diff options
Diffstat (limited to 'hicn-light/src/processor/matchingRulesTable.c')
-rwxr-xr-x | hicn-light/src/processor/matchingRulesTable.c | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/hicn-light/src/processor/matchingRulesTable.c b/hicn-light/src/processor/matchingRulesTable.c new file mode 100755 index 000000000..56e59c29e --- /dev/null +++ b/hicn-light/src/processor/matchingRulesTable.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_Hash.h> +#include <parc/algol/parc_Memory.h> + +#include <parc/assert/parc_Assert.h> +#include <src/processor/hashTableFunction.h> +#include <src/processor/matchingRulesTable.h> + +struct matching_rules_table { + // using this wrapper we can manatain multiple hash tables indexed in + // different ways + // for now we use only a table indexed by name + + PARCHashCodeTable *tableByName; + PARCHashCodeTable_Destroyer dataDestroyer; +}; + +static PARCHashCodeTable *matchingRulesTable_GetTableForMessage( + const MatchingRulesTable *pit, const Message *interestMessage); + +// ====================================================================== + +MatchingRulesTable *matchingRulesTable_Create( + PARCHashCodeTable_Destroyer dataDestroyer) { + size_t initialSize = 65535; + + MatchingRulesTable *table = + parcMemory_AllocateAndClear(sizeof(MatchingRulesTable)); + parcAssertNotNull(table, "parcMemory_AllocateAndClear(%zu) returned NULL", + sizeof(MatchingRulesTable)); + table->dataDestroyer = dataDestroyer; + + table->tableByName = parcHashCodeTable_Create_Size( + hashTableFunction_MessageNameEquals, + hashTableFunction_MessageNameHashCode, NULL, dataDestroyer, initialSize); + + return table; +} + +void matchingRulesTable_Destroy(MatchingRulesTable **tablePtr) { + parcAssertNotNull(tablePtr, "Parameter must be non-null double pointer"); + parcAssertNotNull(*tablePtr, + "Parameter must dereference to non-null pointer"); + + MatchingRulesTable *table = *tablePtr; + + parcHashCodeTable_Destroy(&table->tableByName); + + parcMemory_Deallocate((void **)&table); + *tablePtr = NULL; +} + +void *matchingRulesTable_Get(const MatchingRulesTable *rulesTable, + const Message *message) { + parcAssertNotNull(rulesTable, "Parameter rulesTable must be non-null"); + parcAssertNotNull(message, "Parameter message must be non-null"); + + PARCHashCodeTable *hashTable = + matchingRulesTable_GetTableForMessage(rulesTable, message); + return parcHashCodeTable_Get(hashTable, message); +} + +PARCArrayList *matchingRulesTable_GetUnion(const MatchingRulesTable *table, + const Message *message) { + PARCArrayList *list = parcArrayList_Create_Capacity(NULL, NULL, 3); + + void *dataByName = parcHashCodeTable_Get(table->tableByName, message); + if (dataByName) { + parcArrayList_Add(list, dataByName); + } + + return list; +} + +void matchingRulesTable_RemoveFromBest(MatchingRulesTable *rulesTable, + const Message *message) { + parcAssertNotNull(rulesTable, "Parameter rulesTable must be non-null"); + parcAssertNotNull(message, "Parameter message must be non-null"); + + PARCHashCodeTable *hashTable = + matchingRulesTable_GetTableForMessage(rulesTable, message); + parcHashCodeTable_Del(hashTable, message); +} + +void matchingRulesTable_RemoveFromAll(MatchingRulesTable *rulesTable, + const Message *message) { + parcAssertNotNull(rulesTable, "Parameter rulesTable must be non-null"); + parcAssertNotNull(message, "Parameter message must be non-null"); + + parcHashCodeTable_Del(rulesTable->tableByName, message); +} + +bool matchingRulesTable_AddToBestTable(MatchingRulesTable *rulesTable, + Message *key, void *data) { + parcAssertNotNull(rulesTable, "Parameter rulesTable must be non-null"); + parcAssertNotNull(key, "Parameter key must be non-null"); + parcAssertNotNull(data, "Parameter data must be non-null"); + + PARCHashCodeTable *hashTable = + matchingRulesTable_GetTableForMessage(rulesTable, key); + + bool success = parcHashCodeTable_Add(hashTable, key, data); + + return success; +} + +// ======================================================================================== + +static PARCHashCodeTable *matchingRulesTable_GetTableForMessage( + const MatchingRulesTable *pit, const Message *interestMessage) { + PARCHashCodeTable *table; + table = pit->tableByName; + + return table; +} |