407 lines
9.8 KiB
C
407 lines
9.8 KiB
C
/* lil-gp Genetic Programming System, version 1.0, 11 July 1995
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* Copyright (C) 1995 Michigan State University
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Douglas Zongker (zongker@isl.cps.msu.edu)
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* Dr. Bill Punch (punch@isl.cps.msu.edu)
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*
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* Computer Science Department
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* A-714 Wells Hall
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* Michigan State University
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* East Lansing, Michigan 48824
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* USA
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*
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*/
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#include <lilgp.h>
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char buffer[MAXMESSAGELENGTH];
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typedef struct
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{
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int id;
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char *ext;
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int reset;
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char *mode;
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int autoflush;
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FILE *f;
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int valid;
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char *buffer;
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} output;
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output streams[MAXOUTPUTSTREAMS] =
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{ { OUT_SYS, ".sys", 0, "w", 1, NULL, 0 },
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{ OUT_GEN, ".gen", 0, "w", 0, NULL, 0 },
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{ OUT_PRG, ".prg", 0, "w", 0, NULL, 0 },
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{ OUT_STT, ".stt", 0, "w", 0, NULL, 0 },
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{ OUT_BST, ".bst", 1, "w", 0, NULL, 0 },
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{ OUT_HIS, ".his", 0, "w", 0, NULL, 0 } };
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int output_stream_count = SYSOUTPUTSTREAMS;
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int toolate = 0;
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char *global_basename = NULL;
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int detail_level = DEFDETAILLEVEL;
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char error_type[3][20] = { "WARNING: ", "ERROR: ", "FATAL ERROR: " };
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extern int quietmode;
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/* create_output_stream()
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*
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* make a new entry in the outputstream table.
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*/
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int create_output_stream ( int id, char *ext, int reset, char *mode,
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int autoflush )
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{
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int i;
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/* can't create a new stream if they've already been opened. */
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if ( toolate )
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return OUTPUT_TOOLATE;
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/* is the stream table full? */
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if ( output_stream_count >= MAXOUTPUTSTREAMS )
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return OUTPUT_TOOMANY;
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/* is the id or extension the same as an existing stream? */
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for ( i = 0; i < output_stream_count; ++i )
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{
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if ( id == streams[i].id )
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return OUTPUT_DUP_ID;
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if ( strcmp ( ext, streams[i].ext ) == 0 )
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return OUTPUT_DUP_EXT;
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}
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/** save stuff in the table. **/
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streams[output_stream_count].id = id;
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streams[output_stream_count].ext = (char *)malloc ( strlen(ext)+1 );
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strcpy ( streams[output_stream_count].ext, ext );
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streams[output_stream_count].reset = reset;
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streams[output_stream_count].mode = (char *)malloc ( strlen(mode)+1 );
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strcpy ( streams[output_stream_count].mode, mode );
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streams[output_stream_count].autoflush = autoflush;
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streams[output_stream_count].f = NULL;
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streams[output_stream_count].valid = 0;
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++output_stream_count;
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return OUTPUT_OK;
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}
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/* initialize_output_streams()
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*
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* initialize the output streams. until they are opened, anything printed
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* to one (via oputs() or oprintf()) is saved in memory.
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*/
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void initialize_output_streams ( void )
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{
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int i;
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toolate = 1;
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for ( i = 0; i < output_stream_count; ++i )
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streams[i].buffer = NULL;
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}
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/* open_output_streams()
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*
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* open files associated with each output stream. dump anything buffered
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* in memory to the file.
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*/
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void open_output_streams ( void )
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{
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int i;
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char *fn = NULL;
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char *basename;
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basename = get_parameter ( "output.basename" );
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fn = (char *)MALLOC ( strlen(basename)+50 );
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for ( i = 0; i < output_stream_count; ++i )
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{
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strcpy ( fn, basename );
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strcat ( fn, streams[i].ext );
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streams[i].f = fopen ( fn, streams[i].mode );
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if ( streams[i].f == NULL )
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{
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error ( E_ERROR, "can't open output file \"%s\".", fn );
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}
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else
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{
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streams[i].valid = 1;
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if ( streams[i].buffer )
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fputs ( streams[i].buffer, streams[i].f );
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FREE ( streams[i].buffer );
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streams[i].buffer = NULL;
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}
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}
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global_basename = (char *)malloc ( strlen(basename)+1 );
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strcpy ( global_basename, basename );
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set_detail_level ( atoi ( get_parameter ( "output.detail" ) ) );
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if (fn)
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FREE(fn);
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}
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/* oputs()
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*
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* prints a string to an output stream.
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*/
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void oputs ( int streamid, int detail, const char *string )
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{
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int i, j;
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if ( streamid == OUT_SYS && !quietmode )
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{
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printf ( string );
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fflush ( stdout );
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}
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if ( detail_level < detail )
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return;
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for ( i = 0; i < output_stream_count; ++i )
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{
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if ( streamid == streams[i].id )
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{
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if ( streams[i].valid )
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{
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fputs ( string, streams[i].f );
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if ( streams[i].autoflush )
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fflush ( streams[i].f );
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break;
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}
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else
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{
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if ( streams[i].buffer )
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{
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j = strlen ( streams[i].buffer ) +
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strlen ( string ) + 1;
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streams[i].buffer = (char *)REALLOC ( streams[i].buffer, j );
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strcat ( streams[i].buffer, string );
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}
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else
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{
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streams[i].buffer = (char *)MALLOC ( strlen ( string ) + 1 );
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strcpy ( streams[i].buffer, string );
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}
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}
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}
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}
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}
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/* oprintf()
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*
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* prints a formatted string to an output stream.
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*/
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void oprintf ( int streamid, int detail, const char *format, ... )
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{
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va_list ap;
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if ( detail_level < detail )
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return;
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va_start ( ap, format );
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vsprintf ( buffer, format, ap );
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va_end ( ap );
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oputs ( streamid, detail, buffer );
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}
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/* output_filehandle()
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*
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* returns the filehandle associated with a given stream.
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*/
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FILE *output_filehandle ( int streamid )
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{
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int i;
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for ( i = 0; i < output_stream_count; ++i )
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if ( streamid == streams[i].id )
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if ( streams[i].valid )
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return ( streams[i].f );
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return NULL;
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}
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/* output_stream_close()
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*
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* closes an output stream, if it has been marked as resettable.
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*/
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void output_stream_close ( int streamid )
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{
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int i;
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for ( i = 0; i < output_stream_count; ++i )
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if ( streamid == streams[i].id )
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if ( streams[i].reset )
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if ( streams[i].valid )
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{
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fclose ( streams[i].f );
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streams[i].valid = 0;
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break;
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}
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}
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/* output_stream_open()
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*
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* reopens a resettable output stream.
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*/
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void output_stream_open ( int streamid )
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{
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char *fn = NULL;
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int i;
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for ( i = 0; i < output_stream_count; ++i )
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if ( streamid == streams[i].id )
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if ( streams[i].reset )
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if ( !streams[i].valid )
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{
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fn = (char *)MALLOC ( strlen(global_basename)+50 );
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strcpy ( fn, global_basename );
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strcat ( fn, streams[i].ext );
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streams[i].f = fopen ( fn, streams[i].mode );
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if ( streams[i].f == NULL )
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{
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/* an error. */
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}
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else
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streams[i].valid = 1;
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}
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if (fn)
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FREE(fn);
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}
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/* output_stream_flush()
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*
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* flushes all the resettable output streams.
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*/
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void output_stream_flush ( int streamid )
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{
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int i;
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for ( i = 0; i < output_stream_count; ++i )
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if ( streamid == streams[i].id )
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if ( streams[i].reset )
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if ( streams[i].valid )
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fflush ( streams[i].f );
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}
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/* close_output_streams()
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*
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* closes all the output streams.
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*/
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void close_output_streams ( void )
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{
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int i;
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for ( i = 0; i < output_stream_count; ++i )
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{
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if ( streams[i].valid )
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{
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fclose ( streams[i].f );
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streams[i].valid = 0;
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}
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}
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for ( i = SYSOUTPUTSTREAMS; i < MAXOUTPUTSTREAMS; ++i )
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{
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free ( streams[i].ext );
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free ( streams[i].mode );
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}
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free ( global_basename );
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}
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/* flush_output_streams()
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*
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* flushes all the output streams.
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*/
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void flush_output_streams ( void )
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{
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int i;
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for ( i = 0; i < output_stream_count; ++i )
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if ( streams[i].valid )
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fflush ( streams[i].f );
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}
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/* error()
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*
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* prints an error message to the system output stream, with a given
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* level of severity. If the error is fatal, then the error is also
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* printed to stderr and the program exits with status 1.
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*/
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void error ( int severity, char *format, ... )
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{
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va_list ap;
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va_start ( ap, format );
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vsprintf ( buffer, format, ap );
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va_end ( ap );
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strcat ( buffer, "\n" );
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oputs ( OUT_SYS, 0, error_type[severity] );
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oputs ( OUT_SYS, 0, buffer );
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if ( severity == E_FATAL_ERROR )
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{
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fprintf ( stderr, "exiting due to fatal error.\n" );
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exit(1);
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}
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}
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/* set_detail_level()
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*
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* sets the detail level to a given value.
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*/
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void set_detail_level ( int newlevel )
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{
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if ( newlevel >= MINDETAILLEVEL &&
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newlevel <= MAXDETAILLEVEL )
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detail_level = newlevel;
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}
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/* test_detail_level()
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*
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* returns 1 if the argument is less than or equal to the current
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* detail level.
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*/
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int test_detail_level ( int detail )
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{
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if ( detail_level < detail )
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return 0;
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return 1;
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}
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