Based on [a patch](https://www.winehq.org/mailman3/hyperkitty/list/wine-devel@winehq.or… by Jinoh Kang (@iamahuman) from February 2022.
I removed the need for the event object and implemented fast paths for Linux.
On Linux 4.16+ `membarrier(MEMBARRIER_CMD_GLOBAL_EXPEDITED, ...)` is used.
On x86 Linux <= 4.15 `madvise(..., MADV_DONTNEED)` is used, which sends IPIs to all cores causing them to do a memory barrier.
On non-x86 Linux 4.3+ `membarrier(MEMBARRIER_CMD_SHARED, ...)` is used.
On Linux <= 4.2 and on other platforms the fallback path using APCs is used.
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https://gitlab.winehq.org/wine/wine/-/merge_requests/741