upstream/bind9
1
0
Fork 0
mirror of https://github.com/isc-projects/bind9.git synced 2026-06-08 23:42:06 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

lib/dns/lib.c: use isc_refcount_t

Browse source
This commit is contained in:
Ondřej Surý 2019-05-20 16:41:36 +02:00 committed by Witold Kręcicki
parent 3dece71b91
commit 8a128151f9
1 changed files with 13 additions and 21 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

34
lib/dns/lib.c
View file

@ -18,6 +18,7 @@
#include <isc/mem.h>
#include <isc/mutex.h>
#include <isc/once.h>
#include <isc/refcount.h>
#include <isc/util.h>
#include <dns/db.h>
@ -43,8 +44,7 @@ static isc_once_t init_once = ISC_ONCE_INIT;
static isc_mem_t *dns_g_mctx = NULL;
static dns_dbimplementation_t *dbimp = NULL;
static bool initialize_done = false;
static isc_mutex_t reflock;
static unsigned int references = 0;
static isc_refcount_t references = 0;
static void
initialize(void) {
@ -64,8 +64,6 @@ initialize(void) {
if (result != ISC_R_SUCCESS)
goto cleanup_db;
isc_mutex_init(&reflock);
initialize_done = true;
return;
@ -93,29 +91,23 @@ dns_lib_init(void) {
if (!initialize_done)
return (ISC_R_FAILURE);
LOCK(&reflock);
references++;
UNLOCK(&reflock);
isc_refcount_increment(&references);
return (ISC_R_SUCCESS);
}
void
dns_lib_shutdown(void) {
bool cleanup_ok = false;
if (isc_refcount_decrement(&references) == 1) {
dst_lib_destroy();
LOCK(&reflock);
if (--references == 0)
cleanup_ok = true;
UNLOCK(&reflock);
isc_refcount_destroy(&references);
if (!cleanup_ok)
return;
dst_lib_destroy();
if (dbimp != NULL)
dns_ecdb_unregister(&dbimp);
if (dns_g_mctx != NULL)
isc_mem_detach(&dns_g_mctx);
if (dbimp != NULL) {
dns_ecdb_unregister(&dbimp);
}
if (dns_g_mctx != NULL) {
isc_mem_detach(&dns_g_mctx);
}
}
}