io_destroy – destroy an asynchronous I/O context

NAME

       io_destroy - destroy an asynchronous I/O context

SYNOPSIS

       #include           /* 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 3.55 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/.

Linux                            2013-04-08                    IO_DESTROY(2)