Re: [Qemu-devel] [PATCH] main: Hide F_GETFD and FD_CLOEXEC use for _WIN32

[Stefan Weil <sw@weilnetz.de>]

Am 22.10.2012 15:53, schrieb Corey Bryant:
> Signed-off-by: Corey Bryant<coreyb@linux.vnet.ibm.com>
> ---
>   vl.c | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/vl.c b/vl.c
> index 200d849..94c667d 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -812,11 +812,13 @@ static int parse_add_fd(QemuOpts *opts, void *opaque)
>           return -1;
>       }
>
> +#ifndef _WIN32
>       if (fcntl(fd, F_GETFD)&  FD_CLOEXEC) {
>           qerror_report(ERROR_CLASS_GENERIC_ERROR,
>                         "fd is not valid or already in use");
>           return -1;
>       }
> +#endif
>
>       if (fdset_id<  0) {
>           qerror_report(ERROR_CLASS_GENERIC_ERROR,


Are you sure that all other hosts provide F_GETFD and FD_CLOEXEC
and that MinGW will never do that?
Maybe testing those two macros instead of _WIN32 would be better:

#if defined(F_GETFD) && defined(FD_CLOEXEC)
...
#endif

I also think that this patch should be merged with the one which adds
that code and not applied as a separate patch (otherwise git bisect would
be broken).

Regards
Stefan Weil