1 /*
2 * Copyright (C) 2022 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "host/libs/location/GnssClient.h"
18
19 #include <memory>
20
21 #include <android-base/logging.h>
22 #include <grpcpp/channel.h>
23 #include <grpcpp/support/status.h>
24
25 #include "common/libs/utils/result.h"
26
27 using gnss_grpc_proxy::GnssGrpcProxy;
28 using gnss_grpc_proxy::GpsCoordinates;
29 using gnss_grpc_proxy::SendGpsCoordinatesReply;
30 using gnss_grpc_proxy::SendGpsCoordinatesRequest;
31 using grpc::ClientContext;
32
33 namespace cuttlefish {
34
GnssClient(const std::shared_ptr<grpc::Channel> & channel)35 GnssClient::GnssClient(const std::shared_ptr<grpc::Channel>& channel)
36 : stub_(GnssGrpcProxy::NewStub(channel)) {}
37
SendGpsLocations(int delay,const GpsFixArray & coordinates)38 Result<void> GnssClient::SendGpsLocations(int delay,
39 const GpsFixArray& coordinates) {
40 // Data we are sending to the server.
41 SendGpsCoordinatesRequest request;
42 request.set_delay(delay);
43 for (const auto& loc : coordinates) {
44 GpsCoordinates* curr = request.add_coordinates();
45 curr->set_longitude(loc.longitude);
46 curr->set_latitude(loc.latitude);
47 curr->set_elevation(loc.elevation);
48 }
49
50 // Container for the data we expect from the server.
51 SendGpsCoordinatesReply reply;
52 // Context for the client. It could be used to convey extra information to
53 // the server and/or tweak certain RPC behaviors.
54 ClientContext context;
55 // The actual RPC.
56 grpc::Status status = stub_->SendGpsVector(&context, request, &reply);
57 // Act upon its status.
58 CF_EXPECTF(status.ok(), "GPS data sending failed: {} ({})",
59 status.error_message(),
60 static_cast<std::uint32_t>(status.error_code()));
61
62 LOG(DEBUG) << reply.status();
63
64 return {};
65 }
66
67 } // namespace cuttlefish
68