nes-proj/platform/pc-6001/apps/multithread/mt-test.c

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/*
* Copyright (c) 2007, Swedish Institute of Computer Science.
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
*
* This file is part of the Contiki operating system.
*
* Author: Oliver Schmidt <ol.sc@web.de>
*
* $Id: mt-test.c,v 1.2 2007/09/11 12:55:57 matsutsuka Exp $
*/
/**
* \file
* A very simple Contiki application showing how to use the Contiki
* Multi-threading library
* \author
* Oliver Schmidt <ol.sc@web.de>
* \author for PC-6001 version
* Takahide Matsutsuka <markn@markn.org>
*/
#include <stdio.h>
#include "contiki.h"
#include "ctk.h"
#include "sys/mt.h"
#include "mtarch.h"
#define WIN_XSIZE 10
#define WIN_YSIZE 10
static char log[WIN_XSIZE * WIN_YSIZE];
static struct ctk_window window;
static struct ctk_label loglabel = {CTK_LABEL(0, 0, WIN_XSIZE, WIN_YSIZE, log)};
PROCESS(mt_process, "Multi-threading test");
static char buf[20];
void
println(char *str1)
{
static unsigned int i;
for(i = 1; i < WIN_YSIZE; i++) {
memcpy(log + (i - 1) * WIN_XSIZE, log + i * WIN_XSIZE, WIN_XSIZE);
}
memset(log + (WIN_YSIZE - 1) * WIN_XSIZE, 0, WIN_XSIZE);
strncpy(log + (WIN_YSIZE - 1) * WIN_XSIZE, str1, WIN_XSIZE);
CTK_WIDGET_REDRAW(&loglabel);
}
/*---------------------------------------------------------------------------*/
static void
thread_func(char *str, int len)
{
println((char *) (str + len));
mt_yield();
if(len) {
thread_func(str, len - 1);
mt_yield();
}
println((char *) (str + len));
}
/*---------------------------------------------------------------------------*/
static void
thread_main(void *data)
{
while(1) {
thread_func((char *)data, 9);
}
mt_exit();
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(mt_process, ev, data)
{
static struct etimer timer;
static int toggle = 0;
static struct mt_thread th1;
static struct mt_thread th2;
PROCESS_BEGIN();
ctk_window_new(&window, WIN_XSIZE, WIN_YSIZE, "Multithread");
CTK_WIDGET_ADD(&window, &loglabel);
memset(log, 0, sizeof(log));
ctk_window_open(&window);
mt_init();
mt_start(&th1, thread_main, "JIHGFEDCBA");
mt_start(&th2, thread_main, "9876543210");
etimer_set(&timer, CLOCK_SECOND / 2);
while(1) {
PROCESS_WAIT_EVENT();
if(ev == PROCESS_EVENT_TIMER) {
if(toggle) {
mt_exec(&th1);
toggle--;
} else {
mt_exec(&th2);
toggle++;
}
etimer_set(&timer, CLOCK_SECOND / 2);
} else if(ev == ctk_signal_window_close || ev == PROCESS_EVENT_EXIT) {
ctk_window_close(&window);
process_exit(&mt_process);
LOADER_UNLOAD();
}
}
mt_stop(&th1);
mt_stop(&th2);
mt_remove();
while(1) {
PROCESS_WAIT_EVENT();
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/