aio_read/8-1.c fails

Hi All,

aio_read/8-1.c "fills in an aiocb with a NULL aio_buf" and then expect that the operation is not succesfully queued.
It fails that aio_read() always return 0. And I checked the posix spec and didn't find that an aiocb with NULL aio_buf will cause enqueue fails. So is this case valid?

Thanks,
Kai

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aio_read/8-1.c "fills in an aiocb with a NULL aio_buf" and then expect that the operation is not succesfully queued.
It fails that aio_read() always return 0. And I checked the posix spec and didn't find that an aiocb with NULL aio_buf will cause enqueue fails. So is this case valid?

Quoted 6 lines

The testcase passes here. However looking at the sources it tries to read zero bytes to NULL buffer, which is wrong as the behavior in such case is undefied by POSIX. I guess this is just another case where the testcase was coded with "It works so it must be right" attitude.

And out of curiosity, which libc library makes the testcase fail?

Yes, aio_read() return 0, and the case fails.

In posix spec Line 19887:
RETURN VALUE
The aio_read( ) function shall return the value zero if the I/O operation is successfully queued;
otherwise, the function shall return the value ???1 and set errno to indicate the error.

So when the I/O operation enqueued, aio_read() return 0, then that the I/O operation will be processing.
I still doubt the case is invalid.