1 files changed, 129 insertions, 0 deletions
diff --git a/hicn-light/src/io/addressPair.c b/hicn-light/src/io/addressPair.c
new file mode 100755
index 000000000..5d2017a3d
--- /dev/null
+++ b/hicn-light/src/io/addressPair.c
@@ -0,0 +1,129 @@
+/*
+ * 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_Hash.h>
+#include <parc/algol/parc_Memory.h>
+#include <parc/algol/parc_Object.h>
+#include <parc/assert/parc_Assert.h>
+#include <src/io/addressPair.h>
+
+struct address_pair {
+  Address *local;
+  Address *remote;
+};
+
+static void _addressPair_Destroy(AddressPair **addressPairPtr) {
+  AddressPair *pair = *addressPairPtr;
+
+  addressDestroy(&pair->local);
+  addressDestroy(&pair->remote);
+}
+
+parcObject_ExtendPARCObject(AddressPair, _addressPair_Destroy, NULL,
+                            addressPair_ToString, addressPair_Equals, NULL,
+                            addressPair_HashCode, NULL);
+
+parcObject_ImplementAcquire(addressPair, AddressPair);
+
+parcObject_ImplementRelease(addressPair, AddressPair);
+
+AddressPair *addressPair_Create(const Address *local, const Address *remote) {
+  parcAssertNotNull(local, "Parameter local must be non-null");
+  parcAssertNotNull(remote, "Parameter remote must be non-null");
+
+  AddressPair *pair = parcObject_CreateInstance(AddressPair);
+  parcAssertNotNull(pair, "Got null from parcObject_Create()");
+
+  pair->local = addressCopy(local);
+  pair->remote = addressCopy(remote);
+
+  return pair;
+}
+
+bool addressPair_Equals(const AddressPair *a, const AddressPair *b) {
+  if (a == b) {
+    return true;
+  }
+  if (a == NULL || b == NULL) {
+    return false;
+  }
+
+  if (addressEquals(a->local, b->local)) {
+    if (addressEquals(a->remote, b->remote)) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+bool addressPair_EqualsAddresses(const AddressPair *a, const Address *local,
+                                 const Address *remote) {
+  if (a == NULL || local == NULL || remote == NULL) {
+    return false;
+  }
+
+  if (addressEquals(a->local, local)) {
+    if (addressEquals(a->remote, remote)) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+char *addressPair_ToString(const AddressPair *pair) {
+  parcAssertNotNull(pair, "Parameter pair must be non-null");
+
+  char *local = addressToString(pair->local);
+  char *remote = addressToString(pair->remote);
+
+  char *output;
+  int failure = asprintf(&output, "{ .local=%s, .remote=%s }", local, remote);
+  parcAssertTrue(failure > -1, "Error on asprintf");
+
+  parcMemory_Deallocate((void **)&local);
+  parcMemory_Deallocate((void **)&remote);
+
+  return output;
+}
+
+const Address *addressPair_GetLocal(const AddressPair *pair) {
+  parcAssertNotNull(pair, "Parameter pair must be non-null");
+  return pair->local;
+}
+
+const Address *addressPair_GetRemote(const AddressPair *pair) {
+  parcAssertNotNull(pair, "Parameter pair must be non-null");
+  return pair->remote;
+}
+
+/**
+ * @function addressPair_HashCode
+ * @abstract Hash useful for tables.  Consistent with Equals.
+ * @discussion
+ *   Returns a non-cryptographic hash that is consistent with equals.  That is,
+ *   if a == b, then hash(a) == hash(b).
+ *
+ */
+PARCHashCode addressPair_HashCode(const AddressPair *pair) {
+  PARCHashCode hashpair[2];
+  hashpair[0] = addressHashCode(pair->local);
+  hashpair[1] = addressHashCode(pair->remote);
+  return parcHashCode_Hash((const uint8_t *)hashpair, sizeof(hashpair));
+}