io_queue_init(2)
NAME
io_queue_init - Initialize asynchronous io state machine
SYNOPSIS
#include <errno.h> #include <libaio.h> 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 maxevents events. ctx must point to an aio context that already
exists and must be initialized to 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 ctx is an invalid memory location.
- ENOSYS Not implemented.
- EAGAIN maxevents > max_aio_reqs where max_aio_reqs is a tunable value.