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This commit is contained in:
Andreas Gustafsson 2000-09-08 21:25:21 +00:00
parent 7ec4367f3d
commit e881887f18
1 changed files with 10 additions and 1 deletions
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11
lib/isc/include/isc/rwlock.h
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@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: rwlock.h,v 1.15 2000/08/30 21:24:57 marka Exp $ */
/* $Id: rwlock.h,v 1.16 2000/09/08 21:25:21 gson Exp $ */
#ifndef ISC_RWLOCK_H
#define ISC_RWLOCK_H 1
@ -41,8 +41,17 @@ struct isc_rwlock {
isc_condition_t readable;
isc_condition_t writeable;
isc_rwlocktype_t type;
/* The number of threads that have the lock. */
unsigned int active;
/*
* The number of lock grants made since the lock was last switched
* from reading to writing or vice versa; used in determining
* when the quota is reached and it is time to switch.
*/
unsigned int granted;
unsigned int readers_waiting;
unsigned int writers_waiting;
unsigned int read_quota;