Initial commit for gRPC code.

[stockfish] / src / main.cpp

diff --git a/src/main.cpp b/src/main.cpp
index fa821151359ac31cb904ebfd66226ae89d49955a..6c1aa034c318e9802c9e082d4db2394cc0ded307 100644 (file)
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,7 +1,8 @@
 /*
   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
@@ -17,93 +18,88 @@
   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;
+
+class HashProbeImpl final : public HashProbe::Service {
+public:
+       Status Probe(ServerContext* context,
+                    const HashProbeRequest* request,
+                    HashProbeResponse *response) {
+               std::cout << "fen=" << request->fen() << std::endl;
+               Position pos(request->fen(), /*isChess960=*/false, Threads.main());
+               if (!pos.pos_is_ok()) {
+                       return Status(StatusCode::INVALID_ARGUMENT, "Invalid FEN");
+               }
+               std::cout << "parsed=" << pos.fen() << std::endl;
+               bool found;
+               TTEntry *entry = TT.probe(pos.key(), found);
+               response->set_found(found);
+               if (found) {
+                       response->set_move(entry->move());
+                       response->set_value(entry->value());
+                       response->set_eval(entry->eval());
+                       response->set_depth(entry->depth());
+                       response->set_bound(entry->bound());
+               }
+               return Status::OK;
+       }
+};
+       
+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_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 " << engine_author() << 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;
 }