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Protect global init_count variable in rbtdb.c by making it atomic

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This commit is contained in:
Ondřej Surý
2019-05-14 00:59:36 +07:00
committed by Ondřej Surý
parent b104a9bc50
commit 00807c03af
1 changed files with 4 additions and 4 deletions
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8
lib/dns/rbtdb.c
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@@ -702,7 +702,7 @@ static char FILE_VERSION[32] = "\0";
* that indicates that the database does not implement cyclic * that indicates that the database does not implement cyclic
* processing. * processing.
*/ */
static unsigned int init_count; static atomic_uint_fast32_t init_count;
/* /*
* Locking * Locking
@@ -6486,7 +6486,7 @@ addrdataset(dns_db_t *db, dns_dbnode_t *node, dns_dbversion_t *version,
newheader->attributes |= RDATASET_ATTR_ZEROTTL; newheader->attributes |= RDATASET_ATTR_ZEROTTL;
newheader->noqname = NULL; newheader->noqname = NULL;
newheader->closest = NULL; newheader->closest = NULL;
newheader->count = init_count++; newheader->count = atomic_fetch_add(&init_count, 1);
newheader->trust = rdataset->trust; newheader->trust = rdataset->trust;
newheader->last_used = now; newheader->last_used = now;
newheader->node = rbtnode; newheader->node = rbtnode;
@@ -6673,7 +6673,7 @@ subtractrdataset(dns_db_t *db, dns_dbnode_t *node, dns_dbversion_t *version,
newheader->trust = 0; newheader->trust = 0;
newheader->noqname = NULL; newheader->noqname = NULL;
newheader->closest = NULL; newheader->closest = NULL;
newheader->count = init_count++; newheader->count = atomic_fetch_add(&init_count, 1);
newheader->last_used = 0; newheader->last_used = 0;
newheader->node = rbtnode; newheader->node = rbtnode;
if ((rdataset->attributes & DNS_RDATASETATTR_RESIGN) != 0) { if ((rdataset->attributes & DNS_RDATASETATTR_RESIGN) != 0) {
@@ -7057,7 +7057,7 @@ loading_addrdataset(void *arg, const dns_name_t *name,
newheader->serial = 1; newheader->serial = 1;
newheader->noqname = NULL; newheader->noqname = NULL;
newheader->closest = NULL; newheader->closest = NULL;
newheader->count = init_count++; newheader->count = atomic_fetch_add(&init_count, 1);
newheader->last_used = 0; newheader->last_used = 0;
newheader->node = node; newheader->node = node;
setownercase(newheader, name); setownercase(newheader, name);