IO_DESTROY
Section: Linux Programmer's Manual (2)
Updated: 2017-09-15
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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
will attempt to cancel all outstanding asynchronous I/O operations against
ctx_id,
will block on the completion of all operations
that could not be canceled, and will destroy the
ctx_id.
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 4.13 of the Linux
man-pages
project.
A description of the project,
information about reporting bugs,
and the latest version of this page,
can be found at
https://www.kernel.org/doc/man-pages/.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- VERSIONS
-
- CONFORMING TO
-
- NOTES
-
- SEE ALSO
-
- COLOPHON
-
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