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 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
