This is the first commit of the hicn projectv19.01

Change-Id: I6f2544ad9b9f8891c88cc4bcce3cf19bd3cc863f
Signed-off-by: Luca Muscariello <lumuscar+fdio@cisco.com>

1 files changed, 175 insertions, 0 deletions

diff --git a/hicn-light/src/config/symbolicNameTable.c b/hicn-light/src/config/symbolicNameTable.c
new file mode 100755
index 000000000..ccf416d67
--- /dev/null
+++ b/hicn-light/src/config/symbolicNameTable.c
@@ -0,0 +1,175 @@
+/*
+ * 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 <ctype.h>
+#include <parc/algol/parc_Hash.h>
+#include <parc/algol/parc_HashCodeTable.h>
+#include <parc/algol/parc_Memory.h>
+#include <parc/assert/parc_Assert.h>
+#include <src/config.h>
+#include <stdio.h>
+
+#include <src/config/symbolicNameTable.h>
+
+struct symblic_name_table {
+  PARCHashCodeTable *symbolicNameTable;
+  PARCHashCodeTable *indexToNameTable;
+};
+
+// ========================================================================================
+// symbolic name table functions
+
+static bool _symbolicNameEquals(const void *keyA, const void *keyB) {
+  return (strcasecmp((const char *)keyA, (const char *)keyB) == 0);
+}
+
+static HashCodeType _symbolicNameHash(const void *keyA) {
+  const char *str = (const char *)keyA;
+  size_t length = strlen(str);
+  return parcHash32_Data(str, length);
+}
+
+static bool _connectionIdEquals(const void *keyA, const void *keyB) {
+  unsigned idA = *((unsigned *)keyA);
+  unsigned idB = *((unsigned *)keyB);
+  return (idA == idB);
+}
+
+static HashCodeType _connectionIdHash(const void *keyA) {
+  unsigned idA = *((unsigned *)keyA);
+  return parcHash32_Int32(idA);
+}
+
+// ========================================================================================
+
+SymbolicNameTable *symbolicNameTable_Create(void) {
+  SymbolicNameTable *table = parcMemory_Allocate(sizeof(SymbolicNameTable));
+
+  if (table) {
+    // key = char *
+    // value = uint32_t *
+    table->symbolicNameTable = parcHashCodeTable_Create(
+        _symbolicNameEquals, _symbolicNameHash, parcMemory_DeallocateImpl,
+        parcMemory_DeallocateImpl);
+    table->indexToNameTable = parcHashCodeTable_Create(
+        _connectionIdEquals, _connectionIdHash, parcMemory_DeallocateImpl,
+        parcMemory_DeallocateImpl);
+  }
+
+  return table;
+}
+
+void symbolicNameTable_Destroy(SymbolicNameTable **tablePtr) {
+  SymbolicNameTable *table = *tablePtr;
+  parcHashCodeTable_Destroy(&table->symbolicNameTable);
+  // parcHashCodeTable_Destroy(&table->indexToNameTable);
+  parcMemory_Deallocate((void **)&table);
+  *tablePtr = NULL;
+}
+
+static char *_createKey(const char *symbolicName) {
+  char *key = parcMemory_StringDuplicate(symbolicName, strlen(symbolicName));
+
+  // convert key to upper case
+  char *p = key;
+
+  // keeps looping until the first null
+  while ((*p = toupper(*p))) {
+    p++;
+  }
+  return key;
+}
+
+bool symbolicNameTable_Exists(SymbolicNameTable *table,
+                              const char *symbolicName) {
+  parcAssertNotNull(table, "Parameter table must be non-null");
+  parcAssertNotNull(symbolicName, "Parameter symbolicName must be non-null");
+
+  char *key = _createKey(symbolicName);
+  bool found = (parcHashCodeTable_Get(table->symbolicNameTable, key) != NULL);
+  parcMemory_Deallocate((void **)&key);
+  return found;
+}
+
+void symbolicNameTable_Remove(SymbolicNameTable *table,
+                              const char *symbolicName) {
+  parcAssertNotNull(table, "Parameter table must be non-null");
+  parcAssertNotNull(symbolicName, "Parameter symbolicName must be non-null");
+
+  char *key = _createKey(symbolicName);
+
+  unsigned id = symbolicNameTable_Get(table, symbolicName);
+  uint32_t *value = parcMemory_Allocate(sizeof(uint32_t));
+  *value = id;
+
+  parcHashCodeTable_Del(table->symbolicNameTable, key);
+  parcHashCodeTable_Del(table->indexToNameTable, value);
+  parcMemory_Deallocate((void **)&key);
+  parcMemory_Deallocate((void **)&value);
+}
+
+bool symbolicNameTable_Add(SymbolicNameTable *table, const char *symbolicName,
+                           unsigned connid) {
+  parcAssertNotNull(table, "Parameter table must be non-null");
+  parcAssertNotNull(symbolicName, "Parameter symbolicName must be non-null");
+  parcAssertTrue(connid < UINT32_MAX, "Parameter connid must be less than %u",
+                 UINT32_MAX);
+
+  char *key = _createKey(symbolicName);
+
+  uint32_t *value = parcMemory_Allocate(sizeof(uint32_t));
+  *value = connid;
+
+  bool success = parcHashCodeTable_Add(table->symbolicNameTable, key, value);
+  success = parcHashCodeTable_Add(table->indexToNameTable, value, key);
+  if (!success) {
+    parcMemory_Deallocate((void **)&key);
+    parcMemory_Deallocate((void **)&value);
+  }
+
+  return success;
+}
+
+unsigned symbolicNameTable_Get(SymbolicNameTable *table,
+                               const char *symbolicName) {
+  parcAssertNotNull(table, "Parameter table must be non-null");
+  parcAssertNotNull(symbolicName, "Parameter symbolicName must be non-null");
+
+  unsigned connid = UINT32_MAX;
+
+  char *key = _createKey(symbolicName);
+
+  uint32_t *value = parcHashCodeTable_Get(table->symbolicNameTable, key);
+  if (value) {
+    connid = *value;
+  }
+
+  parcMemory_Deallocate((void **)&key);
+  return connid;
+}
+
+const char *symbolicNameTable_GetNameByIndex(SymbolicNameTable *table,
+                                             unsigned id) {
+  parcAssertNotNull(table, "Parameter table must be non-null");
+
+  uint32_t *value = parcMemory_Allocate(sizeof(uint32_t));
+  *value = id;
+
+  const char *name = parcHashCodeTable_Get(table->indexToNameTable, value);
+  if (name == NULL) name = "";
+
+  parcMemory_Deallocate((void **)&value);
+  return name;
+}