Mailinglist Archive: opensuse-programming (33 mails)

[Anders Johansson <andjoh@xxxxxxxxxx>]

Per Jessen wrote:
> Anders Johansson wrote:
> 
>> No, see "man dup". The file status flags are shared between the two,
>> so a change to one means both are affected. The file descriptor flags
>> are not.
> 
> Hmm.  Any suggestion on how to do nonblocking reads and blokcing writes
> on one socket?
> 
>> At what point do you do the GET_FL? I don't see it in the code you
>> sent
> 
> I think I removed it again.  I basically did a check just before
> fputs().  
> Something like this:
> 
> fcntl( fd, F_GETFL, &flag );
> if ( flag & O_NONBLOCK ) log_error("nonblocking when it shudnt be");

by the way, this isn't a valid call. flag doesn't get modified by this.
Correct would be

flag=fcntl(fd, F_GETFL);