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ponder.c
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ponder.c
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#include <stdlib.h>
#include <limits.h>
#include "shogi.h"
int
ponder( tree_t * restrict ptree )
{
const char *str;
unsigned int move;
int iret;
if ( ( game_status & ( mask_game_end | flag_noponder | flag_nopeek ) )
|| abs( last_root_value ) > score_max_eval
|| ! record_game.moves
|| sec_limit_up == UINT_MAX ) { return 1; }
ponder_nmove = gen_legal_moves( ptree, ponder_move_list );
if ( get_elapsed( &time_start ) < 0 ) { return -1; }
Out( "\nSearch a move to ponder\n\n" );
OutCsaShogi( "info ponder start\n" );
game_status |= flag_puzzling;
iret = iterate( ptree, 0 );
game_status &= ~flag_puzzling;
if ( iret < 0 ) { return iret; }
if ( game_status & ( flag_quit | flag_quit_ponder | flag_suspend ) )
{
OutCsaShogi( "info ponder end\n" );
return 1;
}
if ( abs(last_root_value) > score_max_eval )
{
OutCsaShogi( "info ponder end\n" );
return 1;
}
ponder_move = move = last_pv.a[1];
str = str_CSA_move( move );
Out( "\nPonder on %c%s (%+.2f)\n\n",
ach_turn[root_turn], str, (double)last_root_value / 100.0 );
iret = make_move_root( ptree, move, ( flag_rep | flag_rejections ) );
if ( iret < 0 )
{
OutCsaShogi( "info ponder end\n" );
return iret;
}
if ( game_status & mask_game_end )
{
OutCsaShogi( "info ponder end\n" );
unmake_move_root( ptree, move );
return 1;
}
if ( get_elapsed( &time_start ) < 0 ) { return -1; }
game_status |= flag_pondering;
iret = iterate( ptree, 0 );
if ( game_status & flag_thinking )
{
game_status &= ~flag_thinking;
if ( iret < 0 ) { return iret; }
iret = com_turn_start( ptree, flag_from_ponder );
if ( iret < 0 ) { return iret; }
return 2;
}
OutCsaShogi( "info ponder end\n" );
game_status &= ~flag_pondering;
unmake_move_root( ptree, move );
return iret;
}
#if defined(MNJ_LAN)
int
analyze( tree_t * restrict ptree )
{
int iret;
if ( game_status & mask_game_end ) { return 1; }
iret = get_elapsed( &time_start );
if ( iret < 0 ) { return iret; }
game_status |= flag_pondering;
iret = iterate( ptree, 0 );
game_status &= ~flag_pondering;
if ( abs(last_root_value) > score_max_eval )
{
MnjOut( "pid=%d confident\n", mnj_posi_id );
}
return iret;
}
#endif