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Additional purge changes for rev 1.120, don't keep the current thread

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busy unnecessarily
This commit is contained in:
Howard Chu 2006-07-12 01:55:21 +00:00
parent 9a35796594
commit bab03f6d5c
1 changed files with 6 additions and 9 deletions
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15
servers/slapd/back-bdb/cache.c
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@ -556,7 +556,9 @@ bdb_cache_lru_add(
lockp = NULL;
}
ldap_pvt_thread_mutex_lock( &bdb->bi_cache.lru_tail_mutex );
/* Don't bother if we can't get the lock */
if ( ldap_pvt_thread_mutex_trylock( &bdb->bi_cache.lru_tail_mutex ) )
return;
/* Look for an unused entry to remove */
for (elru = bdb->bi_cache.c_lrutail; elru; elru = elprev ) {
@ -568,7 +570,6 @@ bdb_cache_lru_add(
if ( bdb_cache_entry_db_lock( bdb->bi_dbenv,
bdb->bi_cache.c_locker, elru, 1, 1, lockp ) == 0 ) {
int stop = 0;
/* If this node is in the process of linking into the cache,
* or this node is being deleted, skip it.
@ -608,16 +609,12 @@ bdb_cache_lru_add(
}
bdb_cache_entry_db_unlock( bdb->bi_dbenv, lockp );
if ( count == bdb->bi_cache.c_minfree ) {
if ( count >= bdb->bi_cache.c_minfree ) {
ldap_pvt_thread_rdwr_wlock( &bdb->bi_cache.c_rwlock );
bdb->bi_cache.c_cursize -= bdb->bi_cache.c_minfree;
if ( bdb->bi_cache.c_maxsize - bdb->bi_cache.c_cursize >=
bdb->bi_cache.c_minfree )
stop = 1;
count = 0;
bdb->bi_cache.c_cursize -= count;
ldap_pvt_thread_rdwr_wunlock( &bdb->bi_cache.c_rwlock );
break;
}
if (stop) break;
}
}