NAME

       aio_error - get error status of asynchronous I/O operation

LIBRARY

       Real-time library (librt, -lrt)

SYNOPSIS

       #include <aio.h>

       int aio_error(const struct aiocb *aiocbp);

DESCRIPTION

       The  aio_error()  function  returns the error status for the asynchronous I/O request with
       control block pointed  to  by  aiocbp.   (See  aio(7)  for  a  description  of  the  aiocb
       structure.)

RETURN VALUE

       This function returns one of the following:

       EINPROGRESS
              if the request has not been completed yet.

       ECANCELED
              if the request was canceled.

       0      if the request completed successfully.

       > 0    A  positive  error  number,  if the asynchronous I/O operation failed.  This is the
              same value that would have been stored in the errno  variable  in  the  case  of  a
              synchronous read(2), write(2), fsync(2), or fdatasync(2) call.

ERRORS

       EINVAL aiocbp  does  not point at a control block for an asynchronous I/O request of which
              the return status (see aio_return(3)) has not been retrieved yet.

       ENOSYS aio_error() is not implemented.

ATTRIBUTES

       For an explanation of the terms used in this section, see attributes(7).

       ┌───────────────────────────────────────────────────────────────┬───────────────┬─────────┐
       │Interface                                                      │ Attribute     │ Value   │
       ├───────────────────────────────────────────────────────────────┼───────────────┼─────────┤
       │aio_error()                                                    │ Thread safety │ MT-Safe │
       └───────────────────────────────────────────────────────────────┴───────────────┴─────────┘

STANDARDS

       POSIX.1-2008.

HISTORY

       glibc 2.1.  POSIX.1-2001.

EXAMPLES

       See aio(7).

SEE ALSO

       aio_cancel(3), aio_fsync(3),  aio_read(3),  aio_return(3),  aio_suspend(3),  aio_write(3),
       lio_listio(3), aio(7)