thread.c (rb_mutex_lock, lock_func): Avoid busy loop and performance degression. bm_vm3_thread_mutex.rb performance change from 109.064sec to 16.331sec.
thread.c (init_lock_timeout): New helper function.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31373 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
thread.c (rb_mutex_lock, lock_func): Avoid busy loop and
performance degression. bm_vm3_thread_mutex.rb performance
change from 109.064sec to 16.331sec.
thread.c (init_lock_timeout): New helper function.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31373 b2dd03c8-39d4-4d8f-98ff-823fe69b080e