Re: [Qemu-devel] [PATCH 2/2] qemu-ga: use state dir from CONFIG_QEMU_LOCALSTATEDIR

[Michael Roth <mdroth@linux.vnet.ibm.com>]

On Wed, Oct 03, 2012 at 06:35:58PM -0300, Luiz Capitulino wrote:
> Has the side effect of changing the default directory used to
> save the freeze status file from /tmp to ${prefix}/var/run.
> 
> This is a beneficial change for two reasons:
> 
>   1. FHS states that programs must not assume that files in /tmp will
>      still exist between invocations of the program. This defeats
> 	 the purpose of the freeze status file
> 
>   2. FHS dictates that /var/run must be cleaned on boot, this
>      ensures that a stale freeze status file will be removed on boot
> 
> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
> ---
>  qemu-ga.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/qemu-ga.c b/qemu-ga.c
> index b747470..daeaea5 100644
> --- a/qemu-ga.c
> +++ b/qemu-ga.c
> @@ -40,8 +40,8 @@
>  #else
>  #define QGA_VIRTIO_PATH_DEFAULT "\\\\.\\Global\\org.qemu.guest_agent.0"
>  #endif
> -#define QGA_PIDFILE_DEFAULT "/var/run/qemu-ga.pid"
> -#define QGA_STATEDIR_DEFAULT "/tmp"
> +#define QGA_STATEDIR_DEFAULT CONFIG_QEMU_LOCALSTATEDIR "/run"
> +#define QGA_PIDFILE_DEFAULT QGA_STATEDIR_DEFAULT "/qemu-ga.pid"

Just to confirm, in configure we have:

echo "qemu_localstatedir=$local_statedir" >> $config_host_mak

Is there some magic that generates a CONFIG_QEMU_LOCALSTATEDIR with the
same value? If so:

Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>

>  #define QGA_SENTINEL_BYTE 0xFF
> 
>  struct GAState {
> -- 
> 1.7.12.315.g682ce8b
>