Rechercher une page de manuel
SP_poll
Langue: en
Version: JULY 1998 (debian - 07/07/09)
Section: 3 (Bibliothèques de fonctions)
NAME
SP_poll - checks amount of data ready to be readSYNOPSIS
#include <sp.h>int SP_poll( mailbox mbox);
DESCRIPTION
SP_poll is a way to poll a mailbox to see if any messages are available for receiving. The value returned will be < 0 if error, 0 if nothing is available, and the number of bytes waiting if something is there.RETURN VALUES
Returns 0 if nothing is available or the number of bytes available, or one of the following errors ( < 0 ):- ILLEGAL_SESSION
- The session specified by mbox is illegal. Usually because it is not active.
BUGS
None.AUTHOR
Yair Amir <yairamir@cnds.jhu.edu>Jonathan Stanton <jonathan@cnds.jhu.edu>
Commedia Project <commedia@cnds.jhu.edu>
SEE ALSO
libsp(3)Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre