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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).
2019-07-23 Linux