Hi,all,
I wrote a simple listening socket program.The father forks the two child
progresses.One is reporting the status of the system;the other is dealing
with the network service --just dealing with the client requirement through
the network. I use the signal function to deal with the child progress. But
when it run,it creates too many zombie progresses.I don't what's the
problem. Could anyone give me a hand? the below is my code:
void sig_chld(int sig)
{
pid_t pid;
int stat
while((pid=waitpid(-1,&stat,WNOHANG)) >0);
return;
}
main ()
{
...
signal(SIGCHLD,&sig_chld);/*dealing the child progress*/
if (!fork()){
/* Reading the status of the system*/
}
while(1)
{
sin_size = sizeof(struct sockaddr_in);
new_fd=accept(sock_fd,(struct sockaddr *)&their_addr,&sin_size));
if (!fork()) {
/*the child progress deals with the network requirment
...
*/
close(new_fd);
exit(0);
}
else
{
}
}
close(sock_fd);
exit(0);
}
Thanks in advance!
Lichow
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