x11r4 man page for io_destroy

IO_DESTROY(2)						     Linux Programmer's Manual						     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);

       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 comple-
       tion 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 4.15 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/.

Linux								    2017-09-15							     IO_DESTROY(2)