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Real Time Operating System Exam2006_2

1.
a) „ธ๋งˆฌ๋ฅผ ‚ฌšฉ•˜๋Š”๋ฐ ดˆธฐ ŒŒ๋ผ๋ฏธ„ฐ๋ฅผ 0,1, n œผ๋กœ„–ด„œ ฐฐ ด๋ฒคŠธ ”Œ๋ž˜ธ, ๋ฐ”ด๋„ˆ๋ฆฌ „ธ๋งˆฌ, นดšดŒ… „ธ๋งˆฌ ๋กœ “ฐ๋Š”ฑฐ „ค๋ช…•˜๋Š”ฑฐ ๋‚˜˜
b) „ธ๋งˆฌ ตฌ˜„ –ด๋–ค ฝ”๋“œ—„œ OSSched() ๋ฅผ ˜œ•˜  ๋‚˜„œ ๋ฌดŠจ ฝ”๋“œฐ€ žˆ๋Š”ง€ ๋‚˜˜ด. ๋Œ€๋žต ƒ€ž„•„›ƒœผ๋กœ ๋Œ•„˜ฑดง€, •„‹ˆ๋ฉด „ธ๋งˆฌ๋ฅผ –ป๋Š”ฑดง€ ด€๋ ฝ”๋“œ
c) mutex ๋‚˜ ๋ญ ธ๋Ÿฐฑธ๋กœ ๋ฐ”ด๋„ˆ๋ฆฌ „ธ๋งˆฌšฉœผ๋กœ “ธˆ˜ žˆ๋Š”๋ฐ ตณ™œ ๋ฐ”ด๋„ˆ๋ฆฌ „ธ๋งˆฌ๋ฅผ  œณต •ฃผ๋‚˜?
d) mutex ตฌกฐฒด (๋งž๋‚˜?)˜ ๋ณ€ˆ˜‘ Countingด€๋ จ ๋จธ‹œธฐฐ€ žˆ๋Š”๋ฐ ฑธ ƒ˜ธ๋ฐฐ œ „ธ๋งˆฌ—„œ๋Š” –ด๋–ปฒŒ ™œšฉ•˜๋‚˜?
e) ๋ฉ”‹œง€  ๋ฐ•Šค๋กœ นดšดŒ… „ธ๋งˆฌ šฉœผ๋กœ “ฐ๋Š” ๋ฐฉ๋ฒ•
2.
a) uCOS-ii —„œ ANSI C˜ malloc™€ free๋ฅผ ‚ฌšฉ•˜ง€ •Š๋Š” œ ?
b) ๋ฉ”๋ชจ๋ฆฌ  •๋ณด ตฌกฐฒด..˜ ฃผš” •„๋“œ™€ šฉ๋„๋ฅผ „ค๋ช…•˜‹œ˜ค.
c) OSMemCreate ด€๋ •œ๋ฌธ œ. •ˆ˜ ๋ฐ”๋””๋ฅผ “ฐ๋ผ๋Š”ฑดง€, •ˆ˜˜œ๋ถ€๋ถ„„ ž‘„•˜ผ๋Š”ฒƒง€๋Š”  •™•žˆ ธฐ–ต•ˆ๋‚จ.
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