//// Includes
////
+#include <cstdio>
#include <iostream>
#include <string>
#include "bitboard.h"
#include "bitcount.h"
-#include "direction.h"
#include "endgame.h"
#include "evaluate.h"
#include "material.h"
using namespace std;
-extern void uci_main_loop();
+extern bool execute_uci_command(const string& cmd);
extern void benchmark(int argc, char* argv[]);
////
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);
// Startup initializations
- init_direction_table();
init_bitboards();
init_uci_options();
Position::init_zobrist();
if (argc <= 1)
{
// 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, by
+ // translating EOF to the "quit" command. This ensures that we
+ // exit gracefully if the GUI dies unexpectedly.
+ string cmd;
+
+ do {
+ // Wait for a command from stdin
+ if (!getline(cin, cmd))
+ cmd = "quit";
+
+ } while (execute_uci_command(cmd));
}
else // Process command line arguments
{