1 files changed, 164 insertions, 0 deletions
diff --git a/metis/ccnx/forwarder/metis/processor/metis_PitEntry.c b/metis/ccnx/forwarder/metis/processor/metis_PitEntry.c
new file mode 100644
index 00000000..4b65960b
--- /dev/null
+++ b/metis/ccnx/forwarder/metis/processor/metis_PitEntry.c
@@ -0,0 +1,164 @@
+/*
+ * 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);
+}