Add example demonstrating the data structure libraries
This commit is contained in:
George Oikonomou
parent
e87e3850c4
commit
c3d2b095b6
7
examples/libs/data-structures/Makefile
Normal file
7
examples/libs/data-structures/Makefile
Normal file
@ -0,0 +1,7 @@
|
||||
CONTIKI_PROJECT = data-structures
|
||||
|
||||
all: $(CONTIKI_PROJECT)
|
||||
|
||||
CONTIKI = ../../..
|
||||
|
||||
include $(CONTIKI)/Makefile.include
|
||||
383
examples/libs/data-structures/data-structures.c
Normal file
383
examples/libs/data-structures/data-structures.c
Normal file
@ -0,0 +1,383 @@
|
||||
/*
|
||||
* Copyright (c) 2017, George Oikonomou - http://www.spd.gr
|
||||
* Copyright (c) 2017, James Pope
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the copyright holder nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
||||
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
||||
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
/*---------------------------------------------------------------------------*/
|
||||
#include "contiki.h"
|
||||
#include "lib/stack.h"
|
||||
#include "lib/queue.h"
|
||||
#include "lib/circular-list.h"
|
||||
#include "lib/dbl-list.h"
|
||||
#include "lib/dbl-circ-list.h"
|
||||
#include "lib/random.h"
|
||||
|
||||
#include <string.h>
|
||||
#include <stdbool.h>
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
/*---------------------------------------------------------------------------*/
|
||||
PROCESS(data_structure_process, "Data structure process");
|
||||
AUTOSTART_PROCESSES(&data_structure_process);
|
||||
/*---------------------------------------------------------------------------*/
|
||||
STACK(demo_stack);
|
||||
QUEUE(demo_queue);
|
||||
CIRCULAR_LIST(demo_cll);
|
||||
DBL_LIST(demo_dbl);
|
||||
DBL_CIRC_LIST(demo_dblcl);
|
||||
/*---------------------------------------------------------------------------*/
|
||||
typedef struct demo_struct_s {
|
||||
struct demo_struct_s *next;
|
||||
struct demo_struct_s *previous;
|
||||
unsigned short value;
|
||||
} demo_struct_t;
|
||||
/*---------------------------------------------------------------------------*/
|
||||
#define DATA_STRUCTURE_DEMO_ELEMENT_COUNT 4
|
||||
static demo_struct_t elements[DATA_STRUCTURE_DEMO_ELEMENT_COUNT];
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static void
|
||||
dbl_circ_list_print(dbl_circ_list_t dblcl)
|
||||
{
|
||||
demo_struct_t *this = *dblcl;
|
||||
|
||||
if(*dblcl == NULL) {
|
||||
printf("Length=0\n");
|
||||
return;
|
||||
}
|
||||
|
||||
do {
|
||||
printf("<--(0x%04x)--0x%04x--(0x%04x)-->", this->previous->value,
|
||||
this->value, this->next->value);
|
||||
this = this->next;
|
||||
} while(this != *dblcl);
|
||||
|
||||
printf(" (Length=%lu)\n", dbl_circ_list_length(dblcl));
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static void
|
||||
demonstrate_dbl_circ_list(void)
|
||||
{
|
||||
int i;
|
||||
demo_struct_t *this;
|
||||
|
||||
dbl_circ_list_init(demo_dblcl);
|
||||
printf("============================\n");
|
||||
printf("Circular, doubly-linked list\n");
|
||||
|
||||
for(i = 0; i < DATA_STRUCTURE_DEMO_ELEMENT_COUNT; i++) {
|
||||
elements[i].next = NULL;
|
||||
elements[i].previous = NULL;
|
||||
}
|
||||
|
||||
/* Add elements */
|
||||
dbl_circ_list_add_tail(demo_dblcl, &elements[0]);
|
||||
printf("Add tail : 0x%04x | ", elements[0].value);
|
||||
dbl_circ_list_print(demo_dblcl);
|
||||
|
||||
dbl_circ_list_add_after(demo_dblcl, &elements[0], &elements[1]);
|
||||
printf("Add after : 0x%04x | ", elements[1].value);
|
||||
dbl_circ_list_print(demo_dblcl);
|
||||
|
||||
dbl_circ_list_add_head(demo_dblcl, &elements[2]);
|
||||
printf("Add head : 0x%04x | ", elements[2].value);
|
||||
dbl_circ_list_print(demo_dblcl);
|
||||
|
||||
dbl_circ_list_add_before(demo_dblcl, &elements[2], &elements[3]);
|
||||
printf("Add before: 0x%04x | ", elements[3].value);
|
||||
dbl_circ_list_print(demo_dblcl);
|
||||
|
||||
/* Remove head */
|
||||
this = dbl_circ_list_head(demo_dblcl);
|
||||
printf("Rm head: (0x%04x) | ", this->value);
|
||||
dbl_circ_list_remove(demo_dblcl, this);
|
||||
dbl_circ_list_print(demo_dblcl);
|
||||
|
||||
/* Remove currently second element */
|
||||
this = ((demo_struct_t *)dbl_circ_list_head(demo_dblcl))->next;
|
||||
printf("Rm 2nd : (0x%04x) | ", this->value);
|
||||
dbl_circ_list_remove(demo_dblcl, this);
|
||||
dbl_circ_list_print(demo_dblcl);
|
||||
|
||||
/* Remove tail */
|
||||
this = dbl_circ_list_tail(demo_dblcl);
|
||||
printf("Rm tail: (0x%04x) | ", this->value);
|
||||
dbl_circ_list_remove(demo_dblcl, this);
|
||||
dbl_circ_list_print(demo_dblcl);
|
||||
|
||||
/* Remove last remaining element */
|
||||
this = dbl_circ_list_tail(demo_dblcl);
|
||||
printf("Rm last: (0x%04x) | ", this->value);
|
||||
dbl_circ_list_remove(demo_dblcl, this);
|
||||
dbl_circ_list_print(demo_dblcl);
|
||||
|
||||
printf("Circular, doubly-linked list is%s empty\n",
|
||||
dbl_circ_list_is_empty(demo_dblcl) ? "" : " not");
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static void
|
||||
dbl_list_print(dbl_list_t dll)
|
||||
{
|
||||
demo_struct_t *this;
|
||||
|
||||
for(this = *dll; this != NULL; this = this->next) {
|
||||
printf("<--(");
|
||||
if(this->previous == NULL) {
|
||||
printf(" null ");
|
||||
} else {
|
||||
printf("0x%04x", this->previous->value);
|
||||
}
|
||||
|
||||
printf(")--0x%04x--(", this->value);
|
||||
|
||||
if(this->next == NULL) {
|
||||
printf(" null ");
|
||||
} else {
|
||||
printf("0x%04x", this->next->value);
|
||||
}
|
||||
printf(")-->");
|
||||
}
|
||||
|
||||
printf(" (Length=%lu)\n", dbl_list_length(dll));
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static void
|
||||
demonstrate_dbl_list(void)
|
||||
{
|
||||
int i;
|
||||
demo_struct_t *this;
|
||||
|
||||
dbl_list_init(demo_dbl);
|
||||
printf("==================\n");
|
||||
printf("Doubly-linked list\n");
|
||||
|
||||
for(i = 0; i < DATA_STRUCTURE_DEMO_ELEMENT_COUNT; i++) {
|
||||
elements[i].next = NULL;
|
||||
elements[i].previous = NULL;
|
||||
}
|
||||
|
||||
/* Add elements */
|
||||
dbl_list_add_tail(demo_dbl, &elements[0]);
|
||||
printf("Add tail : 0x%04x | ", elements[0].value);
|
||||
dbl_list_print(demo_dbl);
|
||||
|
||||
dbl_list_add_after(demo_dbl, &elements[0], &elements[1]);
|
||||
printf("Add after : 0x%04x | ", elements[1].value);
|
||||
dbl_list_print(demo_dbl);
|
||||
|
||||
dbl_list_add_head(demo_dbl, &elements[2]);
|
||||
printf("Add head : 0x%04x | ", elements[2].value);
|
||||
dbl_list_print(demo_dbl);
|
||||
|
||||
dbl_list_add_before(demo_dbl, &elements[2], &elements[3]);
|
||||
printf("Add before: 0x%04x | ", elements[3].value);
|
||||
dbl_list_print(demo_dbl);
|
||||
|
||||
/* Remove head */
|
||||
this = dbl_list_head(demo_dbl);
|
||||
printf("Rm head: (0x%04x) | ", this->value);
|
||||
dbl_list_remove(demo_dbl, this);
|
||||
dbl_list_print(demo_dbl);
|
||||
|
||||
/* Remove currently second element */
|
||||
this = ((demo_struct_t *)dbl_list_head(demo_dbl))->next;
|
||||
printf("Rm 2nd : (0x%04x) | ", this->value);
|
||||
dbl_list_remove(demo_dbl, this);
|
||||
dbl_list_print(demo_dbl);
|
||||
|
||||
/* Remove tail */
|
||||
this = dbl_list_tail(demo_dbl);
|
||||
printf("Rm tail: (0x%04x) | ", this->value);
|
||||
dbl_list_remove(demo_dbl, this);
|
||||
dbl_list_print(demo_dbl);
|
||||
|
||||
/* Remove last remaining element */
|
||||
this = dbl_list_tail(demo_dbl);
|
||||
printf("Rm last: (0x%04x) | ", this->value);
|
||||
dbl_list_remove(demo_dbl, this);
|
||||
dbl_list_print(demo_dbl);
|
||||
|
||||
printf("Doubly-linked list is%s empty\n",
|
||||
dbl_list_is_empty(demo_dbl) ? "" : " not");
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static void
|
||||
circular_list_print(circular_list_t cl)
|
||||
{
|
||||
demo_struct_t *this = *cl;
|
||||
|
||||
if(*cl == NULL) {
|
||||
printf("Length=0\n");
|
||||
return;
|
||||
}
|
||||
|
||||
do {
|
||||
printf("0x%04x-->", this->value);
|
||||
this = this->next;
|
||||
} while(this != *cl);
|
||||
|
||||
printf("0x%04x (Length=%lu)\n", this->value, circular_list_length(cl));
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static void
|
||||
demonstrate_circular_list(void)
|
||||
{
|
||||
int i;
|
||||
|
||||
circular_list_init(demo_cll);
|
||||
printf("============================\n");
|
||||
printf("Circular, singly-linked list\n");
|
||||
|
||||
/* Add elements */
|
||||
for(i = 0; i < DATA_STRUCTURE_DEMO_ELEMENT_COUNT; i++) {
|
||||
elements[i].next = NULL;
|
||||
circular_list_add(demo_cll, &elements[i]);
|
||||
|
||||
printf("Add: 0x%04x | ", elements[i].value);
|
||||
circular_list_print(demo_cll);
|
||||
}
|
||||
|
||||
/* Remove head */
|
||||
circular_list_remove(demo_cll, circular_list_head(demo_cll));
|
||||
printf("Remove head | ");
|
||||
circular_list_print(demo_cll);
|
||||
|
||||
/* Remove currently second element */
|
||||
circular_list_remove(demo_cll,
|
||||
((demo_struct_t *)circular_list_head(demo_cll))->next);
|
||||
printf("Remove 2nd | ");
|
||||
circular_list_print(demo_cll);
|
||||
|
||||
/* Remove tail */
|
||||
circular_list_remove(demo_cll, circular_list_tail(demo_cll));
|
||||
printf("Remove tail | ");
|
||||
circular_list_print(demo_cll);
|
||||
|
||||
/* Remove last remaining element */
|
||||
circular_list_remove(demo_cll, circular_list_tail(demo_cll));
|
||||
printf("Remove last | ");
|
||||
circular_list_print(demo_cll);
|
||||
|
||||
printf("Circular list is%s empty\n",
|
||||
circular_list_is_empty(demo_cll) ? "" : " not");
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static void
|
||||
demonstrate_stack(void)
|
||||
{
|
||||
int i;
|
||||
demo_struct_t *this;
|
||||
|
||||
printf("=====\n");
|
||||
printf("Stack\n");
|
||||
|
||||
stack_init(demo_stack);
|
||||
|
||||
/* Add elements */
|
||||
for(i = 0; i < DATA_STRUCTURE_DEMO_ELEMENT_COUNT; i++) {
|
||||
elements[i].next = NULL;
|
||||
stack_push(demo_stack, &elements[i]);
|
||||
printf("Push: 0x%04x\n", elements[i].value);
|
||||
}
|
||||
|
||||
printf("Peek: 0x%04x\n",
|
||||
((demo_struct_t *)stack_peek(demo_stack))->value);
|
||||
|
||||
for(i = 0; i <= DATA_STRUCTURE_DEMO_ELEMENT_COUNT; i++) {
|
||||
this = stack_pop(demo_stack);
|
||||
printf("Pop: ");
|
||||
if(this == NULL) {
|
||||
printf("(stack underflow)\n");
|
||||
} else {
|
||||
printf("0x%04x\n", this->value);
|
||||
}
|
||||
}
|
||||
printf("Stack is%s empty\n",
|
||||
stack_is_empty(demo_stack) ? "" : " not");
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
static void
|
||||
demonstrate_queue(void)
|
||||
{
|
||||
int i;
|
||||
demo_struct_t *this;
|
||||
|
||||
printf("=====\n");
|
||||
printf("Queue\n");
|
||||
|
||||
queue_init(demo_queue);
|
||||
|
||||
/* Add elements */
|
||||
for(i = 0; i < DATA_STRUCTURE_DEMO_ELEMENT_COUNT; i++) {
|
||||
elements[i].next = NULL;
|
||||
queue_enqueue(demo_queue, &elements[i]);
|
||||
printf("Enqueue: 0x%04x\n", elements[i].value);
|
||||
}
|
||||
|
||||
printf("Peek: 0x%04x\n",
|
||||
((demo_struct_t *)queue_peek(demo_queue))->value);
|
||||
|
||||
for(i = 0; i <= DATA_STRUCTURE_DEMO_ELEMENT_COUNT; i++) {
|
||||
this = queue_dequeue(demo_queue);
|
||||
printf("Dequeue: ");
|
||||
if(this == NULL) {
|
||||
printf("(queue underflow)\n");
|
||||
} else {
|
||||
printf("0x%04lx\n", (unsigned long)this->value);
|
||||
}
|
||||
}
|
||||
|
||||
printf("Queue is%s empty\n",
|
||||
queue_is_empty(demo_queue) ? "" : " not");
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
PROCESS_THREAD(data_structure_process, ev, data)
|
||||
{
|
||||
int i;
|
||||
|
||||
PROCESS_BEGIN();
|
||||
|
||||
/* Generate some elements */
|
||||
printf("Elements: [");
|
||||
|
||||
for(i = 0; i < DATA_STRUCTURE_DEMO_ELEMENT_COUNT; i++) {
|
||||
elements[i].next = NULL;
|
||||
elements[i].value = random_rand();
|
||||
printf(" 0x%04x", elements[i].value);
|
||||
}
|
||||
printf(" ]\n");
|
||||
|
||||
demonstrate_stack();
|
||||
demonstrate_queue();
|
||||
demonstrate_circular_list();
|
||||
demonstrate_dbl_list();
|
||||
demonstrate_dbl_circ_list();
|
||||
|
||||
PROCESS_END();
|
||||
}
|
||||
/*---------------------------------------------------------------------------*/
|
||||
Loading…
Reference in New Issue
Block a user