1 /*
2 *
3 * Copyright 2015 gRPC authors.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 */
18
19 #include <memory>
20 #include <sstream>
21
22 #include <gflags/gflags.h>
23 #include <grpc/grpc.h>
24 #include <grpc/support/log.h>
25 #include <grpcpp/channel.h>
26 #include <grpcpp/client_context.h>
27 #include <grpcpp/support/channel_arguments.h>
28 #include "src/proto/grpc/testing/empty.pb.h"
29 #include "src/proto/grpc/testing/messages.pb.h"
30 #include "src/proto/grpc/testing/test.grpc.pb.h"
31 #include "test/cpp/util/create_test_channel.h"
32 #include "test/cpp/util/test_config.h"
33
34 DEFINE_int32(server_control_port, 0, "Server port for control rpcs.");
35 DEFINE_int32(server_retry_port, 0, "Server port for testing reconnection.");
36 DEFINE_string(server_host, "localhost", "Server host to connect to");
37 DEFINE_int32(max_reconnect_backoff_ms, 0,
38 "Maximum backoff time, or 0 for default.");
39
40 using grpc::CallCredentials;
41 using grpc::Channel;
42 using grpc::ChannelArguments;
43 using grpc::ClientContext;
44 using grpc::CreateTestChannel;
45 using grpc::Status;
46 using grpc::testing::Empty;
47 using grpc::testing::INSECURE;
48 using grpc::testing::ReconnectInfo;
49 using grpc::testing::ReconnectParams;
50 using grpc::testing::ReconnectService;
51 using grpc::testing::TLS;
52
main(int argc,char ** argv)53 int main(int argc, char** argv) {
54 grpc::testing::InitTest(&argc, &argv, true);
55 GPR_ASSERT(FLAGS_server_control_port);
56 GPR_ASSERT(FLAGS_server_retry_port);
57
58 std::ostringstream server_address;
59 server_address << FLAGS_server_host << ':' << FLAGS_server_control_port;
60 std::unique_ptr<ReconnectService::Stub> control_stub(
61 ReconnectService::NewStub(
62 CreateTestChannel(server_address.str(), INSECURE)));
63 ClientContext start_context;
64 ReconnectParams reconnect_params;
65 reconnect_params.set_max_reconnect_backoff_ms(FLAGS_max_reconnect_backoff_ms);
66 Empty empty_response;
67 Status start_status =
68 control_stub->Start(&start_context, reconnect_params, &empty_response);
69 GPR_ASSERT(start_status.ok());
70
71 gpr_log(GPR_INFO, "Starting connections with retries.");
72 server_address.str("");
73 server_address << FLAGS_server_host << ':' << FLAGS_server_retry_port;
74 ChannelArguments channel_args;
75 if (FLAGS_max_reconnect_backoff_ms > 0) {
76 channel_args.SetInt(GRPC_ARG_MAX_RECONNECT_BACKOFF_MS,
77 FLAGS_max_reconnect_backoff_ms);
78 }
79 std::shared_ptr<Channel> retry_channel =
80 CreateTestChannel(server_address.str(), "foo.test.google.fr", TLS, false,
81 std::shared_ptr<CallCredentials>(), channel_args);
82
83 // About 13 retries.
84 const int kDeadlineSeconds = 540;
85 // Use any rpc to test retry.
86 std::unique_ptr<ReconnectService::Stub> retry_stub(
87 ReconnectService::NewStub(retry_channel));
88 ClientContext retry_context;
89 retry_context.set_deadline(std::chrono::system_clock::now() +
90 std::chrono::seconds(kDeadlineSeconds));
91 Status retry_status =
92 retry_stub->Start(&retry_context, reconnect_params, &empty_response);
93 GPR_ASSERT(retry_status.error_code() == grpc::StatusCode::DEADLINE_EXCEEDED);
94 gpr_log(GPR_INFO, "Done retrying, getting final data from server");
95
96 ClientContext stop_context;
97 ReconnectInfo response;
98 Status stop_status = control_stub->Stop(&stop_context, Empty(), &response);
99 GPR_ASSERT(stop_status.ok());
100 GPR_ASSERT(response.passed() == true);
101 gpr_log(GPR_INFO, "Passed");
102 return 0;
103 }
104