diff options
Diffstat (limited to 'metis/ccnx/forwarder/metis/processor/metis_ContentStoreEntry.c')
-rw-r--r-- | metis/ccnx/forwarder/metis/processor/metis_ContentStoreEntry.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/metis/ccnx/forwarder/metis/processor/metis_ContentStoreEntry.c b/metis/ccnx/forwarder/metis/processor/metis_ContentStoreEntry.c new file mode 100644 index 00000000..cefc547a --- /dev/null +++ b/metis/ccnx/forwarder/metis/processor/metis_ContentStoreEntry.c @@ -0,0 +1,91 @@ +/* + * Copyright (c) 2017 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <config.h> +#include <stdio.h> + +#include <parc/algol/parc_Memory.h> +#include <ccnx/forwarder/metis/processor/metis_ContentStoreEntry.h> + +#include <LongBow/runtime.h> + +struct metis_content_store_entry { + MetisMessage *message; + MetisLruListEntry *lruEntry; + unsigned refcount; +}; + +MetisContentStoreEntry * +metisContentStoreEntry_Create(MetisMessage *objectMessage, MetisLruList *lruList) +{ + assertNotNull(objectMessage, "Parameter objectMessage must be non-null"); + + MetisContentStoreEntry *entry = parcMemory_AllocateAndClear(sizeof(MetisContentStoreEntry)); + assertNotNull(entry, "parcMemory_AllocateAndClear(%zu) returned NULL", sizeof(MetisContentStoreEntry)); + entry->message = metisMessage_Acquire(objectMessage); + entry->refcount = 1; + entry->lruEntry = metisLruList_NewHeadEntry(lruList, entry); + + return entry; +} + +MetisContentStoreEntry * +metisContentStoreEntry_Acquire(MetisContentStoreEntry *original) +{ + assertNotNull(original, "Parameter must be non-null"); + original->refcount++; + return original; +} + +void +metisContentStoreEntry_Release(MetisContentStoreEntry **entryPtr) +{ + assertNotNull(entryPtr, "Parameter must be non-null double pointer"); + assertNotNull(*entryPtr, "Parameter must dereference to non-null pointer"); + + MetisContentStoreEntry *entry = *entryPtr; + assertTrue(entry->refcount > 0, "Illegal state: has refcount of 0"); + + entry->refcount--; + if (entry->refcount == 0) { + metisLruList_EntryDestroy(&entry->lruEntry); + metisMessage_Release(&entry->message); + parcMemory_Deallocate((void **) &entry); + } + *entryPtr = NULL; +} + +/** + * @function metisContentStoreEntry_GetMessage + * @abstract Returns a reference counted copy of the message. + * @discussion + * Caller must use <code>metisMessage_Release()</code> on the returned message + * + * @param <#param1#> + * @return <#return#> + */ +MetisMessage * +metisContentStoreEntry_GetMessage(MetisContentStoreEntry *storeEntry) +{ + assertNotNull(storeEntry, "Parameter must be non-null"); + return metisMessage_Acquire(storeEntry->message); +} + +void +metisContentStoreEntry_MoveToHead(MetisContentStoreEntry *storeEntry) +{ + assertNotNull(storeEntry, "Parameter must be non-null"); + metisLruList_EntryMoveToHead(storeEntry->lruEntry); +} |