Re: [PATCH v4 0/1] MR384: vkd3d: Replace the descriptor object cache with a thread-local implementation.

[Giovanni Mascellani (＠giomasce)]

Giovanni Mascellani (@giomasce) commented about libs/vkd3d/device.c:
> - static struct vkd3d_mutex key_cache_mutex = {VKD3D_MUTEX_INITIALIZER};
> - static struct vkd3d_tls_key tls_key;
> - static bool tls_initialised;
> - int rc = 0;
> -
> - vkd3d_mutex_lock(&key_cache_mutex);
> -
> - if (!tls_initialised)
> - {
> -
>    rc = vkd3d_tls_key_create(&tls_key, global_tls_key_destroy);
> -
>    desc_rebalance_init(&view_desc_rebalance);
> -
>    desc_rebalance_init(&cbuffer_desc_rebalance);
> -
>    tls_initialised = true;
> - }
> -
> - vkd3d_mutex_unlock(&key_cache_mutex);

I guess this can be done more efficiently with `pthread_once()` and `InitOnceExecuteOnce()`. Though it's probably not a bottleneck anyway.