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SubjectRe: SCO: "thread creation is about a thousand times faster than on native Linux"
Philipp Rumpf wrote:
> It might be worth it to make SIGSTOP / SIGCONT nest properly anyway. Would
> keeping a counter of the level of SIGSTOPs received violate any common
> standard / break any applications ?

POSIX 1003.1 wouldn't like this at all:

3.3.1.2, pg 73:
"Conversely, when SIGCONT is generated for a process, all pending stop
signals for that process shall be discarded."
3.3.1.2, pg 76:
"While a process is stopped, any additional signals that are sent to
the process shall not be delivered until the process is continued
[...]"

So no, SIGSTOP/SIGCONT can't nest.

- Werner

--
_________________________________________________________________________
/ Werner Almesberger, ICA, EPFL, CH werner.almesberger@ica.epfl.ch /
/_IN_N_032__Tel_+41_21_693_6621__Fax_+41_21_693_6610_____________________/
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