    }
}