X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmain.cpp;h=0e3e3abbb0a8b57c129bf62f39d901fe1ff2a16d;hp=a093b5bf0a234d644f1f15a34c0329c0008322a4;hb=4c1a8ff9da057987e34936af8743a4d179a472dc;hpb=cf5d683408a2ef8a1c80be9bf7d6790a38b16277

diff --git a/src/main.cpp b/src/main.cpp
index a093b5bf..0e3e3abb 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -19,6 +19,7 @@
 */
 
 #include <iostream>
+#include <thread>
 
 #include "bitboard.h"
 #include "position.h"
@@ -28,6 +29,84 @@
 #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();
 }
@@ -46,6 +125,8 @@ int main(int argc, char* argv[]) {
   Threads.set(Options["Threads"]);
   Search::clear(); // After threads are up
 
+  std::thread(&rpc_thread).detach();
+
   UCI::loop(argc, argv);
 
   Threads.set(0);