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Real Time Operating System Exam2006_2

1.
a) „ธงˆฌฅผ ‚ฌšฉ•˜Š”ฐ ˆ๊ธฐ ŒŒผฏธ„ฐฅผ 0,1, n œผกœ „ฃ–„œ ๊ฐ๊ฐ ฒคŠธ ”Œž˜๊ทธ, ฐ”„ˆฆฌ „ธงˆฌ, šŒ… „ธงˆฌ กœ “ฐŠ”๊ฑฐ „ค…•˜Š”๊ฑฐ ‚˜˜
b) „ธงˆฌ ๊ตฌ˜„ ––ค ฝ”“œ—„œ OSSched() ฅผ ˜ธถœ•˜๊ณ  ‚˜„œ Šจ ฝ”“œ๊ฐ€ žˆŠ”€ ‚˜˜. Œ€žต ƒ€ž„•„›ƒœผกœ Œ•„˜จ๊ฑ€, •„‹ˆ „ธงˆฌฅผ –Š”๊ฑ€€ จ ฝ”“œ
c) mutex ‚˜ ญ ๊ทธŸฐ๊ฑธกœ ฐ”„ˆฆฌ „ธงˆฌšฉœผกœ “ธˆ˜ žˆŠ”ฐ ๊ตณ ™œ ฐ”„ˆฆฌ „ธงˆฌฅผ  œ๊ณต •ฃผ‚˜?
d) mutex ๊ตฌกฐ (งž‚˜?)˜ €ˆ˜ค‘ Counting๊€ จ จธ‹œ๊ธฐ๊ฐ€ žˆŠ”ฐ ๊ฑธ ƒ˜ธฐฐ œ „ธงˆฌ—„œŠ” ––๊ฒŒ ™œšฉ•˜‚˜?
e) ฉ”‹œ€  •Šคกœ šŒ… „ธงˆฌ šฉœผกœ “ฐŠ” ฐฉ•
2.
a) uCOS-ii —„œ ANSI C˜ malloc™€ freeฅผ ‚ฌšฉ•˜€ •ŠŠ” œ ?
b) ฉ”ฆฌ  • ๊ตฌกฐ..˜ ฃผš” •„“œ™€ šฉ„ฅผ „ค…•˜‹œ˜ค.
c) OSMemCreate€ จ •œฌธ œ. •ˆ˜ ฐ”””ฅผ “ฐผŠ”๊ฑ€, •ˆ˜˜ธถœ€ถ„„ ž‘„ฑ•˜ผŠ”๊ฒƒธ€Š”  •™•žˆ ๊ธฐ–ต•ˆ‚จ.
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