Two methods to implement semap

送交者: 姚夭夭 2015月05月07日13:05:35 於 [靈機一動] 發送悄悄話

回  答: 第二種方法完成楊X偉交給的不可能的任務 由 姚夭夭 於 2015-05-07 12:53:35

Two methods to implement semaphore on PDP11 Unix V6 machine. method 1 https://groups.google.com/group/chanzhaiming/attach/b75c0fb4dbffbf4b/1fork.c?part=0.1&authuser=0&view=1 https://groups.google.com/group/chanzhaiming/attach/b75c0fb4dbffbf4b/1parent.c?part=0.2&authuser=0&view=1 https://groups.google.com/group/chanzhaiming/attach/b75c0fb4dbffbf4b/1child.c?part=0.3&authuser=0&view=1   method 2 https://groups.google.com/group/chanzhaiming/attach/e11b80e4400dd30/2fork.c?part=0.1&authuser=0&view=1 https://groups.google.com/group/chanzhaiming/attach/e11b80e4400dd30/2parent.c?part=0.2&authuser=0&view=1 https://groups.google.com/group/chanzhaiming/attach/e11b80e4400dd30/2child.c?part=0.3&authuser=0&view=1

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用第二種方法，實現了4個進程竟爭信號燈的事。哈哈，到“我的新 - 姚夭夭 05/08/15 (1701)

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