AIO_ERROR

Section: Linux Programmer's Manual (3)
Updated: 2015-03-02
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NAME

aio_error - get error status of asynchronous I/O operation  

SYNOPSIS

#include <aio.h>

int aio_error(const struct aiocb *aiocbp);

Link with -lrt.  

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.

*

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.

 

VERSIONS

The aio_error() function is available since glibc 2.1.  

ATTRIBUTES

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

Interface	Attribute	Value
aio_error()	Thread safety	MT-Safe

 

CONFORMING TO

POSIX.1-2001, POSIX.1-2008.  

EXAMPLE

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)  

COLOPHON

This page is part of release 4.13 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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Index

NAME

SYNOPSIS

DESCRIPTION

RETURN VALUE

ERRORS

VERSIONS

ATTRIBUTES

CONFORMING TO

EXAMPLE

SEE ALSO

COLOPHON