shutdown.cpp~

用于S3C2410上基于Qt开发的关机程序

/****************************************************************************
** Form implementation generated from reading ui file 'shutdown.ui'
**
** Created: Tue May 30 18:03:29 2006
**      by:  The User Interface Compiler (uic)
**
** WARNING! All changes made in this file will be lost!
****************************************************************************/

#include "shutdown.h"

#include <qlabel.h>
#include <qpushbutton.h>
#include <qlayout.h>
#include <qvariant.h>
#include <qtooltip.h>
#include <qwhatsthis.h>
#include <qimage.h>
#include <qpixmap.h>
#include <qmessagebox.h>

#include <stdio.h>
#include <unistd.h>
#include <sys/wait.h>
#include <signal.h>

#include "libdriver.h"

int execute(char *arglist[])
{
  int pid,exitstatus;
  
  BARCODE_poweron();
  
    pid =fork();
  switch (pid) {
    case -1:
      perror("fork failed");
      return 1;                                             
    case 0:                                                                       
      execvp(arglist[0],arglist);
      perror("execvp failed");
      return 1;
    default:
      while( wait(&exitstatus)!=pid);
     }
  return 0;  
 }
 
/* 
 *  Constructs a shutdown_form which is a child of 'parent', with the 
 *  name 'name' and widget flags set to 'f' 
 *
 *  The dialog will by default be modeless, unless you set 'modal' to
 *  TRUE to construct a modal dialog.
 */
shutdown_form::shutdown_form( QWidget* parent,  const char* name, bool modal, WFlags fl )
    : QDialog( parent, name, modal, fl )
{

    if ( !name )
	setName( "shutdown_form" );
    resize( 300, 190 ); 
    setCaption( tr( "Shutdown" ) );

    PixmapLabel2 = new QLabel( this, "PixmapLabel2" );
    PixmapLabel2->setGeometry( QRect( 30, 50, 50, 50 ) ); 
    PixmapLabel2->setPixmap( QPixmap("/mnt/a/myapp/icon/shutdown.png"));
    PixmapLabel2->setScaledContents( TRUE );

    PButshutdown = new QPushButton( this, "PButshutdown" );
    PButshutdown->setGeometry( QRect( 181, 11, 120, 31 ) ); 
    PButshutdown->setText( tr( "Shutdown" ) );

    PButReboot = new QPushButton( this, "PButReboot" );
    PButReboot->setGeometry( QRect( 181, 48, 120, 31 ) ); 
    PButReboot->setText( tr( "Reboot" ) );

    PButDebug = new QPushButton( this, "PButDebug" );
    PButDebug->setGeometry( QRect( 181, 85, 120, 31 ) ); 
    PButDebug->setText( tr( "Debug Mode" ) );

    PButCom = new QPushButton( this, "PButCom" );
    PButCom->setGeometry( QRect( 181, 122, 120, 31 ) ); 
    PButCom->setText( tr( "Open Com" ) );

    PButCancel = new QPushButton( this, "PButCancel" );
    PButCancel->setGeometry( QRect( 180, 170, 120, 31 ) ); 
    PButCancel->setText( tr( "Cancel" ) );

    // signals and slots connections
    connect( PButshutdown, SIGNAL( clicked() ), this, SLOT( shutdown_slot() ) );
    connect( PButCom, SIGNAL( clicked() ), this, SLOT( com_slot() ) );
    connect( PButCancel, SIGNAL( clicked() ), this, SLOT( accept() ) );
    connect( PButDebug, SIGNAL( clicked() ), this, SLOT( debug_slot() ) );
    connect( PButReboot, SIGNAL( clicked() ), this, SLOT( reboot_slot() ) );
}

/*  
 *  Destroys the object and frees any allocated resources
 */
shutdown_form::~shutdown_form()
{
 }

void shutdown_form::com_slot()
{
}

void shutdown_form::debug_slot()
{
   char *arglist[4];
     
   arglist[0]="killall";
   arglist[1]="launcher";
   arglist[2]=0;
   if(execute(arglist))
        QMessageBox::information(this,"Debug mode","Debug mode error!");
}

void shutdown_form::reboot_slot()
{
  if (kill(1,SIGTERM))
	     QMessageBox::information(this,"Reboot","Reboot error!");
}

void shutdown_form::shutdown_slot()
{
   if (kill(1,SIGTERM))
   //if (kill(1,SIGUSR2))
	     QMessageBox::information(this,"Shutdown","shutdown error!");
}