io_destroy(2)                 System Calls Manual                io_destroy(2)

NAME
       io_destroy - destroy an asynchronous I/O context

LIBRARY
       Standard C library (libc, -lc)

SYNOPSIS
       #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 ctx_id);

       Note: glibc provides no wrapper for io_destroy(), necessitating the use
       of syscall(2).

DESCRIPTION
       Note: this page describes the raw Linux system call interface.  The
       wrapper function provided by libaio uses a different type for the
       ctx_id argument.  See VERSIONS.

       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
       VERSIONS.

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
       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.

STANDARDS
       Linux.

HISTORY
       Linux 2.5.

SEE ALSO
       io_cancel(2), io_getevents(2), io_setup(2), io_submit(2), aio(7)

Linux man-pages 6.7               2023-10-31                     io_destroy(2)