IO_DESTROY(2)

NAME
io_destroy - destroy an asynchronous I/O context

SYNOPSIS
#include <linux/aio_abi.h>          /* Defines needed types */
int io_destroy(aio_context_t ctx_id);

DESCRIPTION

The io_destroy() system call removes the asynchronous I/O context specified by ctx_id from the list of I/O contexts and then destroys it. It can also cancel any outstanding asynchronous I/O actions on ctx_id and block on completion.

RETURN VALUE
On success, io_destroy() returns 0. For the failure return, see NOTES.

ERRORS

EFAULT
    The context pointed to is invalid.

EINVAL
    The AIO context specified by ctx_id is invalid.

ENOSYS
    io_destroy() is not implemented on this architecture.

VERSIONS

The asynchronous I/O system calls first appeared in Linux 2.5.

CONFORMING TO

io_destroy() is Linux-specific and should not be used in programs that are intended to be portable.

NOTES
Glibc does not provide a wrapper function for this system call. You could invoke it using syscall(2). But instead, you probably want to use the io_destroy() wrapper function provided by libaio. Note that the libaio wrapper function uses a different type (io_context_t) for the ctx_id argument. Note also that the libaio wrapper does not follow the usual C library conventions for indicating errors: on error it returns a negated error number (the negative of one of the values listed in ERRORS). If the system call is invoked via syscall(2), then the return value follows the usual conventions for indicating an error: -1, with errno set to a (positive) value that indicates the error.

SEE ALSO
io_cancel(2), io_getevents(2), io_setup(2), io_submit(2), aio(7)

COLOPHON
This page is part of release 3.41 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.