240 lines
7.8 KiB
C
240 lines
7.8 KiB
C
/*
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* Copyright (c) 2008, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: timetable-aggregate.c,v 1.2 2008/03/13 14:27:34 fros4943 Exp $
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*/
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/**
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* \file
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* A brief description of what this file is.
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* \author
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* Adam Dunkels <adam@sics.se>
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*/
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#include "sys/timetable-aggregate.h"
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#define XXX_HACK_MAX_CATEGORIES 32
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#include <stdio.h>
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/*---------------------------------------------------------------------------*/
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/*
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*
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* Find an aggregation category in the list of aggregates. If the
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* category could not be found, the function returns a pointer to an
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* empty entry. If the list is full, the function returns NULL.
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*
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*/
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static struct timetable_aggregate_entry *
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find_aggregate_category(struct timetable_aggregate *a,
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const uint16_t cat)
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{
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int i;
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uint16_t acat;
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for(i = 0; i < a->ptr; ++i) {
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acat = (a->entries[i].id[0] << 8) + a->entries[i].id[1];
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if(acat == cat) {
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return &a->entries[i];
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}
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}
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if(i == a->size) {
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return NULL;
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}
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a->entries[a->ptr].id = NULL;
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return &a->entries[a->ptr++];
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}
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/*---------------------------------------------------------------------------*/
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/*
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*
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* Find a specific aggregate ID in the list of aggregates.
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*
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*/
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static struct timetable_aggregate_entry *
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find_aggregate(struct timetable_aggregate *a,
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const char *id)
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{
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int i;
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for(i = 0; i < a->ptr; ++i) {
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if(a->entries[i].id == id) {
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return &a->entries[i];
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}
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}
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if(i == a->size) {
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return NULL;
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}
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a->entries[a->ptr].id = NULL;
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return &a->entries[a->ptr++];
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}
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/*---------------------------------------------------------------------------*/
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void
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timetable_aggregate_print_detailed(struct timetable_aggregate *a)
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{
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int i;
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/* printf("timetable_aggregate_print_detailed: a ptr %d\n", a->ptr);*/
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for(i = 0; i < a->ptr; ++i) {
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printf("-- %s: %lu / %u = %lu\n", a->entries[i].id,
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a->entries[i].time,
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a->entries[i].episodes,
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a->entries[i].time / a->entries[i].episodes);
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}
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printf("Memory for entries: %d * %d = %d\n",
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(int)sizeof(struct timetable_aggregate), a->ptr,
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(int)sizeof(struct timetable_aggregate) * a->ptr);
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}
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/*---------------------------------------------------------------------------*/
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void
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timetable_aggregate_reset(struct timetable_aggregate *a)
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{
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int i;
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for(i = 0; i < a->ptr; ++i) {
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a->entries[i].time = 0;
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a->entries[i].episodes = 0;
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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timetable_aggregate_print_categories(struct timetable_aggregate *a)
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{
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int i;
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/* printf("timetable_aggregate_print_categories: a ptr %d\n", a->ptr);*/
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for(i = 0; i < a->ptr; ++i) {
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printf("-- %c%c: %lu / %u = %lu\n",
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a->entries[i].id[0], a->entries[i].id[1],
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a->entries[i].time,
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a->entries[i].episodes,
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a->entries[i].time / a->entries[i].episodes);
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}
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printf("Memory for entries: %d * %d = %d\n",
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(int)sizeof(struct timetable_aggregate), a->ptr,
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(int)sizeof(struct timetable_aggregate) * a->ptr);
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}
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/*---------------------------------------------------------------------------*/
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void
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timetable_aggregate_compute_detailed(struct timetable_aggregate *a,
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struct timetable *timetable)
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{
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int i;
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rtimer_clock_t t;
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t = timetable->timestamps[0].time;
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for(i = 1; i < *timetable->ptr; ++i) {
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struct timetable_aggregate_entry *entry;
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entry = find_aggregate(a, timetable->timestamps[i - 1].id);
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if(entry == NULL) {
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/* The list is full, skip this entry */
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/* printf("detailed_timetable_aggregate_compute: list full\n");*/
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} else if(entry->id == NULL) {
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/* The id was found in the list, so we add it. */
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entry->id = timetable->timestamps[i - 1].id;
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entry->time = (unsigned long)(timetable->timestamps[i].time - t -
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timetable_timestamp_time);
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entry->episodes = 1;
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/* printf("New entry %s %lu\n", entry->id, entry->time);*/
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} else {
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entry->time += (unsigned long)(timetable->timestamps[i].time - t -
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timetable_timestamp_time);
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entry->episodes++;
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}
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t = timetable->timestamps[i].time;
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/* printf("a ptr %d\n", a->ptr);*/
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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timetable_aggregate_compute_categories(struct timetable_aggregate *a,
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struct timetable *timetable)
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{
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int i,j;
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rtimer_clock_t t;
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uint16_t categories[XXX_HACK_MAX_CATEGORIES];
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int categories_ptr = 0;
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t = timetable->timestamps[0].time;
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for(i = 1; i < *timetable->ptr; ++i) {
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struct timetable_aggregate_entry *entry;
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uint16_t cat;
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/* printf("category_timetable_aggregate_compute %s %d\n",
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timetable->timestamps[i - 1].id, i);*/
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cat = (timetable->timestamps[i - 1].id[0] << 8) +
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(timetable->timestamps[i - 1].id[1] & 0xff);
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entry = find_aggregate_category(a, cat);
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if(entry == NULL) {
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/* The list is full, skip this entry */
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/* printf("category_timetable_aggregate_compute: list full\n");*/
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} else if(entry->id == NULL) {
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/* The category was not found in the list, so we add it. */
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entry->id = timetable->timestamps[i - 1].id;
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entry->time = (unsigned long)(timetable->timestamps[i].time - t -
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timetable_timestamp_time);
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entry->episodes = 1;
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/* printf("New category %c%c time %lu\n",
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timetable->timestamps[i - 1].id[0],
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timetable->timestamps[i - 1].id[1], entry->time);*/
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} else {
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entry->time += (unsigned long)(timetable->timestamps[i].time - t -
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timetable_timestamp_time);
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/* printf("Adding time to %c%c time %lu\n",
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timetable->timestamps[i - 1].id[0],
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timetable->timestamps[i - 1].id[1], entry->time);*/
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/* Make sure that we only update the episodes of each category
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once per run. We keep track of all updated categories in the
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"categories" array. If the category is already present in the
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array, we do not update it. Otherwise, we insert the category
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in the array and update the episodes counter of the
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category. */
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for(j = 0; j < categories_ptr; ++j) {
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if(categories[j] == cat) {
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break;
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}
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}
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if(j == categories_ptr) {
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categories[j] = cat;
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categories_ptr++;
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entry->episodes++;
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}
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}
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t = timetable->timestamps[i].time;
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}
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}
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/*---------------------------------------------------------------------------*/
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