| /* |
| * Copyright 2008 Google Inc. |
| * |
| * 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 <stddef.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include "key_value.h" |
| |
| static KeyValue *key_values = NULL; |
| static unsigned int number_of_key_values = 0; |
| |
| void set_key_values(KeyValue * const new_key_values, |
| const unsigned int new_number_of_key_values) { |
| key_values = new_key_values; |
| number_of_key_values = new_number_of_key_values; |
| } |
| |
| /* Compare two key members of KeyValue structures. */ |
| static int key_value_compare_keys(const void *a, const void *b) { |
| return (int)((KeyValue*)a)->key - (int)((KeyValue*)b)->key; |
| } |
| |
| /* Search an array of key value pairs for the item with the specified value. */ |
| KeyValue* find_item_by_value(const char * const value) { |
| unsigned int i; |
| for (i = 0; i < number_of_key_values; i++) { |
| if (strcmp(key_values[i].value, value) == 0) { |
| return &key_values[i]; |
| } |
| } |
| return NULL; |
| } |
| |
| /* Sort an array of key value pairs by key. */ |
| void sort_items_by_key(void) { |
| qsort(key_values, number_of_key_values, sizeof(*key_values), |
| key_value_compare_keys); |
| } |