On Mon, Feb 5, 2018 at 2:42 PM, Brent W. Baccala <cos...@freesoft.org>
wrote:
> On Mon, Feb 5, 2018 at 1:51 AM, Samuel Thibault <samuel.thiba...@gnu.org>
> wrote:
>
>> Hello,
>>
>> Brent W. Baccala, on lun. 05 févr. 2018 00:35:17 -0500, wrote:
>> > How do we know that the proc server knows about the task yet? It will
>> get a
>> > notification from the kernel that a new task has been created, but how
>> do we
>> > know that the notification has been processed yet?
>>
>> Isn't the notification synchronous ?
>
>
> I don't see how. The kernel just sends a mach_notify_new_task message,
> and there is no reply.
>
OK, I think I've figured this out. The proc server's task_find() function
will call add_tasks() if its hash lookup fails, and that function queries
the kernel's task list and adds tasks that it doesn't know about.
agape
brent
