GNU/Linux |
CentOS 3.1 |
|
io_setup(2) |
io_setup − Create an asynchronous I/O context
#include <linux/aio.h>
long io_setup (unsigned nr_events, aio_context_t *ctxp); |
io_setup creates an asynchronous I/O context capable of receiving at least nr_events. ctxp must not point to an AIO context that already exists, and must be initialized to 0 prior to the call. On successful creation of the AIO context, *ctxp is filled in with the resulting handle.
io_setup returns 0 on success; otherwise, one of the errors listed in the "Errors" section is returned.
EINVAL |
ctxp is not initialized, or the specified nr_events exceeds internal limits. nr_events should be greater than 0. | ||
EFAULT |
An invalid pointer is passed for ctxp. | ||
ENOMEM |
Insufficient kernel resources are available. | ||
EAGAIN |
The specified nr_events exceeds the user’s limit of available events. | ||
ENOSYS |
io_setup is not implemented on this architecture. |
io_setup is Linux specific and should not be used in programs that are intended to be portable.
The asynchronous I/O system calls first appeared in Linux 2.5, August 2002.
io_destroy(2), io_getevents(2), io_submit(2), io_cancel(2).
The asynchronous I/O system calls were written by Benjamin LaHaise.
Kent Yoder.
io_setup(2) |