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path: root/src/thread/pthread_spin_trylock.c
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2015-04-22minor optimization to pthread_spin_trylockRich Felker1-1/+2
use CAS instead of swap since it's lighter for most archs, and keep EBUSY in the lock value so that the old value obtained by CAS can be used directly as the return value for pthread_spin_trylock.
2011-09-16fix more instances of old a_xchg (use new a_swap name)Rich Felker1-1/+1
2011-03-28revert some more spin optimizations that turned out to be pessimizationsRich Felker1-2/+1
2011-03-24optimize contended case for pthread_spin_trylockRich Felker1-1/+2
2011-02-12initial check-in, version 0.5.0v0.5.0Rich Felker1-0/+6