hai ChrisW67 thanks for your help.this program given below executes well with shell scripts.
the shell scripts run endlessly until i close it.
But I want to ask you is there any way that a shell script containing a .c executable file is executed in the shell script.
when I tried with the executable c program ,it didnt run.
I will give you a general example of the script.
hellosh:-
#!/bin/bash
echo "executing ./hey1"
./hey1
hello.c:-
#include<stdio.h>
main()
{
int i=0;
for(;;)
{
printf("hello %d\n",i);
i++;
sleep(1);
}
}
and i did
cc hello.c -o hey1
modbusarm1.pro:-
#-------------------------------------------------
#
# Project created by QtCreator 2011-12-09T11:28:02
#
#-------------------------------------------------
QT += core gui
TARGET = modbusarm1
TEMPLATE = app
SOURCES += main.cpp\
modbusarm1.cpp
HEADERS += modbusarm1.h
FORMS += modbusarm1.ui
RESOURCES +=
main.cpp:-
#include <QtGui/QApplication>
#include "modbusarm1.h"
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
modbusarm1 w;
w.show();
return a.exec();
}
modbusarm1.h:-
#ifndef MODBUSARM1_H
#define MODBUSARM1_H
#include<QProcess>
#include <QWidget>
//#include<QtGui>
namespace Ui {
class modbusarm1;
}
class modbusarm1 : public QWidget
{
Q_OBJECT
public:
modbusarm1(QWidget *parent = 0);
~modbusarm1();
QProcess* proc1;
QProcess* proc2;
// QTextEdit* arm_1;
// QTextEdit* arm_2;
public slots:
void rightMessage1();
void rightMessage2();
private:
Ui::modbusarm1 *ui;
};
#endif // MODBUSARM1_H
modbusarm1.cpp:-
#include "modbusarm1.h"
#include "ui_modbusarm1.h"
#include<QWidget>
#include<QProcess>
#include<QIODevice>
//#include<QtGui>
modbusarm1::modbusarm1(QWidget *parent) :
QWidget(parent),
ui(new Ui::modbusarm1)
{
ui->setupUi(this);
//QProcess* proc1;
//QProcess* proc2;
proc1= new QProcess();
//QString stringproc1="/home/karthik/Project2ndyearfinal/modbus_multiple_devices/adcserver1";
QString stringproc1="/home/karthik/hellosh";
// /home/karthik/Project2ndyearfinal/modbus_multiple_devices/adcserver1sh
proc1->start(stringproc1);
/* show output */
// connect(proc1, SIGNAL(readyReadStandardOutput()),this, SLOT(readAllStandardOutput()) );
connect(proc1, SIGNAL(readyReadStandardOutput()),this, SLOT(rightMessage1()) );
// connect(proc1, SIGNAL(readyReadStandardError()), this, SLOT(wrongMessage1()) );
/*------------------------------------------------------------------------------------------*/
/* create QProcess object */
proc2= new QProcess();
// QString stringproc2="/home/karthik/Project2ndyearfinal/modbus_multiple_devices/adcserver2";
QString stringproc2="/home/karthik/hello";
proc2->start(stringproc2);
// connect(proc1, SIGNAL(readyReadStandardOutput()),this, SLOT(readAllStandardOutput()) );
/* show output */
connect(proc2, SIGNAL(readyReadStandardOutput()),this, SLOT(rightMessage2()) );
//connect(proc2, SIGNAL(readyReadStandardError()), this, SLOT(wrongMessage2()) );
connect(ui->close,SIGNAL(clicked()),proc1,SLOT(kill()));
connect(ui->close,SIGNAL(clicked()),proc2,SLOT(kill()));
}
void modbusarm1::rightMessage1()
{
QByteArray data = proc1->readAllStandardOutput();
// arm_1->setText(QString data);
QString text2 = ui->arm_1->text() + QString(data);
ui->arm_1->setText(text2);
// connect(ui->close,SIGNAL(clicked()),proc1,SLOT(proc1->kill();));
// connect(ui->close,SIGNAL(clicked()),proc1,SLOT(kill()));
}
void modbusarm1::rightMessage2()
{
QByteArray data1 = proc2->readAllStandardOutput();
// arm_2->setText(QString data1);
QString text1 = ui->arm_2->text() + QString(data1);
ui->arm_2->setText(text1);
// connect(ui->close,SIGNAL(clicked()),proc1,SLOT(proc2->close();));
// connect(ui->close,SIGNAL(clicked()),proc2,SLOT(close()));
}
modbusarm1::~modbusarm1()
{
delete ui;
}
modbusarm1.ui:-
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>modbusarm1</class>
<widget class="QWidget" name="modbusarm1">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>400</width>
<height>300</height>
</rect>
</property>
<property name="windowTitle">
<string>modbusarm1</string>
</property>
<widget class="QLabel" name="Friendly_Arm1">
<property name="geometry">
<rect>
<x>120</x>
<y>50</y>
<width>141</width>
<height>31</height>
</rect>
</property>
<property name="text">
<string>Friendly Arm1</string>
</property>
</widget>
<widget class="QLabel" name="Friendly_Arm2">
<property name="geometry">
<rect>
<x>120</x>
<y>150</y>
<width>141</width>
<height>31</height>
</rect>
</property>
<property name="text">
<string>Friendly Arm2</string>
</property>
</widget>
<widget class="QLineEdit" name="arm_1">
<property name="geometry">
<rect>
<x>120</x>
<y>90</y>
<width>171</width>
<height>31</height>
</rect>
</property>
</widget>
<widget class="QLineEdit" name="arm_2">
<property name="geometry">
<rect>
<x>120</x>
<y>190</y>
<width>171</width>
<height>31</height>
</rect>
</property>
</widget>
<widget class="QPushButton" name="close">
<property name="geometry">
<rect>
<x>150</x>
<y>240</y>
<width>97</width>
<height>31</height>
</rect>
</property>
<property name="text">
<string>Close</string>
</property>
</widget>
</widget>
<layoutdefault spacing="6" margin="11"/>
<resources/>
<connections>
<connection>
<sender>close</sender>
<signal>clicked()</signal>
<receiver>modbusarm1</receiver>
<slot>close()</slot>
<hints>
<hint type="sourcelabel">
<x>231</x>
<y>260</y>
</hint>
<hint type="destinationlabel">
<x>306</x>
<y>250</y>
</hint>
</hints>
</connection>
</connections>
</ui>