On Mon, Jun 17, 2019 at 05:34:56PM +0100, Frediano Ziglio wrote:
> Signed-off-by: Frediano Ziglio <fziglio@xxxxxxxxxx>
> ---
> server/spice-char.h | 26 ++++++++++++++++++++++++++
> 1 file changed, 26 insertions(+)
>
> Changes since v1:
> - updated comments
>
> diff --git a/server/spice-char.h b/server/spice-char.h
> index 1a8a031d2..a3b9d26bf 100644
> --- a/server/spice-char.h
> +++ b/server/spice-char.h
> @@ -40,9 +40,35 @@ typedef enum {
> struct SpiceCharDeviceInterface {
> SpiceBaseInterface base;
>
> + /* Set the state of the device.
> + * connected should be 0 or 1.
> + * Setting state to 0 causes the device to be disabled.
> + * This can be used by SPICE server to tell guest that device is not
> + * working anymore (for instance because the guest itself sent some
> + * wrong request).
> + */
> void (*state)(SpiceCharDeviceInstance *sin, int connected);
> +
> + /* Write some bytes to the character device.
> + * Returns bytes copied from buf or a value < 0 on errors.
> + * If able to write some bytes the function should return the amount of
> + * bytes successfully written.
> + * Function can return a value < len, even 0.
> + * errno is not determined after calling this function.
> + * Function should be implemented as no-blocking.
> + * A len < 0 causes indeterminate results.
> + */
> int (*write)(SpiceCharDeviceInstance *sin, const uint8_t *buf, int len);
> +
> + /* Read some bytes from the character device.
> + * Returns bytes copied into buf or a value < 0 on errors.
> + * Function can return 0 if no data is available or len is 0.
> + * errno is not determined after calling this function.
> + * Function should be implemented as no-blocking.
> + * A len < 0 causes indeterminate results.
> + */
> int (*read)(SpiceCharDeviceInstance *sin, uint8_t *buf, int len);
> +
> void (*event)(SpiceCharDeviceInstance *sin, uint8_t event);
Poor event!
Acked-by: Victor Toso <victortoso@xxxxxxxxxx>
> spice_char_device_flags flags;
> };
> --
> 2.20.1
>
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