io_destroy(2) - Linux manual page (original) (raw)

iodestroy(2) System Calls Manual iodestroy(2)

NAME top

   io_destroy - destroy an asynchronous I/O context

LIBRARY top

   Standard C library (_libc_, _-lc_)

SYNOPSIS top

   **#include <linux/aio_abi.h>** /* Definition of **aio_context_t** */
   **#include <sys/syscall.h>** /* Definition of **SYS_*** constants */
   **#include <unistd.h>**

   **int syscall(SYS_io_destroy, aio_context_t** _ctxid_**);**

   _Note_: glibc provides no wrapper for **io_destroy**(), necessitating
   the use of [syscall(2)](../man2/syscall.2.html).

DESCRIPTION top

   _Note_: this page describes the raw Linux system call interface.
   The wrapper function provided by _libaio_ uses a different type for
   the _ctxid_ argument.  See VERSIONS.

   The **io_destroy**() system call will attempt to cancel all
   outstanding asynchronous I/O operations against _ctxid_, will block
   on the completion of all operations that could not be canceled,
   and will destroy the _ctxid_.

RETURN VALUE top

   On success, **io_destroy**() returns 0.  For the failure return, see
   VERSIONS.

ERRORS top

   **EFAULT** The context pointed to is invalid.

   **EINVAL** The AIO context specified by _ctxid_ is invalid.

   **ENOSYS io_destroy**() is not implemented on this architecture.

VERSIONS top

   You probably want to use the **io_destroy**() wrapper function
   provided by _libaio_.

   Note that the _libaio_ wrapper function uses a different type
   (_iocontextt_) for the _ctxid_ 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)](../man2/syscall.2.html), then the return value follows the
   usual conventions for indicating an error: -1, with _[errno](../man3/errno.3.html)_ set to a
   (positive) value that indicates the error.

STANDARDS top

   Linux.

HISTORY top

   Linux 2.5.

SEE ALSO top

   [io_cancel(2)](../man2/io%5Fcancel.2.html), [io_getevents(2)](../man2/io%5Fgetevents.2.html), [io_setup(2)](../man2/io%5Fsetup.2.html), [io_submit(2)](../man2/io%5Fsubmit.2.html), [aio(7)](../man7/aio.7.html)

COLOPHON top

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Linux man-pages 6.10 2024-07-23 iodestroy(2)

Pages that refer to this page:io_cancel(2), io_getevents(2), io_setup(2), io_submit(2), syscalls(2), aio(7)