IO_DESTROY(2)             (2020-12-21)              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
          Note: this page describes the raw Linux system call inter-
          face.  The wrapper function provided by libaio uses a dif-
          ferent type for the ctx_id argument.  See NOTES.

          The io_destroy() system call will attempt to cancel all out-
          standing 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

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     IO_DESTROY(2)             (2020-12-21)              IO_DESTROY(2)

          (io_context_t) for the ctx_id argument.  Note also that the
          libaio wrapper does not follow the usual C library conven-
          tions 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 indicat-
          ing 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 5.10 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/.

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