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/*
* 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;
}
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