《Operating System Concepts》閱讀筆記:p180-p187
《Operating System Concepts》學習第 20 天,p180-p187 總結(jié),總計 8 頁。
一、技術(shù)總結(jié)
1.forke-join
A strategy for thread creation in which the main parent thread creates (forks) one or more child threads and then waits for the children to terminate and join with it.

二、英語總結(jié)(生詞:3)
1.fork
(1)fork: furca("two-pronged fork(兩刺叉), pitchfork(干草叉)")
c. a tool with prongs(尖齒),即我們常說的“(吃飯用的,或者干活用的)叉子”。引申出“a point of divergence(such as road) evolved from its physical shape”之意。
(2)示例
Fork-in is a strategy for thread creation in which the main parent thread creates (forks) one or more child threads and then waits for the children to terminate and join with it(《Operating System Concepts》第 177 頁)。
關于英語的注解同步更新匯總到 https://github.com/codists/English-In-CS-Books 倉庫。
三、其它
以前一直不理解 fork 想表達的意思,總是覺得為什么不直接用 create 呢?直到看了這本書,查了 fork 的意思——叉子,結(jié)合圖示,才真正的理解了 fork 的含義(branch off from the main thread,暗含“從主干分叉出來”之意)。
四、參考資料
1. 編程
(1) Abraham Silberschatz,Peter Baer Galvin,Greg Gagne《Operating System Concepts》:https://book.douban.com/subject/30272539/
2. 英語
(1) Etymology Dictionary:https://www.etymonline.com
(2) Cambridge Dictionary:https://dictionary.cambridge.org

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