oracular (3) aio_error.3.gz

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)