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Takashi Yano 0b6b450c64 Cygwin: _cygtls: Remove _cygtls::spinning
There seems to be no rationale reason for _cygtls::spinning to exist,
so it has been removed. _cygtls::spinning was introduced in the commit
edc4f86ad282A, and this flag means that another thread is waiting to
acquire _cygtls::stacklock. It is checked in the sig thread in _cygtls::
interrupt_now(), and if spinning is true, the interrupt will be delayed.
However, in this case, _cygtls::incyg is also set, so it is supposed to
be covered by _cygtls::incyg flag and does not seem to add any value.

If some problems happen in the signal handling, it might be a good idea
to revert this commit and check if the issue will be fixed.

Reviewed-by: Corinna Vinschen <corinna@vinschen.de>
Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
2024-12-08 08:58:27 +09:00
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