22 lines
828 B
Plaintext
22 lines
828 B
Plaintext
@startuml
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skinparam backgroundColor transparent
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skinparam shadowing false
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skinparam defaultFontName Monospace
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skinparam defaultFontSize 12
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skinparam ArrowColor #8095a1
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skinparam rectangleBorderColor #2c7794
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skinparam rectangleBackgroundColor #edf6fa
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title A2 STRUCTURE — mutex, owner, wait list and resource
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rectangle "01 Mutex\nQueueDefinition\nuxQueueType = mutex" as mutex
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rectangle "02 LowTask\nbase priority 1\neffective priority 1 → 3" as low
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rectangle "03 HighTask\npriority 3\nblocked on mutex" as high
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rectangle "04 MediumTask\npriority 2\nReady, not executed" as medium
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rectangle "05 protected value\n1 → 2" as resource
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low --> mutex : owns
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high ..> mutex : waits forever
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mutex --> low : inherits 3
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medium ..> low : cannot preempt 3
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low --> resource : guarded write 1
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high --> resource : guarded write 2
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@enduml
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