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Version 2 CSE, IIT Kharagpur

(AOS)iPhone iOS 4 Development Essentials – Xcode

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Neil Smyth, “iPhone iOS 4 Development Essentials – Xcode”, Fourth Edition, Payload media, 2011.AOS,Reference Book 5

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Page 1: (AOS)iPhone iOS 4 Development Essentials – Xcode

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Page 2: (AOS)iPhone iOS 4 Development Essentials – Xcode

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Version 2 CSE, IIT Kharagpur

Page 7: (AOS)iPhone iOS 4 Development Essentials – Xcode

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Real Time Computer

Environment Sensors

Actuators

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ActuatorProcessing

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Page 24: (AOS)iPhone iOS 4 Development Essentials – Xcode

e1/set timer(20 ms)

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Version 2 CSE, IIT Kharagpur

Page 25: (AOS)iPhone iOS 4 Development Essentials – Xcode

AwaitFirstDigit

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timer alarm / idle tone

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Version 2 CSE, IIT Kharagpur

Page 26: (AOS)iPhone iOS 4 Development Essentials – Xcode

timer alarm / terminate call

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Version 2 CSE, IIT Kharagpur

Page 27: (AOS)iPhone iOS 4 Development Essentials – Xcode

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Page 37: (AOS)iPhone iOS 4 Development Essentials – Xcode

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Page 75: (AOS)iPhone iOS 4 Development Essentials – Xcode

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Version 2 CSE, IIT Kharagpur

Page 77: (AOS)iPhone iOS 4 Development Essentials – Xcode

T5 preempted by T4

lock(CR)

lock(CR)T1 needs non−preemptable resource CR being held by T5

T1 undergoing unbounded priority inversion

unlock(CR)

T1 gets non−preemptableresource CR held by T5

t2 t3 t4 t5

T1

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T4

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Version 2 CSE, IIT Kharagpur

Page 78: (AOS)iPhone iOS 4 Development Essentials – Xcode

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Version 2 CSE, IIT Kharagpur

Page 79: (AOS)iPhone iOS 4 Development Essentials – Xcode

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Version 2 CSE, IIT Kharagpur

Page 111: (AOS)iPhone iOS 4 Development Essentials – Xcode

end

startwd_start(t1,exception−handler);

wd_tickle();

t1

f(){

}

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Version 2 CSE, IIT Kharagpur

Page 113: (AOS)iPhone iOS 4 Development Essentials – Xcode

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Version 2 CSE, IIT Kharagpur

Page 114: (AOS)iPhone iOS 4 Development Essentials – Xcode

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Application Program(user mode)

call

TrapOS Service

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check parameters

System

system callnext statement

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Version 2 CSE, IIT Kharagpur

Page 117: (AOS)iPhone iOS 4 Development Essentials – Xcode

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Version 2 CSE, IIT Kharagpur

Page 118: (AOS)iPhone iOS 4 Development Essentials – Xcode

Host System

Target Board

TCP/IP

Embeddedprocessor

ROM−residentoperating system

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Version 2 CSE, IIT Kharagpur

Page 119: (AOS)iPhone iOS 4 Development Essentials – Xcode

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Page 122: (AOS)iPhone iOS 4 Development Essentials – Xcode

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Page 125: (AOS)iPhone iOS 4 Development Essentials – Xcode

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Version 2 CSE, IIT Kharagpur

Page 138: (AOS)iPhone iOS 4 Development Essentials – Xcode

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Page 141: (AOS)iPhone iOS 4 Development Essentials – Xcode

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Page 142: (AOS)iPhone iOS 4 Development Essentials – Xcode

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Version 2 CSE, IIT Kharagpur

Page 179: (AOS)iPhone iOS 4 Development Essentials – Xcode

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