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enforce a minimum cache size of 2mb

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This commit is contained in:
David Lawrence
2001-05-31 10:53:42 +00:00
parent 50b7860fff
commit ed8daea264
1 changed files with 5 additions and 6 deletions
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11
lib/dns/cache.c
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@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: cache.c,v 1.37 2001/04/11 22:15:00 tale Exp $ */
/* $Id: cache.c,v 1.38 2001/05/31 10:53:42 tale Exp $ */
#include <config.h>
@@ -793,12 +793,11 @@ dns_cache_setcachesize(dns_cache_t *cache, isc_uint32_t size) {
REQUIRE(VALID_CACHE(cache));
/*
* Impose a minumum cache size -- this should perhaps be larger,
* but for now is just meant ensure that hiwater and lowater are
* less than the size.
* Impose a minumum cache size; pathological things happen if there
* is too little room.
*/
if (size != 0 && size < 8)
size = 8;
if (size != 0 && size < 2097152)
size = 2097152; /* 2mb */
hiwater = size - (size >> 3); /* ~(7/8) */
lowater = size - (size >> 2); /* ~(3/4) */