/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
- Copyright (C) 2008-2010 Marco Costalba, Joona Kiiski, Tord Romstad
+ Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
+ Copyright (C) 2015-2019 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-// To profile with callgrind uncomment following line
-//#define USE_CALLGRIND
-
-
-////
-//// Includes
-////
-
#include <iostream>
-#include <string>
+#include <thread>
#include "bitboard.h"
-#include "bitcount.h"
-#include "endgame.h"
-#include "evaluate.h"
-#include "material.h"
-#include "misc.h"
#include "position.h"
#include "search.h"
#include "thread.h"
-#include "ucioption.h"
+#include "tt.h"
+#include "uci.h"
+#include "syzygy/tbprobe.h"
+
+#include <grpc/grpc.h>
+#include <grpc++/server.h>
+#include <grpc++/server_builder.h>
+#include "hashprobe.grpc.pb.h"
+
+using grpc::Server;
+using grpc::ServerBuilder;
+using grpc::ServerContext;
+using grpc::Status;
+using grpc::StatusCode;
+using namespace hashprobe;
+
+class HashProbeImpl final : public HashProbe::Service {
+public:
+ Status Probe(ServerContext* context,
+ const HashProbeRequest* request,
+ HashProbeResponse *response) {
+ Position pos(request->fen(), /*isChess960=*/false, Threads.main());
+ if (!pos.pos_is_ok()) {
+ return Status(StatusCode::INVALID_ARGUMENT, "Invalid FEN");
+ }
+
+ bool invert = (pos.side_to_move() == BLACK);
+
+ HashProbeMove *root_move = response->add_move();
+ root_move->set_move(MOVE_NONE);
+ ProbeMove(pos.key(), invert, root_move);
+
+ MoveList<LEGAL> moves(pos);
+ for (const ExtMove* em = moves.begin(); em != moves.end(); ++em) {
+ HashProbeMove *move = response->add_move();
+ move->set_move(em->move);
+ ProbeMove(pos.key_after(em->move), !invert, move);
+ }
+
+ return Status::OK;
+ }
+
+ void ProbeMove(const int64_t key, bool invert, HashProbeMove* response) {
+ bool found;
+ TTEntry *entry = TT.probe(key, found);
+ response->set_found(found);
+ if (found) {
+ Value value = entry->value();
+ Value eval = entry->eval();
+ Bound bound = entry->bound();
+
+ if (invert) {
+ value = -value;
+ eval = -eval;
+ if (bound == BOUND_UPPER) {
+ bound = BOUND_LOWER;
+ } else if (bound == BOUND_LOWER) {
+ bound = BOUND_UPPER;
+ }
+ }
+
+ response->set_pv_move(entry->move());
+ response->set_depth(entry->depth());
+ response->set_eval(eval);
+ response->set_value(value);
+ response->set_bound(HashProbeMove::ValueBound(bound));
+ }
+ }
+};
+
+void rpc_thread()
+{
+ std::string server_address("0.0.0.0:50051");
+ HashProbeImpl service;
+
+ ServerBuilder builder;
+ builder.AddListeningPort(server_address, grpc::InsecureServerCredentials());
+ builder.RegisterService(&service);
+ std::unique_ptr<Server> server(builder.BuildAndStart());
+ std::cout << "Server listening on " << server_address << std::endl;
+ server->Wait();
+}
-#ifdef USE_CALLGRIND
-#include <valgrind/callgrind.h>
-#endif
+namespace PSQT {
+ void init();
+}
+
+int main(int argc, char* argv[]) {
-using namespace std;
+ std::cout << engine_info() << std::endl;
-extern bool execute_uci_command(const string& cmd);
-extern void benchmark(int argc, char* argv[]);
+ UCI::init(Options);
+ PSQT::init();
+ Bitboards::init();
+ Position::init();
+ Bitbases::init();
+ Search::init();
+ Pawns::init();
+ Threads.set(Options["Threads"]);
+ Search::clear(); // After threads are up
-////
-//// Functions
-////
+ std::thread(&rpc_thread).detach();
-int main(int argc, char* argv[]) {
+ UCI::loop(argc, argv);
- // Disable IO buffering
- cout.rdbuf()->pubsetbuf(NULL, 0);
- cin.rdbuf()->pubsetbuf(NULL, 0);
-
- // Startup initializations
- init_direction_table();
- init_bitboards();
- init_uci_options();
- Position::init_zobrist();
- Position::init_piece_square_tables();
- init_eval(1);
- init_bitbases();
- init_search();
- init_threads();
-
-#ifdef USE_CALLGRIND
- CALLGRIND_START_INSTRUMENTATION;
-#endif
-
- if (argc <= 1)
- {
- // Print copyright notice
- cout << engine_name()
- << " by Tord Romstad, Marco Costalba, Joona Kiiski" << endl;
-
- if (CpuHasPOPCNT)
- cout << "Good! CPU has hardware POPCNT." << endl;
-
- // 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
- {
- 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);
- }
-
- exit_threads();
- quit_eval();
+ Threads.set(0);
return 0;
}