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_con-
       text_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 4.16 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)