Then it's documentation bug or maybe some discrepancy between SUS and
POSIX.
$ man posix_fadvise
RETURN VALUES
The posix_fadvise() function returns the value 0 if successful;
otherwise
the value -1 is returned and the global variable errno is set to
indicate
the error.
STANDARDS
The posix_fadvise() interface conforms to IEEE Std 1003.1-2001
(``POSIX.1'').
HISTORY
The posix_fadvise() system call first appeared in FreeBSD 9.1.
On Tue, Dec 8, 2015 at 9:01 AM, Garrett Wollman <
[email protected]> wrote:
> In article <CAH7qZfvV-RepAc6N0UxFi2RBthxrd+qHD-Qh5dc-9v=
> [email protected]>
> [email protected] writes:
>
> >Hi, while working on some unrelated feature I've noticed that at least
> >those two system calls are not returning proper value (-1) on error.
> >Instead actual errno value is returned from the syscall verbatim,
>
> That is what the specification requires.
>
> RETURN VALUE
> Upon successful completion, posix_fadvise( ) shall return
> zero; otherwise, an error number shall be returned to
> indicate the error.
>
> (Quote from SUSv7 p. 1410, lines 46221-46223.)
>
> -GAWollman
>
>
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