process.cpp
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/***************************************************************************
* Copyright (C) 2005 by Jeff Ferr *
* root@sat *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "jprocess.h"
#include <iostream>
#include <sstream>
#include <string.h>
using namespace std;
using namespace jshared;
void test1()
{
std::cout << ".. test1 .." << std::endl;
int length;
char buf[256];
Process ls("/bin/ls -l");
ls.Start();
while ((length = ls.GetInputStream()->Read(buf, 255)) > 0) {
if (::write(1, buf, length) < 0) {
break;
}
}
}
void test2()
{
std::cout << ".. test2 .." << std::endl;
// std::string s = "This is\na small test\nvery small\nbut a test\n";
std::string s = "12\n13\n";
int length;
char buf[256];
Process grep("./multiply");
grep.Start();
grep.GetOutputStream()->Write(s.c_str(), s.size());
while ((length = grep.GetInputStream()->Read(buf, 255)) > 0) {
if (::write(1, buf, length) < 0) {
break;
}
}
}
void test3()
{
std::cout << ".. test3 .." << std::endl;
std::string s = "Peter Winston\nPhilip Johnson\nAnna Anderson\n";
int length;
char buf[256];
Process sort("sort -k 2");
sort.Start();
sort.GetOutputStream()->Write(s.c_str(), s.size());
while ((length = sort.GetInputStream()->Read(buf, 255)) > 0) {
if (::write(1, buf, length) < 0) {
break;
}
}
}
int main()
{
test1();
test2();
test3();
return 0;
}