Jeg er ikke i stand til at modtage besked om stikket i den igangværende proces, når dens venter på sit barn for at afslutte.

kode ser noget lignende nedenfor
/ / i en tråd af den nuværende proces
/ / tråd 1

\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u0
int numBytes \u003d Read (sockid, buf, SIZE); / / Nu tråden er blokeret
\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u0


/ / i en anden tråd
/ / tråd 2

\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u0
hvis ((pid \u003d fork ()) \u003d\u003d 0) / / barn proces
(
exec (...);
)
anden
(
waitpid (PID); / / nu er spærret for barnets exit
)
\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u0
I ovennævnte scenario, når barnet er fuldbyrdende og moderselskabet er blokeret for barnets udrejse, også når der er nogle besked tilgængelige på socket descrtiptor for første tråd at læse, er jeg ikke i stand til at læse, at selv efter barnets udrejse. så kunne nogen kaste mere lys over ovenstående scenario?

Thanks in advance
Swap007

Kan du ikke bruge ikke-blokerende læser eller vælg ()?

yaaa Jeg m bruger vælge opkald b4 gør læse om målertavle.
så koden er noget som dette

/ / tråd 1

\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d
int retval \u003d vælge (.....)// Nu tråden er blokeret, og det vil blive awaked whn noget er thr til læse fra sokkel.


if (retval \u003d\u003d -1)
domstol << "fejl" <<endl;
anden
int numBytes \u003d Read (sockid, buf, SIZE);
\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u0

er DIS bøde????