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(from:
c3a6839
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use atomic decrement rather than cas in pthread_exit thread count
author
Rich Felker
<dalias@aerifal.cx>
Fri, 26 Apr 2013 20:05:39 +0000
(16:05 -0400)
committer
Rich Felker
<dalias@aerifal.cx>
Fri, 26 Apr 2013 20:05:39 +0000
(16:05 -0400)
now that blocking signals prevents any application code from running
while the last thread is exiting, the cas logic is no longer needed to
prevent decrementing below zero.
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