more on light weight mutex

[valette at crf.canon.fr (VALETTE Eric)]

>>>>> "joel" == joel  <joel at OARcorp.com> writes:

joel> Agreed.  This would unfortunately be a side-effect of using the very
joel> light-weight mutex proposed.

... stuff removed

joel> I do like the idea of having a low level mutex as proposed.  We just have
joel> to decide how feature rich the blocking side is.

Note that the priority inversion handling requires recording owner thread id
anyway as it will be needed by blocking code to increase the thread priority
when contention occurs...

My two cents...

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