unflatten.c

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00001 /* LIBDGL -- a Directed Graph Library implementation
00002  * Copyright (C) 2002 Roberto Micarelli
00003  *
00004  * This program is free software; you can redistribute it and/or modify
00005  * it under the terms of the GNU General Public License as published by
00006  * the Free Software Foundation; either version 2 of the License, or
00007  * (at your option) any later version.
00008  *
00009  * This program is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  * GNU General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU General Public License
00015  * along with this program; if not, write to the Free Software
00016  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00017  */
00018 
00019 /*
00020  * Source best viewed with tabstop=4
00021  */
00022 
00023 #include <stdio.h>
00024 #include <sys/types.h>
00025 #include <sys/stat.h>
00026 #include <unistd.h>
00027 #include <stdlib.h>
00028 #include <fcntl.h>
00029 #include <time.h>
00030 #include <errno.h>
00031 #include <math.h>
00032 
00033 #include "../type.h"
00034 #include "../graph.h"
00035 
00036 #include "opt.h"
00037 
00038 int main( int argc , char ** argv )
00039 {
00040         dglGraph_s      graph;
00041         int                             nret , fd;
00042 
00043         /* program options
00044          */
00045         char    *       pszGraph;
00046         char    *       pszGraphOut;
00047  
00048         GNO_BEGIN/* short   long                default     variable        help */
00049         GNO_OPTION( "g",        "graph",                NULL ,          & pszGraph ,    "Input Graph file" )
00050         GNO_OPTION( "o",        "graphout",     NULL ,          & pszGraphOut , "Output Graph file" )
00051         GNO_END
00052  
00053 
00054         if ( GNO_PARSE( argc , argv ) < 0 )
00055         {
00056                 return 1;
00057         }
00058         /*
00059          * options parsed
00060          */
00061 
00062         printf( "Graph read:\n" );
00063         if ( (fd = open( pszGraph , O_RDONLY )) < 0 )
00064         {
00065                 perror( "open" ); return 1;
00066         }
00067         nret = dglRead( & graph , fd );
00068         if ( nret < 0 ) {
00069                 fprintf( stderr , "dglRead error: %s\n", dglStrerror( & graph ) );
00070                 return 1;
00071         }
00072         close( fd );
00073         printf( "Done.\n" );
00074 
00075 
00076         printf( "Graph unflatten:\n" );
00077         nret = dglUnflatten( & graph );
00078         if ( nret < 0 ) {
00079                 fprintf( stderr , "dglUnflatten error: %s\n", dglStrerror( & graph ) );
00080                 return 1;
00081         }
00082         printf( "Done.\n" );
00083 
00084 
00085         printf( "Graph flatten:\n" );
00086         nret = dglFlatten( & graph );
00087         printf( "Done.\n" );
00088 
00089 
00090         if ( pszGraphOut ) {
00091                 printf( "Graph write:\n" );
00092                 if ( (fd = open( pszGraphOut , O_WRONLY | O_CREAT | O_TRUNC, 0666 )) < 0 )
00093                 {
00094                         perror( "open" ); return 1;
00095                 }
00096                 dglWrite( & graph, fd );
00097                 if ( nret < 0 )
00098                 {
00099                         fprintf( stderr , "dglWrite error: %s\n" , dglStrerror( & graph ) );
00100                         return 1;
00101                 }
00102                 close( fd );
00103                 printf( "Done.\n" );
00104         }
00105 
00106         dglRelease( & graph );
00107         return 0;
00108 }

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