NAME
io_queue_init - Initialize asynchronous io state machine
SYNOPSIS
#include <errno.h>
#include <libaio.h>
I int io_queue_init(int maxevents, io_context_t *ctx );
DESCRIPTION
io_queue_init
Attempts to create an aio context capable of receiving at least
R maxevents
events.
R ctx
must point to an aio context that already exists and must be initialized
to
R 0
before the call.
If the operation is successful, *cxtp is filled with the resulting handle.
RETURN VALUES
On success,
io_queue_init
returns 0. Otherwise, -error is return, where
error is one of the Exxx values defined in the Errors section.
ERRORS
EFAULT
iocbs
referenced data outside of the program's accessible address space.
EINVAL
maxevents
is <= 0 or
R ctx
is an invalid memory locattion.
EAGAIN
R maxevents > max_aio_reqs
where max_aio_reqs is a tunable value.
SEE ALSO
R io(3),
R io_cancel(3),
R io_fsync(3),
R io_getevents(3),
R io_prep_fsync(3),
R io_prep_pread(3),
R io_prep_pwrite(3),
R io_queue_release(3),
R io_queue_run(3),
R io_queue_wait(3),
R io_set_callback(3),
R io_submit(3),
R errno(3)
