1 files changed, 132 insertions, 0 deletions
diff --git a/hicn-light/src/io/listenerSet.c b/hicn-light/src/io/listenerSet.c
new file mode 100755
index 000000000..a890cd5b8
--- /dev/null
+++ b/hicn-light/src/io/listenerSet.c
@@ -0,0 +1,132 @@
+/*
+ * 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_ArrayList.h>
+#include <parc/algol/parc_Memory.h>
+#include <parc/assert/parc_Assert.h>
+#include <src/io/listenerSet.h>
+
+struct listener_set {
+  PARCArrayList *listOfListeners;
+};
+
+static void listenerSet_DestroyListenerOps(void **opsPtr) {
+  ListenerOps *ops = *((ListenerOps **)opsPtr);
+  ops->destroy(&ops);
+}
+
+ListenerSet *listenerSet_Create() {
+  ListenerSet *set = parcMemory_AllocateAndClear(sizeof(ListenerSet));
+  parcAssertNotNull(set, "parcMemory_AllocateAndClear(%zu) returned NULL",
+                    sizeof(ListenerSet));
+  set->listOfListeners = parcArrayList_Create(listenerSet_DestroyListenerOps);
+
+  return set;
+}
+
+void listenerSet_Destroy(ListenerSet **setPtr) {
+  parcAssertNotNull(setPtr, "Parameter must be non-null double pointer");
+  parcAssertNotNull(*setPtr, "Parameter must dereference to non-null pointer");
+
+  ListenerSet *set = *setPtr;
+  parcArrayList_Destroy(&set->listOfListeners);
+  parcMemory_Deallocate((void **)&set);
+  *setPtr = NULL;
+}
+
+/**
+ * @function listenerSet_Add
+ * @abstract Adds the listener to the set
+ * @discussion
+ *     Unique set based on pair (EncapType, localAddress)
+ *
+ * @param <#param1#>
+ * @return <#return#>
+ */
+bool listenerSet_Add(ListenerSet *set, ListenerOps *ops) {
+  parcAssertNotNull(set, "Parameter set must be non-null");
+  parcAssertNotNull(ops, "Parameter ops must be non-null");
+
+  int opsEncap = ops->getEncapType(ops);
+  const Address *opsAddress = ops->getListenAddress(ops);
+
+  // make sure its not in the set
+  size_t length = parcArrayList_Size(set->listOfListeners);
+  for (size_t i = 0; i < length; i++) {
+    ListenerOps *entry = parcArrayList_Get(set->listOfListeners, i);
+
+    int entryEncap = entry->getEncapType(entry);
+    const Address *entryAddress = entry->getListenAddress(entry);
+
+    if (opsEncap == entryEncap && addressEquals(opsAddress, entryAddress)) {
+      // duplicate
+      return false;
+    }
+  }
+
+  parcArrayList_Add(set->listOfListeners, ops);
+  return true;
+}
+
+size_t listenerSet_Length(const ListenerSet *set) {
+  parcAssertNotNull(set, "Parameter set must be non-null");
+  return parcArrayList_Size(set->listOfListeners);
+}
+
+/**
+ * Returns the listener at the given index
+ *
+ * <#Paragraphs Of Explanation#>
+ *
+ * @param [in] set An allocated listener set
+ * @param [in] index The index position (0 <= index < listenerSet_Count)
+ *
+ * @retval non-null The listener at index
+ * @retval null An error
+ *
+ * Example:
+ * @code
+ * <#example#>
+ * @endcode
+ */
+ListenerOps *listenerSet_Get(const ListenerSet *set, size_t index) {
+  parcAssertNotNull(set, "Parameter set must be non-null");
+  return parcArrayList_Get(set->listOfListeners, index);
+}
+
+ListenerOps *listenerSet_Find(const ListenerSet *set, EncapType encapType,
+                              const Address *localAddress) {
+  parcAssertNotNull(set, "Parameter set must be non-null");
+  parcAssertNotNull(localAddress, "Parameter localAddress must be non-null");
+
+  ListenerOps *match = NULL;
+
+  for (size_t i = 0; i < parcArrayList_Size(set->listOfListeners) && !match;
+       i++) {
+    ListenerOps *ops = parcArrayList_Get(set->listOfListeners, i);
+    parcAssertNotNull(ops, "Got null listener ops at index %zu", i);
+
+    if (ops->getEncapType(ops) == encapType) {
+      if (addressEquals(localAddress, ops->getListenAddress(ops))) {
+        match = ops;
+      }
+    }
+  }
+
+  return match;
+}