Ifachildasrequestedbypidhasalreadyexitedbythetimeofthecall(aso-called"zombie"process),thefunctionreturnsimmediately.Anysystemresourcesusedbythechildarefreed.Pleaseseeyoursystem'swaitpid
oruntilasignalisdeliveredwhoseactionistoterminatethecurrentprocessortocallasignalhandlingfunction.Ifachildhasalreadyexitedbythetimeofthecall(aso-called"zombie"process
0x107SOL_RAW=0xffSOL_SOCKET=0x1SOL_TCP=0x6SOL_X25=0x106SOMAXCONN=0x80SO_ACCEPTCONN=0x1eSO_ATTACH_FILTER=0x1aSO_BINDTODEVICE