135 lines
3.0 KiB
C
135 lines
3.0 KiB
C
/*
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* Copyright (C) 2019 Scoopta
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* This file is part of Wofi
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* Wofi is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Wofi is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Wofi. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <map.h>
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struct map {
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char* key;
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void* value;
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size_t size;
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bool mman;
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struct map* head, *left, *right;
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};
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struct map* map_init() {
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struct map* map = calloc(1, sizeof(struct map));
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map->head = map;
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map->mman = true;
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return map;
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}
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struct map* map_init_void() {
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struct map* map = map_init();
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map->mman = false;
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return map;
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}
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void map_free(struct map* map) {
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if(map->left != NULL) {
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map_free(map->left);
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}
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if(map->right != NULL) {
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map_free(map->right);
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}
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if(map->key != NULL) {
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free(map->key);
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}
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if(map->value != NULL && map->head->mman) {
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free(map->value);
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}
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free(map);
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}
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static void put(struct map* map, const char* key, void* value) {
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if(map->key == NULL) {
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map->key = strdup(key);
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if(value != NULL && map->head->mman) {
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map->value = strdup(value);
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} else {
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map->value = value;
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}
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++map->head->size;
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} else if(strcmp(key, map->key) < 0) {
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if(map->left == NULL) {
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map->left = map_init();
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map->left->head = map->head;
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}
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put(map->left, key, value);
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} else if(strcmp(key, map->key) > 0) {
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if(map->right == NULL) {
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map->right = map_init();
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map->right->head = map->head;
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}
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put(map->right, key, value);
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} else {
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if(map->value != NULL && map->head->mman) {
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free(map->value);
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}
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if(value != NULL && map->head->mman) {
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map->value = strdup(value);
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} else {
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map->value = value;
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}
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}
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}
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bool map_put(struct map* map, const char* key, char* value) {
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if(map->head->mman) {
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put(map, key, value);
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return true;
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} else {
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fprintf(stderr, "This is an unmanaged map please use map_put_void\n");
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return false;
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}
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}
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bool map_put_void(struct map* map, const char* key, void* value) {
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if(map->head->mman) {
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fprintf(stderr, "This is an managed map please use map_put\n");
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return false;
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} else {
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put(map, key, value);
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return true;
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}
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}
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void* map_get(struct map* map, const char* key) {
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if(map->key == NULL) {
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return NULL;
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} else if(strcmp(key, map->key) < 0) {
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if(map->left == NULL) {
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return NULL;
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}
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return map_get(map->left, key);
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} else if(strcmp(key, map->key) > 0) {
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if(map->right == NULL) {
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return NULL;
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}
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return map_get(map->right, key);
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} else {
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return map->value;
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}
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}
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bool map_contains(struct map* map, const char* key) {
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return map_get(map, key) != NULL;
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}
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size_t map_size(struct map* map) {
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return map->size;
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}
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