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/*
* 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);
}
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