This fix makes sense. I've also successfully tested with this new "pure"
pthread-based QemuEvent in the apple-gfx code where we initially considered
using QemuEvent and ran into the destruction issue on macOS.
Tested-by: Phil Dennis-Jordan
Reviewed-by: Phil Dennis-Jordan
(Unrelated: email to th
qemu-thread used to abstract pthread primitives into futex for the
QemuEvent implementation of POSIX systems other than Linux. However,
this abstraction has one key difference: unlike futex, pthread
primitives require an explicit destruction, and it must be ordered after
wait and wake operations.
