K 10 svn:author V 7 davidxu K 8 svn:date V 27 2004-12-30T02:56:17.000000Z K 7 svn:log V 331 Make umtx_wait and umtx_wake more like linux futex does, it is more general than previous. It also lets me implement cancelable point in thread library. Also in theory, umtx_lock and umtx_unlock can be implemented by using umtx_wait and umtx_wake, all atomic operations can be done in userland without kernel's casuptr() function. END