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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_PitEntry.h>
#include <ccnx/forwarder/metis/core/metis_NumberSet.h>
#include <LongBow/runtime.h>
struct metis_pit_entry {
MetisMessage *message;
MetisNumberSet *ingressIdSet;
MetisNumberSet *egressIdSet;
MetisFibEntry *fibEntry;
MetisTicks creationTime;
MetisTicks expiryTime;
unsigned refcount;
};
MetisPitEntry *
metisPitEntry_Create(MetisMessage *message, MetisTicks expiryTime, MetisTicks creationTime)
{
MetisPitEntry *pitEntry = parcMemory_AllocateAndClear(sizeof(MetisPitEntry));
assertNotNull(pitEntry, "parcMemory_AllocateAndClear(%zu) returned NULL", sizeof(MetisPitEntry));
pitEntry->message = message;
pitEntry->ingressIdSet = metisNumberSet_Create();
pitEntry->egressIdSet = metisNumberSet_Create();
pitEntry->refcount = 1;
// add the message to the reverse path set
metisNumberSet_Add(pitEntry->ingressIdSet, metisMessage_GetIngressConnectionId(message));
// hack in a 4-second timeout
pitEntry->expiryTime = expiryTime;
pitEntry->fibEntry = NULL;
pitEntry->creationTime = creationTime;
return pitEntry;
}
void
metisPitEntry_Release(MetisPitEntry **pitEntryPtr)
{
assertNotNull(pitEntryPtr, "Parameter must be non-null double pointer");
assertNotNull(*pitEntryPtr, "Parameter must dereference to non-null pointer");
MetisPitEntry *pitEntry = *pitEntryPtr;
trapIllegalValueIf(pitEntry->refcount == 0, "Illegal state: has refcount of 0");
pitEntry->refcount--;
if (pitEntry->refcount == 0) {
if(pitEntry->fibEntry != NULL){
metisFibEntry_Release(&pitEntry->fibEntry);
}
metisNumberSet_Release(&pitEntry->ingressIdSet);
metisNumberSet_Release(&pitEntry->egressIdSet);
metisMessage_Release(&pitEntry->message);
parcMemory_Deallocate((void **) &pitEntry);
}
*pitEntryPtr = NULL;
}
MetisPitEntry *
metisPitEntry_Acquire(MetisPitEntry *original)
{
assertNotNull(original, "Parameter original must be non-null");
original->refcount++;
return original;
}
void
metisPitEntry_AddIngressId(MetisPitEntry *pitEntry, unsigned ingressId)
{
assertNotNull(pitEntry, "Parameter pitEntry must be non-null");
metisNumberSet_Add(pitEntry->ingressIdSet, ingressId);
}
void
metisPitEntry_AddEgressId(MetisPitEntry *pitEntry, unsigned egressId)
{
assertNotNull(pitEntry, "Parameter pitEntry must be non-null");
metisNumberSet_Add(pitEntry->egressIdSet, egressId);
}
void
metisPitEntry_AddFibEntry(MetisPitEntry *pitEntry, MetisFibEntry *fibEntry)
{
assertNotNull(pitEntry, "Parameter pitEntry must be non-null");
assertNotNull(fibEntry, "Parameter fibEntry must be non-null");
//the fibEntry should be always the same for all the interests in the same pitEntry
if(pitEntry->fibEntry == NULL){
metisFibEntry_Acquire(fibEntry);
pitEntry->fibEntry = fibEntry;
}
}
MetisFibEntry *
metisPitEntry_GetFibEntry(MetisPitEntry *pitEntry)
{
assertNotNull(pitEntry, "Parameter pitEntry must be non-null");
return pitEntry->fibEntry;
}
MetisTicks
metisPitEntry_GetExpiryTime(const MetisPitEntry *pitEntry)
{
assertNotNull(pitEntry, "Parameter pitEntry must be non-null");
return pitEntry->expiryTime;
}
MetisTicks
metisPitEntry_GetCreationTime(const MetisPitEntry *pitEntry)
{
assertNotNull(pitEntry, "Parameter pitEntry must be non-null");
return pitEntry->creationTime;
}
void
metisPitEntry_SetExpiryTime(MetisPitEntry *pitEntry, MetisTicks expiryTime)
{
assertNotNull(pitEntry, "Parameter pitEntry must be non-null");
pitEntry->expiryTime = expiryTime;
}
const MetisNumberSet *
metisPitEntry_GetIngressSet(const MetisPitEntry *pitEntry)
{
assertNotNull(pitEntry, "Parameter pitEntry must be non-null");
return pitEntry->ingressIdSet;
}
const MetisNumberSet *
metisPitEntry_GetEgressSet(const MetisPitEntry *pitEntry)
{
assertNotNull(pitEntry, "Parameter pitEntry must be non-null");
return pitEntry->egressIdSet;
}
MetisMessage *
metisPitEntry_GetMessage(const MetisPitEntry *pitEntry)
{
assertNotNull(pitEntry, "Parameter pitEntry must be non-null");
return metisMessage_Acquire(pitEntry->message);
}
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