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Define and use new DNS_RDATASET_COUNT_UNDEFINED equals ISC_UINT32_MAX to make the code more readable

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This commit is contained in:
Ondřej Surý 2018-08-06 10:49:43 +02:00
parent afddc2781e
commit e80c26b22e
1 changed files with 8 additions and 4 deletions
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12
lib/dns/rdataset.c
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@ -48,6 +48,8 @@ dns_trust_totext(dns_trust_t trust) {
return (trustnames[trust]);
}
#define DNS_RDATASET_COUNT_UNDEFINED ISC_UINT32_MAX
void
dns_rdataset_init(dns_rdataset_t *rdataset) {
@ -66,7 +68,7 @@ dns_rdataset_init(dns_rdataset_t *rdataset) {
rdataset->trust = 0;
rdataset->covers = 0;
rdataset->attributes = 0;
rdataset->count = ISC_UINT32_MAX;
rdataset->count = DNS_RDATASET_COUNT_UNDEFINED;
rdataset->private1 = NULL;
rdataset->private2 = NULL;
rdataset->private3 = NULL;
@ -95,7 +97,7 @@ dns_rdataset_invalidate(dns_rdataset_t *rdataset) {
rdataset->trust = 0;
rdataset->covers = 0;
rdataset->attributes = 0;
rdataset->count = ISC_UINT32_MAX;
rdataset->count = DNS_RDATASET_COUNT_UNDEFINED;
rdataset->private1 = NULL;
rdataset->private2 = NULL;
rdataset->private3 = NULL;
@ -122,7 +124,7 @@ dns_rdataset_disassociate(dns_rdataset_t *rdataset) {
rdataset->trust = 0;
rdataset->covers = 0;
rdataset->attributes = 0;
rdataset->count = ISC_UINT32_MAX;
rdataset->count = DNS_RDATASET_COUNT_UNDEFINED;
rdataset->private1 = NULL;
rdataset->private2 = NULL;
rdataset->private3 = NULL;
@ -420,7 +422,9 @@ towiresorted(dns_rdataset_t *rdataset, const dns_name_t *owner_name,
j = 0;
}
if (ISC_UNLIKELY(want_cyclic) && (rdataset->count < ISC_UINT32_MAX)) {
if (ISC_UNLIKELY(want_cyclic) &&
(rdataset->count != DNS_RDATASET_COUNT_UNDEFINED))
{
j = rdataset->count % count;
} else { /* Otherwise, just start from beginning */
j = 0;