diff options
Diffstat (limited to 'libccnx-common/ccnx/common/internal/ccnx_InterestReturnInterface.c')
-rwxr-xr-x | libccnx-common/ccnx/common/internal/ccnx_InterestReturnInterface.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/libccnx-common/ccnx/common/internal/ccnx_InterestReturnInterface.c b/libccnx-common/ccnx/common/internal/ccnx_InterestReturnInterface.c new file mode 100755 index 00000000..2c9aa111 --- /dev/null +++ b/libccnx-common/ccnx/common/internal/ccnx_InterestReturnInterface.c @@ -0,0 +1,55 @@ +/* + * 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 <ccnx/common/internal/ccnx_InterestReturnInterface.h> + +#include <LongBow/runtime.h> + +CCNxInterestReturnInterface * +ccnxInterestReturnInterface_GetInterface(const CCNxTlvDictionary *dictionary) +{ + assertTrue(ccnxTlvDictionary_IsInterestReturn(dictionary), "Expected an InterestReturn"); + + CCNxInterestReturnInterface *impl = ccnxTlvDictionary_GetMessageInterface(dictionary); + + if (!impl) { + // If we're here, we need to update the interface pointer. Break the const. + // We're not changing data values, just initializing the Interface pointer. + + // Figure out what the typeInterface should be, based on the attributes we know. + int schemaVersion = ccnxTlvDictionary_GetSchemaVersion(dictionary); + + switch (schemaVersion) { + case CCNxTlvDictionary_SchemaVersion_V0: + trapUnexpectedState("ccnxInterestReturnInterface_GetInterface() not implemented for V0"); + case CCNxTlvDictionary_SchemaVersion_V1: + impl = &CCNxInterestReturnFacadeV1_Implementation; + break; + default: + trapUnexpectedState("Unknown SchemaVersion encountered in ccnxInterestReturnInterface_GetInterface()"); + break; + } + + if (impl) { + ccnxTlvDictionary_SetMessageInterface((CCNxTlvDictionary *) dictionary, impl); // break the const. + } + } + + return impl; +} + |