On Thu, Oct 22, 2009 at 2:17 AM, Bob Beers <bob.beers@xxxxxxxxx> wrote:
> On Wed, Oct 21, 2009 at 3:07 PM, Leonidas . <leonidas137@xxxxxxxxx> wrote:
>> On Thu, Oct 22, 2009 at 12:26 AM, Leonidas . <leonidas137@xxxxxxxxx> wrote:
>>> What would be an ideal way to check if a process/thread is running or sleeping
>>> or it is dead from kernel space?
>>>
>>> Basically, check whether a process is alive, then determine its status.
>>>
>>> -Leo.
>>>
>>
>> E.g. My module wants to do some cleanup after a thread exits after calling
>> pthread_exit(). The only way my module can know about it by looking in to list
>> of processes but this is not a foolproof since the pid can be recycled.
>>
>>
>> -Leo.
>>
>
> Hi Leo,
>
> I never did this, but I found it on the internets, so it must be ok ...
>
> <quote>
> task_t *p;
> read_lock(&tasklist_lock);
> for_each_process(p) {
> if ( strcmp (p->comm, $your-daemon-name) == 0)
> break;
> }
> read_unlock(&tasklist_lock);
>
> sounds not a good idea. Smile
> </quote>
>
> But, maybe it gives you some ideas?
>
> -bob
>
Hi Bob,
Actaully, I was thinking about something on these lines, like you, I
was not very convinced with
this though. Can you fwd me the link?
-Leo.
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