[理工] [OS] synchronization
選擇題中的選項
True 1. wait and signal of a counting semaphore cannot be implemented
with multiple binary semaphores.
這題是不是因為多了個multiple所以才錯呢~那請問為什麼
False 2. When a semaphore block a process,the process is moved to
ready state
block之後不是就把process放到waiting queue裡面嗎?
所以是ready state吧?
False 3. If the conditions of mutual exclusion,hold and wait,no preemption
,and circular wait hold simultaneously in the system,a deadlock
situation will arise.
滿足四個條件死結發生~所以不太清楚這錯在哪邊
請高手解答 謝謝
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