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/*
* This file is part of rasdaman community.
*
* Rasdaman community 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 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community 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 rasdaman community. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
/
/**
* SOURCE: system_basic.cc
*
* MODULE: rasodmg/test
*
* COMMENTS:
* None
*/
static const char rcsid[] = "@(#)rasodmg/test,rasql: $Id: rasql.cc,v 1.5 2002/05/25 14:29:15 coman Exp $";
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <iostream>
#include <fstream>
#include <stdio.h>
#include "readln.hh"
#include "rasql.hh"
static bool noMore = false;
void logo() {
std::cout << "RasQL v0.1, (c) 2001 active knowledge GmbH." << std::endl;
if(noMore)
std::cout << "Option: no more" << std::endl;
std::cout << std::endl;
}
bool toFile(char *s) {
std::ofstream os(file_name);
if(!os)
return false;
os << s;
return true;
}
void filter(void) {
execlp(filter_prog, filter_prog, filter_params, 0);
perror("exec");
exit(1);
}
void query(void) {
execlp(query_prog, query_prog,
server_param, server_name,
base_param, base_name,
file_param, file_name,
0);
perror("exec");
exit(1);
}
bool process(char* s) {
int p[2];
if(strcmp(s, "exit") == 0)
return false;
if(strcmp(s, "quit") == 0)
return false;
if(!toFile(s)) {
std::cerr << "toFile: error opening file " << file_name << std::endl;
return true;
}
if(noMore) {
if(!fork())
query();
}
else {
pipe(p);
if(!fork()) {
close(p[1]);
dup2(p[0], 0);
filter();
}
else if(!fork()) {
close(p[0]);
dup2(p[1], 1);
query();
}
else {
close(p[0]);
close(p[1]);
}
}
while(wait(0) > 0);
return true;
}
int main(int argc, char **argv) {
if(--argc && strcmp(*(++argv), "-nomore") == 0)
noMore = true;
logo();
ReadLn l(process, "RasQL> ");
l.loop();
std::cout << std::endl;
return 0;
}
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