nes-proj/apps/process-list/process-list.c

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/*
* Copyright (c) 2002, Adam Dunkels.
* 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. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 desktop environment
*
* $Id: process-list.c,v 1.2 2006/08/27 15:15:46 oliverschmidt Exp $
*
*/
#include "ctk/ctk.h"
#include "contiki.h"
#include <string.h>
#define MAX_PROCESSLABELS 13
static struct ctk_window processwindow;
static struct {struct process *p; char id[2];} processes[MAX_PROCESSLABELS];
static struct ctk_label processidlabels[MAX_PROCESSLABELS];
static struct ctk_label processnamelabels[MAX_PROCESSLABELS];
static struct ctk_label killlabel =
{CTK_LABEL(0, 14, 12, 1, "Kill process")};
static char killprocnum[3];
static struct ctk_textentry killtextentry =
{CTK_TEXTENTRY(13, 14, 2, 1, killprocnum, 2)};
static struct ctk_button killbutton =
{CTK_BUTTON(19, 14, 2, "Ok")};
static struct ctk_button processupdatebutton =
{CTK_BUTTON(0, 15, 6, "Update")};
static struct ctk_button processclosebutton =
{CTK_BUTTON(19, 15, 5, "Close")};
PROCESS(processes_process, "Process listing");
enum {
EVENT_UPDATE
};
/*-----------------------------------------------------------------------------------*/
static void
update_processwindow(void)
{
unsigned char i;
struct process *p;
char *idptr;
i = 0;
for(p = PROCESS_LIST(); p != NULL && i < MAX_PROCESSLABELS; p = p->next) {
processes[i].p = p;
idptr = processes[i].id;
idptr[0] = '0' + (i / 10) % 10;
idptr[1] = '0' + i % 10;
CTK_LABEL_NEW(&processidlabels[i],
1, i + 1, 2, 1, idptr);
CTK_WIDGET_ADD(&processwindow, &processidlabels[i]);
CTK_LABEL_NEW(&processnamelabels[i],
4, i + 1, 22, 1, (char *)p->name);
CTK_WIDGET_ADD(&processwindow, &processnamelabels[i]);
++i;
}
CTK_WIDGET_ADD(&processwindow, &killlabel);
CTK_WIDGET_ADD(&processwindow, &killtextentry);
CTK_WIDGET_ADD(&processwindow, &killbutton);
CTK_WIDGET_ADD(&processwindow, &processupdatebutton);
CTK_WIDGET_ADD(&processwindow, &processclosebutton);
CTK_WIDGET_FOCUS(&processwindow, &processupdatebutton);
}
/*-----------------------------------------------------------------------------------*/
static void
processes_quit(void)
{
process_exit(&processes_process);
LOADER_UNLOAD();
}
/*-----------------------------------------------------------------------------------*/
static void
killproc(void)
{
unsigned char procnum, valid, i;
struct process *p;
procnum = 0;
valid = 0;
for(i = 0; i < 2; ++i) {
if(killprocnum[i] >= '0' && killprocnum[i] <= '9') {
procnum = procnum * 10 + (killprocnum[i] - '0');
valid = 1;
}
}
if(valid == 0) {
return;
}
/* Make sure the process ID exists. */
for(p = PROCESS_LIST(); p != NULL; p = p->next) {
if(p == processes[procnum].p) {
break;
}
}
if(p != NULL) {
process_post(p, PROCESS_EVENT_EXIT, NULL);
CTK_WIDGET_FOCUS(&processwindow, &processupdatebutton);
CTK_WIDGET_REDRAW(&killbutton);
CTK_WIDGET_REDRAW(&processupdatebutton);
}
CTK_TEXTENTRY_CLEAR(&killtextentry);
CTK_WIDGET_REDRAW(&killtextentry);
}
/*-----------------------------------------------------------------------------------*/
PROCESS_THREAD(processes_process, ev, data)
{
PROCESS_BEGIN();
ctk_window_new(&processwindow, 26, 16, "Processes");
update_processwindow();
ctk_window_open(&processwindow);
while(1) {
PROCESS_WAIT_EVENT();
if(ev == EVENT_UPDATE) {
ctk_window_clear(&processwindow);
update_processwindow();
ctk_window_open(&processwindow);
} else if(ev == ctk_signal_button_activate) {
if(data == (process_data_t)&processupdatebutton) {
ctk_window_clear(&processwindow);
update_processwindow();
ctk_window_open(&processwindow);
} else if(data == (process_data_t)&processclosebutton) {
ctk_window_close(&processwindow);
processes_quit();
/* ctk_desktop_redraw(processwindow.desktop); */
} else if(data == (process_data_t)&killbutton) {
killproc();
}
} else if(ev == PROCESS_EVENT_EXIT ||
(ev == ctk_signal_window_close &&
data == (process_data_t)&processwindow)) {
ctk_window_close(&processwindow);
processes_quit();
}
}
PROCESS_END();
}
/*-----------------------------------------------------------------------------------*/