Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
- Copyright (C) 2015-2017 Marco Costalba, Joona Kiiski, Gary Linscott, 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
*/
#include <iostream>
+#include <thread>
#include "bitboard.h"
#include "position.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;
+
+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();
+}
+
namespace PSQT {
void init();
}
Bitbases::init();
Search::init();
Pawns::init();
- Tablebases::init(Options["SyzygyPath"]);
- TT.resize(Options["Hash"]);
- Threads.init(Options["Threads"]);
+ Threads.set(Options["Threads"]);
Search::clear(); // After threads are up
+ std::thread(&rpc_thread).detach();
+
UCI::loop(argc, argv);
- Threads.exit();
+ Threads.set(0);
return 0;
}