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annotate uprogs/spinlock.h @ 0:ed10291ff195

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author mir3636
date Sun, 06 Jan 2019 19:27:03 +0900
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1 // Mutual exclusion lock.
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2 struct spinlock {
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3 uint locked; // Is the lock held?
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4
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5 // For debugging:
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6 char *name; // Name of lock.
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7 struct cpu *cpu; // The cpu holding the lock.
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8 uint pcs[10]; // The call stack (an array of program counters)
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9 // that locked the lock.
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10 };
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