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Real Time Operating System Exam2006_2

1.
a) „งˆํฌ ‚ฌšฉํ•˜Š”ฐ ดˆธฐ ํŒŒธํ„ 0,1, n œกœ „–ด„œ ฐฐ ดฒคํŠธ ํ”Œž˜ทธ, ฐ”ด„ˆฆฌ „งˆํฌ, šดํŒ… „งˆํฌ กœ “ฐŠ”„ช…ํ•˜Š”‚˜˜ด
b) „งˆํฌ ตฌํ˜„ –ด–ค ฝ”“œ—„œ OSSched() ํ˜ธถœํ•˜ณ  ‚˜„œ ฌดŠจ ฝ”“œ€ žˆŠ”€ ‚˜˜ด. Œ€žต ํƒ€ž„•„›ƒœกœ Œ•„˜จ€, •„‹ˆฉด „งˆํฌ –ปŠ”€ € จ ฝ”“œ
c) mutex ‚˜ ญ ทธŸฐกœ ฐ”ด„ˆฆฌ „งˆํฌšฉœกœ “ธˆ˜ žˆŠ”ฐ ตณด ™œ ฐ”ด„ˆฆฌ „งˆํฌ  œณต ํ•ด‚˜?
d) mutex ตฌกฐฒด (งž‚˜?)˜ €ˆ˜ค‘ Counting€ จ จธ‹œธฐ€ žˆŠ”ฐ ดƒํ˜ธฐฐ œ „งˆํฌ—„œŠ” –ด–ปฒŒ ํ™œšฉํ•˜‚˜?
e) ฉ”‹œ€ ํ ฐ•Šคกœ šดํŒ… „งˆํฌ šฉœกœ “ฐŠ” ฐฉฒ•
2.
a) uCOS-ii —„œ ANSI C˜ malloc™€ free ‚ฌšฉํ•˜€ •ŠŠ” ดœ ?
b) ฉ”ชจฆฌ  •ณด ตฌกฐฒด..˜ š” ํ•„“œ™€ šฉ„ „ช…ํ•˜‹œ˜ค.
c) OSMemCreate € จ ํ•œฌธ œ. ํ•จˆ˜ ฐ””” “ฐŠ”€, ํ•จˆ˜ํ˜ธถœ€„„ ž‘„ํ•˜Š”ฒƒธ€Š”  •ํ™•ํžˆ ธฐ–ต•ˆ‚จ.
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