aio_error
—
retrieve error status of asynchronous I/O operation
(REALTIME)
Standard C Library (libc, -lc)
#include <aio.h>
int
aio_error
(const
struct aiocb *iocb);
The aio_error
() system call returns the error status of
the asynchronous I/O request associated with the structure pointed to by
iocb.
If the asynchronous I/O request has completed successfully,
aio_error
() returns 0. If the request has not yet
completed, EINPROGRESS
is returned. If the request has
completed unsuccessfully the error status is returned as described in
read(2),
readv(2),
write(2),
writev(2),
or
fsync(2).
On failure, aio_error
() returns
-1
and sets errno
to indicate
the error condition.
The aio_error
() system call will fail if:
- [
EINVAL
]
- The iocb argument does not reference an outstanding
asynchronous I/O request.
aio_cancel(2),
aio_read(2),
aio_readv(2),
aio_return(2),
aio_suspend(2),
aio_write(2),
aio_writev(2),
fsync(2),
read(2),
write(2),
aio(4)
The aio_error
() system call is expected to conform to
the IEEE Std 1003.1 (“POSIX.1”)
standard.
The aio_error
() system call first appeared in
FreeBSD 3.0.