PPT-CS 140 Lecture Notes: Lock Implementation
Author : yoshiko-marsland | Published Date : 2016-11-14
Slide 1 Uniprocessor Locks void lockacquire struct lock l intrdisable if lgtlocked lgtlocked 1 else queueadd amplgtq
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CS 140 Lecture Notes: Lock Implementation: Transcript
Slide 1 Uniprocessor Locks void lockacquire struct lock l intrdisable if lgtlocked lgtlocked 1 else queueadd amplgtq . Slide . 1. Too Much Milk. . Roommate . A. 3:00. Arrive home: no milk. 3:05. Leave for store. 3:10. Arrive at store. 3:15. Leave store. 3:20. Arrive home, put milk away. CS 140 Lecture Notes: Concurrency. Slide . 1. <p> Sample <b>bold</b> display</p>. P. B. #text. #text. nextSibling. prevSibling. nextSibling. prevSibling. firstChild. lastChild. parentNode. parentNode. parentNode. Slide . 1. Too Much Milk With Locks. Both threads:. struct. lock l;. .... l. ock_acquire. (&l);. if (milk == 0) . {. . . buy_milk. ();. }. lock_release. (&. l);. CS 140 Lecture Notes: Locks. IME 20051164 Junghee Pyeon. IME 20051206 Wootaek Hwang. IME. . 20051214 Joonhyung Ahn. CONTENTS. Company & Product Overview. Company Overview. Product Overview. Business Analysis. Slide . 1. Memory Layout for Process. Code. 0. ∞. Data. Stack. CS 140 Lecture Notes: Linkers. Slide . 2. Creating a Process. 101010101010101010101010101010101010101010101010. cc. x.c. x.s. as. x.o. Slide . 1. Uniprocessor . Locks. void . lock_acquire. (. struct. lock *l) {. . intr_disable. ();. if (!l->locked) {. l->locked = 1;. } else {. . queue_add. (&l->q, . Slide . 1. Uniprocessor . Locks. void . lock_acquire. (. struct. lock *l) {. . intr_disable. ();. if (!l->locked) {. l->locked = 1;. } else {. . queue_add. (&l->q, . \r ŒŽ‘’ŒŽŒ‘Œ“\t…\t† ”•’ŒŽ–\b \n„ \n ŸŒ\n’Ÿ\rŒŸ\r•˜—\b\rŒ\n\b›Œ™’\n\nŸŒ\b\n™\rŸŽ\n…Œ™\rŒ‘&# Œ] Œv ŒŒ] Œ] &Œ Slide . 1. <. p>Sample . <b>bold</b> display</p>. P. B. #text. #text. nextSibling. prevSibling. nextSibling. prevSibling. firstChild. lastChild. parentNode. parentNode. parentNode. Slide . 1. Access Matrix. File A. File B. File C. Printer 1. Alice. RW. RW. RW. OK. Bob. R. R. RW. OK. Carol. RW. David. RW. OK. Faculty. RW. RW. OK. CS 140 Lecture Notes: Protection. Slide . 2. Access Matrix. Slide . 1. Memory Layout for Process. Code. 0. ∞. Data. Stack. CS 140 Lecture Notes: Linkers. Slide . 2. Creating a Process. Code. 0. ∞. Data. Stack. 101010101010101010101010101010101010101010101010. Slide . 1. free. File Allocation Table. A: 6. B: 1. .... 6. 4. 3. 0. 1. File A:. File B:. Directory (5). 2. end. 2. 3. end. 3. 4. 5. end. 4. 6. 7. free. …. 1. 2. Disk Scheduling. CS 140 Lecture Notes: Disk Scheduling.
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