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view src/spinlock.h @ 94:d876c9a65239 default tip
impl mac os target
author | anatofuz <anatofuz@cr.ie.u-ryukyu.ac.jp> |
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date | Wed, 23 Oct 2019 14:31:38 +0900 |
parents | 83c23a36980d |
children |
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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. };