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/* LIBDGL -- a Directed Graph Library implementation
* Copyright (C) 2002 Roberto Micarelli
*
* 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.
*/
/*
* Source best viewed with tabstop=4
*/
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdlib.h>
#include <fcntl.h>
#include <time.h>
#include <errno.h>
#include <math.h>
#include "../type.h"
#include "../graph.h"
#include "opt.h"
int main( int argc , char ** argv )
{
dglGraph_s graph;
dglInt32_t nNode;
int nret , fd;
/* program options
*/
char * pszGraph;
char * pszGraphOut;
char * pszNode;
GNO_BEGIN/* short long default variable help */
GNO_OPTION( "g", "graph", NULL , & pszGraph , "Input Graph file" )
GNO_OPTION( "o", "graphout", NULL , & pszGraphOut , "Output Graph file" )
GNO_OPTION( "n", "node", NULL , & pszNode , "Node Id to cancel" )
GNO_END
if ( GNO_PARSE( argc , argv ) < 0 )
{
return 1;
}
/*
* options parsed
*/
if ( pszNode == NULL ) {
GNO_HELP("delnode usage");
return 1;
}
nNode = atol(pszNode);
printf( "Graph read:\n" );
if ( (fd = open( pszGraph , O_RDONLY )) < 0 )
{
perror( "open" ); return 1;
}
nret = dglRead( & graph , fd );
if ( nret < 0 ) {
fprintf( stderr , "dglRead error: %s\n", dglStrerror( & graph ) );
return 1;
}
close( fd );
printf( "Done.\n" );
printf( "Graph unflatten:\n" );
nret = dglUnflatten( & graph );
if ( nret < 0 ) {
fprintf( stderr , "dglUnflatten error: %s\n", dglStrerror( & graph ) );
return 1;
}
printf( "Done.\n" );
nret = dglDelNode( & graph, nNode );
if ( nret < 0 ) {
fprintf( stderr , "dglDelNode error: %s\n", dglStrerror( & graph ) );
return 1;
}
printf( "Graph flatten:\n" );
nret = dglFlatten( & graph );
printf( "Done.\n" );
if ( pszGraphOut ) {
printf( "Graph write: %s\n", pszGraphOut );
if ( (fd = open( pszGraphOut , O_WRONLY | O_CREAT | O_TRUNC, 0666 )) < 0 )
{
perror( "open" ); return 1;
}
nret = dglWrite( & graph, fd );
if ( nret < 0 )
{
fprintf( stderr , "dglWrite error: %s\n" , dglStrerror( & graph ) );
return 1;
}
close( fd );
printf( "Done.\n" );
}
dglRelease( & graph );
return 0;
}
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