Arne Lie wrote: > Walter, > > thanks, this could be the trick yes, we will have a look at that one! > > /Arne > >> -----Original Message----- >> From: walter harms [mailto:wharms@xxxxxx] >> Sent: 12. oktober 2010 16:31 >> To: Arne Lie >> Cc: ppp Linux >> Subject: Re: Using PPPD pty option and script: controlling stdin buffer >> size? >> >> I am not sure if i understand you correctly, >> but can change the bufferhandling of stdio by setting the buffer size >> using setbuf() (man 3 setbuf) That only does something if you're reading through the stdio functions (e.g., fread(3C)), and not through the recommended section low-level read(2) function. Using stdio to read/write from the master side of a pty pair would be ... odd. If you're seeing unwanted buffering here, I think you'll need to modify either the kernel's pty subsystem or the PPP line discipline that it's using. I wouldn't recommend doing this, though. Buffering is generally a good thing. If your application doesn't do sufficient congestion control to avoid getting unacceptably stuck behind a long queue in the middle of the network, then I'd call that a bug in the application, rather than a problem with the network interface. -- James Carlson 42.703N 71.076W <carlsonj@xxxxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-ppp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
