Re: [PATCH 07/19] Free dispatchers at exit

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> 
> From: Jonathon Jongsma <jjongsma@xxxxxxxxxx>
> 
> ---
>  server/red-dispatcher.c | 7 +++++++
>  server/red-dispatcher.h | 1 +
>  server/reds.c           | 2 ++
>  3 files changed, 10 insertions(+)
> 
> diff --git a/server/red-dispatcher.c b/server/red-dispatcher.c
> index 4b839a9..0425d6c 100644
> --- a/server/red-dispatcher.c
> +++ b/server/red-dispatcher.c
> @@ -904,6 +904,13 @@ void red_dispatcher_async_complete(struct RedDispatcher
> *dispatcher,
>      free(async_command);
>  }
>  
> +void red_dispatcher_free(RedDispatcher *self)
> +{
> +    g_object_unref(self->dispatcher);

See comment on previous patch!

(1) ... here you are shooting at your feet!

> +    /* FIXME: free other stuff */
> +    free(self);
> +}
> +
>  void red_dispatcher_init(RedsState *reds, QXLInstance *qxl)
>  {
>      RedDispatcher *red_dispatcher;
> diff --git a/server/red-dispatcher.h b/server/red-dispatcher.h
> index 14a8079..2fe8cd9 100644
> --- a/server/red-dispatcher.h
> +++ b/server/red-dispatcher.h
> @@ -26,6 +26,7 @@ typedef struct RedDispatcher RedDispatcher;
>  typedef struct AsyncCommand AsyncCommand;
>  
>  void red_dispatcher_init(SpiceServer *reds, QXLInstance *qxl);
> +void red_dispatcher_free(RedDispatcher *self);
>  
>  void red_dispatcher_set_mm_time(RedDispatcher *dispatcher, uint32_t);
>  void red_dispatcher_on_ic_change(RedDispatcher *dispatcher,
>  SpiceImageCompression ic);
> diff --git a/server/reds.c b/server/reds.c
> index d1b7d3b..b784310 100644
> --- a/server/reds.c
> +++ b/server/reds.c
> @@ -2757,9 +2757,11 @@ static int reds_init_ssl(RedsState *reds)
>  static void reds_destroy_internal(RedsState *reds)
>  {
>      g_array_unref(reds->renderers);
> +    g_object_unref(reds->main_dispatcher);
>      if (reds->main_channel) {
>          main_channel_close(reds->main_channel);
>      }
> +    g_list_free_full(reds->dispatchers,
> (GDestroyNotify)red_dispatcher_free);
>  #ifdef RED_STATISTICS
>      if (reds->stat_shm_name) {
>          shm_unlink(reds->stat_shm_name);

I'm wondering if would be better to add reference counting to RedsState
instead and automatically free RedsState when reference reach 0 instead.
You could still free the statistic files before program ends.

The correct way to run code at exit on libraries is to use destructor
attribute, not calling atexit.

Frediano
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