michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "ckdbm.h"
michael@0: 
michael@0: static void
michael@0: nss_dbm_mdFindObjects_Final
michael@0: (
michael@0:   NSSCKMDFindObjects *mdFindObjects,
michael@0:   NSSCKFWFindObjects *fwFindObjects,
michael@0:   NSSCKMDSession *mdSession,
michael@0:   NSSCKFWSession *fwSession,
michael@0:   NSSCKMDToken *mdToken,
michael@0:   NSSCKFWToken *fwToken,
michael@0:   NSSCKMDInstance *mdInstance,
michael@0:   NSSCKFWInstance *fwInstance
michael@0: )
michael@0: {
michael@0:   nss_dbm_find_t *find = (nss_dbm_find_t *)mdFindObjects->etc;
michael@0: 
michael@0:   /* Locks might have system resources associated */
michael@0:   (void)NSSCKFWMutex_Destroy(find->list_lock);
michael@0:   (void)NSSArena_Destroy(find->arena);
michael@0: }
michael@0: 
michael@0: 
michael@0: static NSSCKMDObject *
michael@0: nss_dbm_mdFindObjects_Next
michael@0: (
michael@0:   NSSCKMDFindObjects *mdFindObjects,
michael@0:   NSSCKFWFindObjects *fwFindObjects,
michael@0:   NSSCKMDSession *mdSession,
michael@0:   NSSCKFWSession *fwSession,
michael@0:   NSSCKMDToken *mdToken,
michael@0:   NSSCKFWToken *fwToken,
michael@0:   NSSCKMDInstance *mdInstance,
michael@0:   NSSCKFWInstance *fwInstance,
michael@0:   NSSArena *arena,
michael@0:   CK_RV *pError
michael@0: )
michael@0: {
michael@0:   nss_dbm_find_t *find = (nss_dbm_find_t *)mdFindObjects->etc;
michael@0:   struct nss_dbm_dbt_node *node;
michael@0:   nss_dbm_object_t *object;
michael@0:   NSSCKMDObject *rv;
michael@0: 
michael@0:   while(1) {
michael@0:     /* Lock */
michael@0:     {
michael@0:       *pError = NSSCKFWMutex_Lock(find->list_lock);
michael@0:       if( CKR_OK != *pError ) {
michael@0:         return (NSSCKMDObject *)NULL;
michael@0:       }
michael@0:       
michael@0:       node = find->found;
michael@0:       if( (struct nss_dbm_dbt_node *)NULL != node ) {
michael@0:         find->found = node->next;
michael@0:       }
michael@0:       
michael@0:       *pError = NSSCKFWMutex_Unlock(find->list_lock);
michael@0:       if( CKR_OK != *pError ) {
michael@0:         /* screwed now */
michael@0:         return (NSSCKMDObject *)NULL;
michael@0:       }
michael@0:     }
michael@0: 
michael@0:     if( (struct nss_dbm_dbt_node *)NULL == node ) {
michael@0:       break;
michael@0:     }
michael@0: 
michael@0:     if( nss_dbm_db_object_still_exists(node->dbt) ) {
michael@0:       break;
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   if( (struct nss_dbm_dbt_node *)NULL == node ) {
michael@0:     *pError = CKR_OK;
michael@0:     return (NSSCKMDObject *)NULL;
michael@0:   }
michael@0: 
michael@0:   object = nss_ZNEW(arena, nss_dbm_object_t);
michael@0:   if( (nss_dbm_object_t *)NULL == object ) {
michael@0:     *pError = CKR_HOST_MEMORY;
michael@0:     return (NSSCKMDObject *)NULL;
michael@0:   }
michael@0: 
michael@0:   object->arena = arena;
michael@0:   object->handle = nss_ZNEW(arena, nss_dbm_dbt_t);
michael@0:   if( (nss_dbm_dbt_t *)NULL == object->handle ) {
michael@0:     *pError = CKR_HOST_MEMORY;
michael@0:     return (NSSCKMDObject *)NULL;
michael@0:   }
michael@0: 
michael@0:   object->handle->my_db = node->dbt->my_db;
michael@0:   object->handle->dbt.size = node->dbt->dbt.size;
michael@0:   object->handle->dbt.data = nss_ZAlloc(arena, node->dbt->dbt.size);
michael@0:   if( (void *)NULL == object->handle->dbt.data ) {
michael@0:     *pError = CKR_HOST_MEMORY;
michael@0:     return (NSSCKMDObject *)NULL;
michael@0:   }
michael@0: 
michael@0:   (void)memcpy(object->handle->dbt.data, node->dbt->dbt.data, node->dbt->dbt.size);
michael@0: 
michael@0:   rv = nss_dbm_mdObject_factory(object, pError);
michael@0:   if( (NSSCKMDObject *)NULL == rv ) {
michael@0:     return (NSSCKMDObject *)NULL;
michael@0:   }
michael@0: 
michael@0:   return rv;
michael@0: }
michael@0: 
michael@0: NSS_IMPLEMENT NSSCKMDFindObjects *
michael@0: nss_dbm_mdFindObjects_factory
michael@0: (
michael@0:   nss_dbm_find_t *find,
michael@0:   CK_RV *pError
michael@0: )
michael@0: {
michael@0:   NSSCKMDFindObjects *rv;
michael@0: 
michael@0:   rv = nss_ZNEW(find->arena, NSSCKMDFindObjects);
michael@0:   if( (NSSCKMDFindObjects *)NULL == rv ) {
michael@0:     *pError = CKR_HOST_MEMORY;
michael@0:     return (NSSCKMDFindObjects *)NULL;
michael@0:   }
michael@0: 
michael@0:   rv->etc = (void *)find;
michael@0:   rv->Final = nss_dbm_mdFindObjects_Final;
michael@0:   rv->Next = nss_dbm_mdFindObjects_Next;
michael@0: 
michael@0:   return rv;
michael@0: }