annotate src/spinlock.h @ 173:7c200a8328fa
fix user malloc and spinlock redefinition
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kono |
| date |
Fri, 17 Jan 2020 14:30:07 +0900 |
| parents |
83c23a36980d |
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line source |
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1 // Mutual exclusion lock.
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173
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2 #ifndef SPINLOCK_H
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3 struct spinlock {
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4 uint locked; // Is the lock held?
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5
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6 // For debugging:
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7 char *name; // Name of lock.
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8 struct cpu *cpu; // The cpu holding the lock.
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9 uint pcs[10]; // The call stack (an array of program counters)
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10 // that locked the lock.
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11 };
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173
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12 #endif // SPINLOCK_H
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13 #define SPINLOCK_H
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