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view src/spinlock.h @ 58:f1b965f53d3b
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author | tobaru |
---|---|
date | Fri, 05 Jul 2019 16:39:01 +0900 |
parents | 83c23a36980d |
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// Mutual exclusion lock. struct spinlock { uint locked; // Is the lock held? // For debugging: char *name; // Name of lock. struct cpu *cpu; // The cpu holding the lock. uint pcs[10]; // The call stack (an array of program counters) // that locked the lock. };