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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 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 VER-
       SIONS.

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_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 in-
       dicating  an error: -1, with errno set to a (positive) value that indi-
       cates 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 6.04              2023-03-30                     io_destroy(2)

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