NAME

       iom_add - add event to I/O multiplexer

SYNTAX

       #include <libowfat/io.h>

       int iom_add(iomux_t* c, int64 fd, unsigned int events);

DESCRIPTION

       iom_add adds an event you are interested in to an I/O multiplexer.

       fd  is  the  file  descriptor  (usually a socket) you are interested in, and events is the
       operation you want to do. It can be IOM_READ or IOM_WRITE.

       If that operation becomes possible on that descriptor, and some thread is calling iom_wait
       at the time, it will return and tell you the fd and the event.

       Note  that  the  event  registration is removed from the iomux_t context if it occurs. You
       will have to call iom_wait again after you handled the event, if you are still  interested
       in it.

       Closing a file descriptor with registered events will discard the event registration.

LINKING

       You may have to add -lpthread to the command line in the linking step.

RETURN VALUE

       iom_add returns 0 on success and -1 on error, setting errno.

SEE ALSO

       iom_init, iom_wait, iom_abort

                                                                                       iom_add(3)