K 10 svn:author V 7 davidxu K 8 svn:date V 27 2007-11-21T06:01:02.000000Z K 7 svn:log V 166 Reuse nwaiter member field to record number of waiters, in sem_post(), this should reduce the chance having to do a syscall when there is no waiter in the semaphore. END