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| iom_add(3) | FreeBSD Library Functions Manual | iom_add(3) |
NAME
iom_add - add event to I/O multiplexerSYNTAX
#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
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