Re: [PATCH 02/18] Print warnings on untested code paths

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> 
> ---
>  server/display-channel.c | 3 +++
>  server/sound.c           | 1 +
>  2 files changed, 4 insertions(+)
> 
> diff --git a/server/display-channel.c b/server/display-channel.c
> index 1f4d66f..3a06305 100644
> --- a/server/display-channel.c
> +++ b/server/display-channel.c
> @@ -1921,6 +1921,9 @@ void display_channel_create_surface(DisplayChannel
> *display, uint32_t surface_id
>          QXLInstance *qxl = display->common.qxl;
>          RedsState *reds = red_qxl_get_server(qxl->st);
>          GArray *renderers = reds_get_renderers(reds);
> +        /* These days, noone is trying to use multiple renderers, the
> software one
> +         * is always used */
> +        g_warn_if_fail(renderers->len == 1);
>          for (i = 0; i < renderers->len; i++) {
>              uint32_t renderer = g_array_index(renderers, uint32_t, i);
>              surface->context.canvas = create_canvas_for_surface(display,
>              surface, renderer);
> diff --git a/server/sound.c b/server/sound.c
> index aae841c..b95e7e7 100644
> --- a/server/sound.c
> +++ b/server/sound.c
> @@ -1620,6 +1620,7 @@ void snd_set_playback_compression(int on)
>      SndWorker *now = workers;
>  
>      for (; now; now = now->next) {
> +        g_critical("untested code path");
>          if (now->base_channel->type == SPICE_CHANNEL_PLAYBACK &&
>          now->connection) {
>              PlaybackChannel* playback = (PlaybackChannel*)now->connection;
>              SpicePlaybackState *st = SPICE_CONTAINEROF(now,
>              SpicePlaybackState, worker);

I would prefer a better option for this last.
The function is not currently called by Qemu.
We could deprecate and make it do nothing. It's just disabling the sound
compression (which is on by default) and anyway the compression are also
handled by capabilities.
Even better would be writing a test for this function.

Frediano
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