2023_open_source_contest_warmup_1st_issue3 finish
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@ -247,6 +247,8 @@ menu "test app"
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menuconfig USER_TEST_RBTREE
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bool "Config test rbtree"
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default n
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menuconfig USER_TEST_RADIX_TREE
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bool "Config test radix tree"
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default n
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endif
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endmenu
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@ -109,5 +109,9 @@ ifeq ($(CONFIG_ADD_XIZI_FETURES),y)
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SRC_FILES += test_rbtree/test_rbtree.c
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endif
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ifeq ($(CONFIG_USER_TEST_RADIX_TREE),y)
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SRC_FILES += test_radix_tree/test_radix_tree.c
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endif
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include $(KERNEL_ROOT)/compiler.mk
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endif
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@ -0,0 +1,67 @@
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# **基于k210-emulator实现基数树并测试验证**
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## 1. 简介
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基于矽璓模拟器k210-emulator,实现基数树,并编写测试程序在shell终端打印结果
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## 2. 数据结构设计说明
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```c
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struct RadixTreeNode{
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char key;
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int value;
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RadixTreeNode* children[26];
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};
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```
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每个节点存储一个字符串中的一个字母,同时存储他的后一个字符的26种可能情况(在这里仅考虑小写英文字母)
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## 3. 测试程序说明
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```c
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void TestRadixTree(void)
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{
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RadixTreeNode* root = (RadixTreeNode*)malloc(sizeof(RadixTreeNode));
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root->key = 0;
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root->value = 0;
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for(int i = 0; i < 26; i++)
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root->children[i] = NULL;
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printf("创建基数树并且插入以下结点\n");
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printf("key: apple, value: 1\n");
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printf("key: banana, value: 2\n");
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printf("key: orange, value: 3\n");
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printf("key: pear, value: 4\n");
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printf("key: peach, value: 5\n");
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printf("key: xiuos, value: 6\n");
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RadixTreeInsert(root, "apple", 1);
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RadixTreeInsert(root, "banana", 2);
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RadixTreeInsert(root, "orange", 3);
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RadixTreeInsert(root, "pear", 4);
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RadixTreeInsert(root, "peach", 5);
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RadixTreeInsert(root, "xiuos", 6);
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printf("插入创建完毕后查询基数树结果:\n");
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printf("若输入的内容是某些key的前缀则会返回value 0, 若输入的内容完全不匹配则返回value -1, 若输入的内容是某个key则会返回对应的value\n");
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printf("Value of key \"apple\" is %d\n", RadixTreeSearch(root, "apple"));
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printf("Value of key \"banana\" is %d\n", RadixTreeSearch(root, "banana"));
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printf("Value of key \"orange\" is %d\n", RadixTreeSearch(root, "orange"));
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printf("Value of key \"pear\" is %d\n", RadixTreeSearch(root, "pear"));
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printf("Value of key \"peach\" is %d\n", RadixTreeSearch(root, "peach"));
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printf("Value of key \"xiuos\" is %d\n", RadixTreeSearch(root, "xiuos"));
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printf("Value of key \"app\" is %d\n", RadixTreeSearch(root, "app"));
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printf("Value of key \"xiuoss\" is %d\n", RadixTreeSearch(root, "xiuoss"));
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printf("测试结束, 清空基数树\n");
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RadixTreeClear(root);
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}
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```
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创建一个基数树并插入一些字符串作为key,以及它的相对应的value值(这里仅考虑value为int)。然后进行查找。若查找的key是某些key的前缀,则返回0,若查找的key不存在且不是某些key的前缀则返回-1.
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## 4. 运行结果(##需结合运行测试截图按步骤说明##)
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首先启动k210-emulator
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然后运行TestRadixTree指令进行测试
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@ -0,0 +1,63 @@
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/*
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* Copyright (c) 2020 AIIT XUOS Lab
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* XiUOS is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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/**
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* @file: test_radix_tree.c
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* @brief: a application to test radix tree and print result
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* @version: 1.1
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* @author: LeviXubbbb(Bin Xu)
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* @date: 2023/07/26
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <transform.h>
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#include "test_radix_tree.h"
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#ifdef ADD_XIZI_FETURES
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void TestRadixTree(void)
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{
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RadixTreeNode* root = (RadixTreeNode*)malloc(sizeof(RadixTreeNode));
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root->key = 0;
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root->value = 0;
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for(int i = 0; i < 26; i++)
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root->children[i] = NULL;
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printf("创建基数树并且插入以下结点\n");
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printf("key: apple, value: 1\n");
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printf("key: banana, value: 2\n");
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printf("key: orange, value: 3\n");
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printf("key: pear, value: 4\n");
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printf("key: peach, value: 5\n");
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printf("key: xiuos, value: 6\n");
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RadixTreeInsert(root, "apple", 1);
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RadixTreeInsert(root, "banana", 2);
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RadixTreeInsert(root, "orange", 3);
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RadixTreeInsert(root, "pear", 4);
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RadixTreeInsert(root, "peach", 5);
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RadixTreeInsert(root, "xiuos", 6);
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printf("插入创建完毕后查询基数树结果:\n");
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printf("若输入的内容是某些key的前缀则会返回value 0, 若输入的内容完全不匹配则返回value -1, 若输入的内容是某个key则会返回对应的value\n");
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printf("Value of key \"apple\" is %d\n", RadixTreeSearch(root, "apple"));
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printf("Value of key \"banana\" is %d\n", RadixTreeSearch(root, "banana"));
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printf("Value of key \"orange\" is %d\n", RadixTreeSearch(root, "orange"));
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printf("Value of key \"pear\" is %d\n", RadixTreeSearch(root, "pear"));
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printf("Value of key \"peach\" is %d\n", RadixTreeSearch(root, "peach"));
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printf("Value of key \"xiuos\" is %d\n", RadixTreeSearch(root, "xiuos"));
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printf("Value of key \"app\" is %d\n", RadixTreeSearch(root, "app"));
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printf("Value of key \"xiuoss\" is %d\n", RadixTreeSearch(root, "xiuoss"));
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printf("测试结束, 清空基数树\n");
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RadixTreeClear(root);
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}
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PRIV_SHELL_CMD_FUNCTION(TestRadixTree, a radix tree test sample, PRIV_SHELL_CMD_MAIN_ATTR);
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#endif
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@ -0,0 +1,90 @@
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/*
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* Copyright (c) 2020 AIIT XUOS Lab
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* XiUOS is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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/**
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* @file: test_radix_tree.h
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* @brief: a header file to implement radix tree
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* @version: 1.1
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* @author: LeviXubbbb(Bin Xu)
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* @date: 2023/07/26
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*/
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#ifndef XIUOS_TEST_RADIX_TREE_H
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#define XIUOS_TEST_RADIX_TREE_H
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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typedef struct RadixTreeNode RadixTreeNode;
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struct RadixTreeNode{
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char key;
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int value;
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RadixTreeNode* children[26];
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};
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static RadixTreeNode* createNode(char key, int value){
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RadixTreeNode* node = (RadixTreeNode*)malloc(sizeof(RadixTreeNode));
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node->key = key;
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node->value = value;
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for(int i = 0; i < 26; i++){
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node->children[i] = NULL;
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}
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return node;
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}
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void RadixTreeInsert(RadixTreeNode* root, char* key, int value){
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RadixTreeNode* node = root;
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int len = strlen(key);
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for(int i = 0; i < len; i++){
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int index = key[i] - 'a';
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if(index < 0 || index > 25){
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printf("Invalid key! Please use lowercase letters!\n");
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return;
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}
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if(node->children[index] == NULL){
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node->children[index] = createNode(key[i], 0);
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}
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node = node->children[index];
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}
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node->value = value;
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}
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int RadixTreeSearch(RadixTreeNode* root, char* key){
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RadixTreeNode* node = root;
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int len = strlen(key);
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for(int i = 0; i < len; i++){
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int index = key[i] - 'a';
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if(index < 0 || index > 25){
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printf("Invalid key! Please use lowercase letters!\n");
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return -1;
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}
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if(node->children[index] == NULL){
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return -1;
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}
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node = node->children[index];
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}
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return node->value;
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}
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void RadixTreeClear(RadixTreeNode* root){
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if(root == NULL){
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return;
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}
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for(int i = 0; i < 26; i++){
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RadixTreeClear(root->children[i]);
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}
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free(root);
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}
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#endif //XIUOS_TEST_RADIX_TREE_H
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