main.c

   1 /*
   2  *      This program is free software; you can redistribute it and/or modify
   3  *      it under the terms of the GNU General Public License as published by
   4  *      the Free Software Foundation; either version 2 of the License, or
   5  *      (at your option) any later version.
   6  *
   7  *      This program is distributed in the hope that it will be useful,
   8  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  *      GNU General Public License for more details.
  11  *
  12  *      You should have received a copy of the GNU General Public License
  13  *      along with this program; if not, write to the Free Software
  14  *      Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  15  */
  16 #include "common.h"
  17 #include "init.h"
  18 #include "engine.h"
  19 #include "trans.h"
  20
  21 /* engine name */
  22 char program_name[MAX_STRING];
  23
  24 int main(int argc, char **argv)
  25 {
  26         int opt;
  27
  28 #ifdef STATISTIC_COUNTERS
  29         snprintf(program_name, MAX_STRING, "owl %s, build %s", PACKAGE_VERSION, __DATE__);
  30 #else
  31         snprintf(program_name, MAX_STRING, "owl %s", PACKAGE_VERSION);
  32 #endif
  33         /* turn off I/O buffering */
  34         setbuf(stdin, 0);
  35         setbuf(stdout, 0);
  36
  37         initialize_bitboards();
  38         initialize_zobrist();
  39
  40         start_engine();
  41
  42         /* parse command line parameters */
  43         while ((opt = getopt(argc, argv, "h:p:")) != -1)
  44                 switch (opt) {
  45                         case 'h':
  46                                 if ((e.main_hash_size = atoi(optarg)) <= 0)
  47                                         e.main_hash_enabled = FALSE;
  48                                 break;
  49                         case 'p':
  50                                 if ((e.pawn_hash_size = atoi(optarg)) <= 0)
  51                                         e.pawn_hash_enabled = FALSE;
  52                                 break;
  53                 }
  54
  55         /* allocate memory for hashtables */
  56         if (initialize_pawn_hashtable()) {
  57                 e.pawn_hash_enabled = FALSE;
  58                 fprintf(stderr, "Can't allocate pawn hashtable!\n");
  59         }
  60         if (initialize_main_hashtable()) {
  61                 e.main_hash_enabled = FALSE;
  62                 fprintf(stderr, "Can't allocate main hashtable!\n");
  63         }
  64
  65         /* clear transposition tables */
  66         clear_pawn_hashtable();
  67         clear_main_hashtable();
  68
  69         loopcmd();
  70
  71         return 0;
  72 }