2010/8/25 Mulyadi Santosa <[email protected]>: > Hi :) > > On Wed, Aug 25, 2010 at 00:11, Parmenides <[email protected]> wrote: >> AFAIK, there is no a status which indicates a process paused. How does >> kernel deal with a paused process? Or, any other ways to implement a >> paused process? >> > > Please don't do top posting :)
I am so sorry to do that owing to not getting some net etiquettes. Just now, I have gooled the "top posting" item and learn some disadvantages about it. :-) > > Status? Uhm..have you check top or ps? in ps, IIRC, it's marked as "T" Correct, I have checked it. > > > How does the kernel deal with stopped one? Not sure what you mean > here.... you mean how to kick them out of scheduler? simple, at the > earliest moment.....either they're going to be scheduled out....or > returning from interrupt handler etc, they're brought out of running > run queue into another (separate) queue. > > When you SIGCONT them, it will be brought into runqueue and marked as > "ready to run" :) Oh, The status of TASK_STOPPED is neglected by me. BTW, when stopped by a signal SIGTSTP caused by ^Z, whether a foreground process is ment to relinquish the controlling terminal? If so, how to do that? Moreover, how does the process grasp the terminal when going to foregound again? > > -- > regards, > > Mulyadi Santosa > Freelance Linux trainer and consultant > > blog: the-hydra.blogspot.com > training: mulyaditraining.blogspot.com > -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to [email protected] Please read the FAQ at http://kernelnewbies.org/FAQ
