io_set_callback(3)                 Linux AIO                io_set_callback(3)

NAME
       io_set_callback - Set up io completion callback function

SYNOPSIS
       #include <errno.h>

       #include <libaio.h>

       static inline void io_set_callback(struct iocb *iocb, io_callback_t cb);

       struct iocb {
            void      *data;
            unsigned  key;
            short          aio_lio_opcode;
            short          aio_reqprio;
            int       aio_fildes;
       };

       typedef void (*io_callback_t)(io_context_t ctx, struct iocb *iocb, long res, long res2);


DESCRIPTION
       The callback is not done if the caller uses raw events from
       io_getevents(3), only with the library helpers.

RETURN VALUES
       None.

ERRORS
       None.

SEE ALSO
       io(3), io_cancel(3), io_fsync(3), io_getevents(3), io_prep_fsync(3),
       io_prep_pread(3), io_prep_pwrite(3), io_queue_init(3),
       io_queue_release(3), io_queue_run(3), io_queue_wait(3), io_submit(3),
       errno(3).

Linux                             2019-07-23                io_set_callback(3)