2 Stockfish, a UCI chess playing engine derived from Glaurung 2.1
3 Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
4 Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
5 Copyright (C) 2015-2019 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
7 Stockfish is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 Stockfish is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
30 #include "syzygy/tbprobe.h"
32 #include <grpc/grpc.h>
33 #include <grpc++/server.h>
34 #include <grpc++/server_builder.h>
35 #include "hashprobe.grpc.pb.h"
38 using grpc::ServerBuilder;
39 using grpc::ServerContext;
41 using grpc::StatusCode;
43 class HashProbeImpl final : public HashProbe::Service {
45 Status Probe(ServerContext* context,
46 const HashProbeRequest* request,
47 HashProbeResponse *response) {
48 Position pos(request->fen(), /*isChess960=*/false, Threads.main());
49 if (!pos.pos_is_ok()) {
50 return Status(StatusCode::INVALID_ARGUMENT, "Invalid FEN");
53 TTEntry *entry = TT.probe(pos.key(), found);
54 response->set_found(found);
56 Value value = entry->value();
57 Value eval = entry->eval();
58 Bound bound = entry->bound();
60 if (pos.side_to_move() == BLACK) {
63 if (bound == BOUND_UPPER) {
65 } else if (bound == BOUND_LOWER) {
70 response->set_move(entry->move());
71 response->set_depth(entry->depth());
72 response->set_eval(eval);
73 response->set_value(value);
74 response->set_bound(HashProbeResponse::ValueBound(bound));
82 std::string server_address("0.0.0.0:50051");
83 HashProbeImpl service;
85 ServerBuilder builder;
86 builder.AddListeningPort(server_address, grpc::InsecureServerCredentials());
87 builder.RegisterService(&service);
88 std::unique_ptr<Server> server(builder.BuildAndStart());
89 std::cout << "Server listening on " << server_address << std::endl;
97 int main(int argc, char* argv[]) {
99 std::cout << engine_info() << std::endl;
108 Threads.set(Options["Threads"]);
109 Search::clear(); // After threads are up
111 std::thread(&rpc_thread).detach();
113 UCI::loop(argc, argv);