text: /*
   * 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
   *
   *
   */
  
  #include "ctk/ctk.h"
  #include "contiki.h"
  
  #include <string.h>
  
  #ifdef PROCESSLIST_CONF_HEIGHT
  #define PROCESSLIST_HEIGHT PROCESSLIST_CONF_HEIGHT
  #else /* PROCESSLIST_CONF_HEIGHT */
  #define PROCESSLIST_HEIGHT 16
  #endif /* PROCESSLIST_CONF_HEIGHT */
  
  #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, PROCESSLIST_HEIGHT - 2, 12, 1, "Kill process")};
  static char killprocnum[3];
  static struct ctk_textentry killtextentry =
    {CTK_TEXTENTRY(13, PROCESSLIST_HEIGHT - 2, 2, 1, killprocnum, 2)};
  static struct ctk_button killbutton =
    {CTK_BUTTON(19, PROCESSLIST_HEIGHT - 2, 2, "Ok")};
  static struct ctk_button processupdatebutton =
    {CTK_BUTTON(0, PROCESSLIST_HEIGHT - 1, 6, "Update")};
  static struct ctk_button processclosebutton =
    {CTK_BUTTON(19, PROCESSLIST_HEIGHT - 1, 5, "Close")};
  
  PROCESS(processes_process, "Process listing");
  
  AUTOSTART_PROCESSES(&processes_process);
  
  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, PROCESS_NAME_STRING(p));
      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, PROCESSLIST_HEIGHT, "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();
  }
  /*-----------------------------------------------------------------------------------*/
  