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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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This commit is contained in:
Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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126
security/nss/lib/ckfw/dbm/find.c Normal file
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "ckdbm.h"
static void
nss_dbm_mdFindObjects_Final(
NSSCKMDFindObjects *mdFindObjects,
NSSCKFWFindObjects *fwFindObjects,
NSSCKMDSession *mdSession,
NSSCKFWSession *fwSession,
NSSCKMDToken *mdToken,
NSSCKFWToken *fwToken,
NSSCKMDInstance *mdInstance,
NSSCKFWInstance *fwInstance)
{
nss_dbm_find_t *find = (nss_dbm_find_t *)mdFindObjects->etc;
/* Locks might have system resources associated */
(void)NSSCKFWMutex_Destroy(find->list_lock);
(void)NSSArena_Destroy(find->arena);
}
static NSSCKMDObject *
nss_dbm_mdFindObjects_Next(
NSSCKMDFindObjects *mdFindObjects,
NSSCKFWFindObjects *fwFindObjects,
NSSCKMDSession *mdSession,
NSSCKFWSession *fwSession,
NSSCKMDToken *mdToken,
NSSCKFWToken *fwToken,
NSSCKMDInstance *mdInstance,
NSSCKFWInstance *fwInstance,
NSSArena *arena,
CK_RV *pError)
{
nss_dbm_find_t *find = (nss_dbm_find_t *)mdFindObjects->etc;
struct nss_dbm_dbt_node *node;
nss_dbm_object_t *object;
NSSCKMDObject *rv;
while (1) {
/* Lock */
{
*pError = NSSCKFWMutex_Lock(find->list_lock);
if (CKR_OK != *pError) {
return (NSSCKMDObject *)NULL;
}
node = find->found;
if ((struct nss_dbm_dbt_node *)NULL != node) {
find->found = node->next;
}
*pError = NSSCKFWMutex_Unlock(find->list_lock);
if (CKR_OK != *pError) {
/* screwed now */
return (NSSCKMDObject *)NULL;
}
}
if ((struct nss_dbm_dbt_node *)NULL == node) {
break;
}
if (nss_dbm_db_object_still_exists(node->dbt)) {
break;
}
}
if ((struct nss_dbm_dbt_node *)NULL == node) {
*pError = CKR_OK;
return (NSSCKMDObject *)NULL;
}
object = nss_ZNEW(arena, nss_dbm_object_t);
if ((nss_dbm_object_t *)NULL == object) {
*pError = CKR_HOST_MEMORY;
return (NSSCKMDObject *)NULL;
}
object->arena = arena;
object->handle = nss_ZNEW(arena, nss_dbm_dbt_t);
if ((nss_dbm_dbt_t *)NULL == object->handle) {
*pError = CKR_HOST_MEMORY;
return (NSSCKMDObject *)NULL;
}
object->handle->my_db = node->dbt->my_db;
object->handle->dbt.size = node->dbt->dbt.size;
object->handle->dbt.data = nss_ZAlloc(arena, node->dbt->dbt.size);
if ((void *)NULL == object->handle->dbt.data) {
*pError = CKR_HOST_MEMORY;
return (NSSCKMDObject *)NULL;
}
(void)memcpy(object->handle->dbt.data, node->dbt->dbt.data, node->dbt->dbt.size);
rv = nss_dbm_mdObject_factory(object, pError);
if ((NSSCKMDObject *)NULL == rv) {
return (NSSCKMDObject *)NULL;
}
return rv;
}
NSS_IMPLEMENT NSSCKMDFindObjects *
nss_dbm_mdFindObjects_factory(
nss_dbm_find_t *find,
CK_RV *pError)
{
NSSCKMDFindObjects *rv;
rv = nss_ZNEW(find->arena, NSSCKMDFindObjects);
if ((NSSCKMDFindObjects *)NULL == rv) {
*pError = CKR_HOST_MEMORY;
return (NSSCKMDFindObjects *)NULL;
}
rv->etc = (void *)find;
rv->Final = nss_dbm_mdFindObjects_Final;
rv->Next = nss_dbm_mdFindObjects_Next;
return rv;
}