Re: [RFC PATCH v2 14/14] chardev: Use QEMUChrEvent enum in IOEventHandler typedef

[Cornelia Huck <cohuck@redhat.com>]

On Wed, 18 Dec 2019 18:20:09 +0100
Philippe Mathieu-Daudé <philmd@redhat.com> wrote:

> The Chardev events are listed in the QEMUChrEvent enum.
> 
> By using the enum in the IOEventHandler typedef we:
> 
> - make the IOEventHandler type more explicit (this handler
>   process out-of-band information, while the IOReadHandler
>   is in-band),
> - help static code analyzers.
> 
> This patch was produced with the following spatch script:
> 
>   @match@
>   expression backend, opaque, context, set_open;
>   identifier fd_can_read, fd_read, fd_event, be_change;
>   @@
>   qemu_chr_fe_set_handlers(backend, fd_can_read, fd_read, fd_event,
>                            be_change, opaque, context, set_open);
> 
>   @depends on match@
>   identifier opaque, event;
>   identifier match.fd_event;
>   @@
>    static
>   -void fd_event(void *opaque, int event)
>   +void fd_event(void *opaque, QEMUChrEvent event)
>    {
>    ...
>    }
> 
> Then the following files were manually modified:
> 
>   - include/chardev/char-fe.h
>   - include/chardev/char.h
>   - include/chardev/char-mux.h
>   - chardev/char.c
>   - chardev/char-mux.c
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>

(...)

> diff --git a/hw/char/terminal3270.c b/hw/char/terminal3270.c
> index 2aab04fd4b..f7aba12565 100644
> --- a/hw/char/terminal3270.c
> +++ b/hw/char/terminal3270.c
> @@ -142,7 +142,7 @@ static void terminal_read(void *opaque, const uint8_t *buf, int size)
>      }
>  }
>  
> -static void chr_event(void *opaque, int event)
> +static void chr_event(void *opaque, QEMUChrEvent event)
>  {
>      Terminal3270 *t = opaque;
>      CcwDevice *ccw_dev = CCW_DEVICE(t);

Acked-by: Cornelia Huck <cohuck@redhat.com>