Re: [PATCH 0/5] MR3103: server: Create and use a desktop shared mapping for GetCursorPos.

[Jinoh Kang (＠iamahuman)]

Jinoh Kang (@iamahuman) commented about server/queue.c:
> static cursor_pos_t cursor_history[64];
>  static unsigned int cursor_history_latest;
>
> +#if defined(__i386__) || defined(__x86_64__)
> +
> +#define SHARED_WRITE_BEGIN( x )                                  \
> +    do {                                                         \
> +        volatile unsigned int __seq = *(x);                      \
> +        assert( (__seq & SEQUENCE_MASK) != SEQUENCE_MASK );      \
> +        *(x) = ++__seq;                                          \
> +    } while(0)
> +
> +#define SHARED_WRITE_END( x )                                    \
> +    do {                                                         \
> +        volatile unsigned int __seq = *(x);                      \
> Ditto.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/3103#note_36121