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) {
- 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 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(pos.key(), found);
+ TTEntry *entry = TT.probe(key, found);
response->set_found(found);
if (found) {
- response->set_move(entry->move());
- response->set_value(entry->value());
- response->set_eval(entry->eval());
+ 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_bound(entry->bound());
+ response->set_eval(eval);
+ response->set_value(value);
+ response->set_bound(HashProbeMove::ValueBound(bound));
}
- return Status::OK;
}
};