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| author | rsc <rsc> | 2006-09-07 14:12:30 +0000 |
|---|---|---|
| committer | rsc <rsc> | 2006-09-07 14:12:30 +0000 |
| commit | 31085bb4166c18b3dee059160d64b4edd7c5e2f4 (patch) | |
| tree | d3b166a2c39f77e06e7104659b537521282f9260 /spinlock.h | |
| parent | 7e019461c8bf0afbe73f959ca3394cce832501fd (diff) | |
| download | xv6-labs-31085bb4166c18b3dee059160d64b4edd7c5e2f4.tar.gz xv6-labs-31085bb4166c18b3dee059160d64b4edd7c5e2f4.tar.bz2 xv6-labs-31085bb4166c18b3dee059160d64b4edd7c5e2f4.zip | |
more comments
Diffstat (limited to 'spinlock.h')
| -rw-r--r-- | spinlock.h | 12 |
1 files changed, 8 insertions, 4 deletions
@@ -1,6 +1,10 @@ +// Mutual exclusion lock. struct spinlock { - char *name; - uint locked; - int cpu; - uint pcs[10]; + uint locked; // Is the lock held? + + // For debugging: + char *name; // Name of lock. + int cpu; // The number of the cpu holding the lock. + uint pcs[10]; // The call stack (an array of program counters) + // that locked the lock. }; |