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);
Note: There is no glibc wrapper for this system call; see NOTES.
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.
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 3.44 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/.
