2006-09-07 16:12:30 +02:00
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// Mutual exclusion lock.
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2006-07-12 11:10:25 +02:00
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struct spinlock {
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2009-08-31 08:02:08 +02:00
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uint locked; // Is the lock held?
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2006-09-07 16:12:30 +02:00
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// For debugging:
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2009-08-31 08:02:08 +02:00
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char *name; // Name of lock.
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struct cpu *cpu; // The cpu holding the lock.
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uint pcs[10]; // The call stack (an array of program counters)
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// that locked the lock.
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2006-07-12 11:10:25 +02:00
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};
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2007-08-28 07:00:39 +02:00
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