david wrote:
>
> Hello,
>
> Is it posssible to reuse the "struct fd_set" in the call to
> select() ?
> ie :
> - call FD_SET( ) one time for each fd
> - call select() several times with the same "fd_set"
>
> thanks in advance for your help
No.
The fd_set you get back from select() is only set on the
readable/writable/excepted file descriptors.
What you should do instead is something like this:
fd_set fd_input, fd_input_test;
FD_SET(0, fd_input);
while(condition){
fd_input_test = fd_input;
select(FDSETSIZE, fd_input_test, NULL, NULL, NULL);
if(FD_ISSET(0, fd_input_test)
etc...
}
In other words, setup an fd_set how you want and keep "refilling" the
one you send to select().
In learning this issues (only last week!) I wrote myself a simple
irc-like server and client. Total source lines: about 200. I can send
it to anyone who is interested.
