// To profile with callgrind uncomment following line
//#define USE_CALLGRIND
-
-////
-//// Includes
-////
-
+#include <cstdio>
#include <iostream>
#include <string>
-#include "bitcount.h"
-#include "misc.h"
+#include "bitboard.h"
+#include "evaluate.h"
+#include "position.h"
+#include "thread.h"
+#include "ucioption.h"
#ifdef USE_CALLGRIND
#include <valgrind/callgrind.h>
using namespace std;
-extern void uci_main_loop();
+extern bool execute_uci_command(const string& cmd);
extern void benchmark(int argc, char* argv[]);
-
-////
-//// Functions
-////
+extern void init_kpk_bitbase();
int main(int argc, char* argv[]) {
- // Disable IO buffering
+ // Disable IO buffering for C and C++ standard libraries
+ setvbuf(stdin, NULL, _IONBF, 0);
+ setvbuf(stdout, NULL, _IONBF, 0);
cout.rdbuf()->pubsetbuf(NULL, 0);
cin.rdbuf()->pubsetbuf(NULL, 0);
- // Initialization through global resources manager
- Application::initialize();
+ // Startup initializations
+ init_bitboards();
+ init_uci_options();
+ Position::init_zobrist();
+ Position::init_piece_square_tables();
+ init_eval(1);
+ init_kpk_bitbase();
+ init_threads();
#ifdef USE_CALLGRIND
CALLGRIND_START_INSTRUMENTATION;
#endif
- if (argc <= 1)
+ if (argc < 2)
{
// Print copyright notice
- cout << engine_name()
- << " by Tord Romstad, Marco Costalba, Joona Kiiski" << endl;
+ cout << engine_name() << " by " << engine_author() << endl;
if (CpuHasPOPCNT)
cout << "Good! CPU has hardware POPCNT." << endl;
- // Enter UCI mode
- uci_main_loop();
+ // Wait for a command from the user, and passes this command to
+ // execute_uci_command() and also intercepts EOF from stdin to
+ // ensure that we exit gracefully if the GUI dies unexpectedly.
+ string cmd;
+ while (getline(cin, cmd) && execute_uci_command(cmd)) {}
}
- else // Process command line arguments
- {
- if (string(argv[1]) != "bench" || argc > 7)
- cout << "Usage: stockfish bench [hash size = 128] [threads = 1] "
- << "[limit = 12] [fen positions file = default] "
- << "[depth, time, perft or node limited = depth]" << endl;
- else
- benchmark(argc, argv);
- }
-
- Application::free_resources();
+ else if (string(argv[1]) == "bench" && argc < 8)
+ benchmark(argc, argv);
+ else
+ cout << "Usage: stockfish bench [hash size = 128] [threads = 1] "
+ << "[limit = 12] [fen positions file = default] "
+ << "[depth, time, perft or node limited = depth]" << endl;
+
+ exit_threads();
+ quit_eval();
return 0;
}