[NTLUG:Discuss] serial communications

[Burton M. Strauss III]

Pretty much what it sounds like ...

Blocking I/O means that the user process is blocked (stopped) until the I/O
completes.

Non-Blocking I/O means that the user process can continue while the I/O is
actually going on.  It's then your responsibility to check later on to make
sure it works.

Think of it like calling me (Blocking) vs. sending eMail (non-Blocking).

-----Burton


> -----Original Message-----
> From: discuss-bounces at ntlug.org [mailto:discuss-bounces at ntlug.org]On
> Behalf Of james osburn
> Sent: Monday, November 08, 2004 11:27 AM
> To: discuss at ntlug.org
> Subject: [NTLUG:Discuss] serial communications
>
>
> whas is difference between block and non blocking io ?
> jim