From bac3da61644515f05663789b122554dc77549286 Mon Sep 17 00:00:00 2001 From: Luca Muscariello 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 --- hicn-light/src/io/addressPair.c | 129 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 129 insertions(+) create mode 100755 hicn-light/src/io/addressPair.c (limited to 'hicn-light/src/io/addressPair.c') 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 +#include + +#include +#include +#include +#include +#include + +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)); +} -- cgit 1.2.3-korg