From bac3da61644515f05663789b122554dc77549286 Mon Sep 17 00:00:00 2001
From: Luca Muscariello <lumuscar+fdio@cisco.com>
Date: Thu, 17 Jan 2019 13:47:57 +0100
Subject: This is the first commit of the hicn project

Change-Id: I6f2544ad9b9f8891c88cc4bcce3cf19bd3cc863f
Signed-off-by: Luca Muscariello <lumuscar+fdio@cisco.com>
---
 hicn-light/src/processor/pitEntry.c | 142 ++++++++++++++++++++++++++++++++++++
 1 file changed, 142 insertions(+)
 create mode 100755 hicn-light/src/processor/pitEntry.c

(limited to 'hicn-light/src/processor/pitEntry.c')

diff --git a/hicn-light/src/processor/pitEntry.c b/hicn-light/src/processor/pitEntry.c
new file mode 100755
index 000000000..38103cb8e
--- /dev/null
+++ b/hicn-light/src/processor/pitEntry.c
@@ -0,0 +1,142 @@
+/*
+ * Copyright (c) 2017-2019 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 <src/config.h>
+#include <stdio.h>
+
+#include <parc/algol/parc_Memory.h>
+#include <src/core/numberSet.h>
+#include <src/processor/pitEntry.h>
+
+#include <parc/assert/parc_Assert.h>
+
+struct pit_entry {
+  Message *message;
+  NumberSet *ingressIdSet;
+  NumberSet *egressIdSet;
+
+  FibEntry *fibEntry;
+
+  Ticks creationTime;
+  Ticks expiryTime;
+
+  unsigned refcount;
+};
+
+PitEntry *pitEntry_Create(Message *message, Ticks expiryTime,
+                          Ticks creationTime) {
+  PitEntry *pitEntry = parcMemory_AllocateAndClear(sizeof(PitEntry));
+  parcAssertNotNull(pitEntry, "parcMemory_AllocateAndClear(%zu) returned NULL",
+                    sizeof(PitEntry));
+  pitEntry->message = message;
+  pitEntry->ingressIdSet = numberSet_Create();
+  pitEntry->egressIdSet = numberSet_Create();
+  pitEntry->refcount = 1;
+
+  // add the message to the reverse path set
+  numberSet_Add(pitEntry->ingressIdSet,
+                message_GetIngressConnectionId(message));
+
+  // hack in a 4-second timeout
+  pitEntry->expiryTime = expiryTime;
+  pitEntry->fibEntry = NULL;
+
+  pitEntry->creationTime = creationTime;
+  return pitEntry;
+}
+
+void pitEntry_Release(PitEntry **pitEntryPtr) {
+  parcAssertNotNull(pitEntryPtr, "Parameter must be non-null double pointer");
+  parcAssertNotNull(*pitEntryPtr,
+                    "Parameter must dereference to non-null pointer");
+
+  PitEntry *pitEntry = *pitEntryPtr;
+  parcTrapIllegalValueIf(pitEntry->refcount == 0,
+                         "Illegal state: has refcount of 0");
+
+  pitEntry->refcount--;
+  if (pitEntry->refcount == 0) {
+    if (pitEntry->fibEntry != NULL) {
+      fibEntry_Release(&pitEntry->fibEntry);
+    }
+    numberSet_Release(&pitEntry->ingressIdSet);
+    numberSet_Release(&pitEntry->egressIdSet);
+    message_Release(&pitEntry->message);
+    parcMemory_Deallocate((void **)&pitEntry);
+  }
+  *pitEntryPtr = NULL;
+}
+
+PitEntry *pitEntry_Acquire(PitEntry *original) {
+  parcAssertNotNull(original, "Parameter original must be non-null");
+  original->refcount++;
+  return original;
+}
+
+void pitEntry_AddIngressId(PitEntry *pitEntry, unsigned ingressId) {
+  parcAssertNotNull(pitEntry, "Parameter pitEntry must be non-null");
+  numberSet_Add(pitEntry->ingressIdSet, ingressId);
+}
+
+void pitEntry_AddEgressId(PitEntry *pitEntry, unsigned egressId) {
+  parcAssertNotNull(pitEntry, "Parameter pitEntry must be non-null");
+  numberSet_Add(pitEntry->egressIdSet, egressId);
+}
+
+void pitEntry_AddFibEntry(PitEntry *pitEntry, FibEntry *fibEntry) {
+  parcAssertNotNull(pitEntry, "Parameter pitEntry must be non-null");
+  parcAssertNotNull(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) {
+    fibEntry_Acquire(fibEntry);
+    pitEntry->fibEntry = fibEntry;
+  }
+}
+
+FibEntry *pitEntry_GetFibEntry(PitEntry *pitEntry) {
+  parcAssertNotNull(pitEntry, "Parameter pitEntry must be non-null");
+  return pitEntry->fibEntry;
+}
+
+Ticks pitEntry_GetExpiryTime(const PitEntry *pitEntry) {
+  parcAssertNotNull(pitEntry, "Parameter pitEntry must be non-null");
+  return pitEntry->expiryTime;
+}
+
+Ticks pitEntry_GetCreationTime(const PitEntry *pitEntry) {
+  parcAssertNotNull(pitEntry, "Parameter pitEntry must be non-null");
+  return pitEntry->creationTime;
+}
+
+void pitEntry_SetExpiryTime(PitEntry *pitEntry, Ticks expiryTime) {
+  parcAssertNotNull(pitEntry, "Parameter pitEntry must be non-null");
+  pitEntry->expiryTime = expiryTime;
+}
+
+const NumberSet *pitEntry_GetIngressSet(const PitEntry *pitEntry) {
+  parcAssertNotNull(pitEntry, "Parameter pitEntry must be non-null");
+  return pitEntry->ingressIdSet;
+}
+
+const NumberSet *pitEntry_GetEgressSet(const PitEntry *pitEntry) {
+  parcAssertNotNull(pitEntry, "Parameter pitEntry must be non-null");
+  return pitEntry->egressIdSet;
+}
+
+Message *pitEntry_GetMessage(const PitEntry *pitEntry) {
+  parcAssertNotNull(pitEntry, "Parameter pitEntry must be non-null");
+  return message_Acquire(pitEntry->message);
+}
-- 
cgit 1.2.3-korg