aio_error (3)

#include <aio.h>

int aio_error(const struct aiocb *aiocbp);

Link with -lrt.

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.)

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.

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.

The aio_error() function is available since glibc 2.1.

Multithreading (see pthreads(7))

The aio_error() function is thread-safe.

POSIX.1-2001, POSIX.1-2008.

See aio(7).

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

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