From eb323e056e747d71867cf965434811c1de925de2 Mon Sep 17 00:00:00 2001
From: Luca Muscariello <lumuscar+fdio@cisco.com>
Date: Sat, 23 Mar 2019 14:13:53 +0100
Subject: [HICN-141] Definition of a C API for hicn-light

Change-Id: Id861f0abe58b1e3c9ba8cc76701da0f9c6801748
Signed-off-by: Luca Muscariello <lumuscar+fdio@cisco.com>
Signed-off-by: Angelo Mantellini <manangel@cisco.com>
---
 hicn-light/src/hicn/processor/matchingRulesTable.c | 132 +++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 hicn-light/src/hicn/processor/matchingRulesTable.c

(limited to 'hicn-light/src/hicn/processor/matchingRulesTable.c')

diff --git a/hicn-light/src/hicn/processor/matchingRulesTable.c b/hicn-light/src/hicn/processor/matchingRulesTable.c
new file mode 100644
index 000000000..a035f5890
--- /dev/null
+++ b/hicn-light/src/hicn/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/hicn/config.h>
+#include <stdio.h>
+
+#include <parc/algol/parc_Hash.h>
+#include <parc/algol/parc_Memory.h>
+
+#include <parc/assert/parc_Assert.h>
+#include <hicn/processor/hashTableFunction.h>
+#include <hicn/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;
+}
-- 
cgit 1.2.3-korg