我笔记这部分的程式码 写的乱乱的(朋友给的) 所以 不太确定正确性 希望大家能帮我看看有没有错.. Customer :semaphore = 0 Barber :semaphore = 0 waiting :int = 0 mutex :int = 0 Barber 程式片段: repeat: wait(Customer); wait(mutex); waiting = waiting - 1; signal(Barber); signal(mutex); cut-hair(); until False Customer 程式片段: wait(mutex); if(waiting<n) then { waiting = waiting + 1; signal(Customer); signal(mutex); wait(Barber); get-haircut(); } else signal(mutex); 这样对吗? 因为剩这几个还没背.. 怕背错 -- 一切.... 似乎不再那麽重要.... --

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