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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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112 lines
4.1 KiB
112 lines
4.1 KiB
// |
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// |
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// Copyright 2015 gRPC authors. |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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// |
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// |
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#include <memory> |
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#include <sstream> |
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#include "absl/flags/flag.h" |
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#include "absl/log/check.h" |
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#include "absl/log/log.h" |
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#include <grpc/grpc.h> |
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#include <grpcpp/channel.h> |
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#include <grpcpp/client_context.h> |
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#include <grpcpp/support/channel_arguments.h> |
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#include "src/core/lib/gprpp/crash.h" |
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#include "src/proto/grpc/testing/empty.pb.h" |
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#include "src/proto/grpc/testing/messages.pb.h" |
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#include "src/proto/grpc/testing/test.grpc.pb.h" |
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#include "test/cpp/util/create_test_channel.h" |
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#include "test/cpp/util/test_config.h" |
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ABSL_FLAG(int32_t, server_control_port, 0, "Server port for control rpcs."); |
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ABSL_FLAG(int32_t, server_retry_port, 0, |
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"Server port for testing reconnection."); |
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ABSL_FLAG(std::string, server_host, "localhost", "Server host to connect to"); |
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// TODO(Capstan): Consider using absl::Duration |
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ABSL_FLAG(int32_t, max_reconnect_backoff_ms, 0, |
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"Maximum backoff time, or 0 for default."); |
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using grpc::CallCredentials; |
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using grpc::Channel; |
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using grpc::ChannelArguments; |
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using grpc::ClientContext; |
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using grpc::CreateTestChannel; |
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using grpc::Status; |
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using grpc::testing::Empty; |
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using grpc::testing::INSECURE; |
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using grpc::testing::ReconnectInfo; |
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using grpc::testing::ReconnectParams; |
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using grpc::testing::ReconnectService; |
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using grpc::testing::TLS; |
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int main(int argc, char** argv) { |
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grpc::testing::InitTest(&argc, &argv, true); |
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CHECK(absl::GetFlag(FLAGS_server_control_port)); |
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CHECK(absl::GetFlag(FLAGS_server_retry_port)); |
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std::ostringstream server_address; |
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server_address << absl::GetFlag(FLAGS_server_host) << ':' |
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<< absl::GetFlag(FLAGS_server_control_port); |
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std::unique_ptr<ReconnectService::Stub> control_stub( |
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ReconnectService::NewStub( |
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CreateTestChannel(server_address.str(), INSECURE))); |
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ClientContext start_context; |
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ReconnectParams reconnect_params; |
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reconnect_params.set_max_reconnect_backoff_ms( |
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absl::GetFlag(FLAGS_max_reconnect_backoff_ms)); |
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Empty empty_response; |
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Status start_status = |
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control_stub->Start(&start_context, reconnect_params, &empty_response); |
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CHECK(start_status.ok()); |
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LOG(INFO) << "Starting connections with retries."; |
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server_address.str(""); |
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server_address << absl::GetFlag(FLAGS_server_host) << ':' |
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<< absl::GetFlag(FLAGS_server_retry_port); |
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ChannelArguments channel_args; |
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if (absl::GetFlag(FLAGS_max_reconnect_backoff_ms) > 0) { |
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channel_args.SetInt(GRPC_ARG_MAX_RECONNECT_BACKOFF_MS, |
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absl::GetFlag(FLAGS_max_reconnect_backoff_ms)); |
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} |
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std::shared_ptr<Channel> retry_channel = |
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CreateTestChannel(server_address.str(), "foo.test.google.fr", TLS, false, |
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std::shared_ptr<CallCredentials>(), channel_args); |
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// About 13 retries. |
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const int kDeadlineSeconds = 540; |
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// Use any rpc to test retry. |
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std::unique_ptr<ReconnectService::Stub> retry_stub( |
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ReconnectService::NewStub(retry_channel)); |
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ClientContext retry_context; |
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retry_context.set_deadline(std::chrono::system_clock::now() + |
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std::chrono::seconds(kDeadlineSeconds)); |
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Status retry_status = |
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retry_stub->Start(&retry_context, reconnect_params, &empty_response); |
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CHECK(retry_status.error_code() == grpc::StatusCode::DEADLINE_EXCEEDED); |
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LOG(INFO) << "Done retrying, getting final data from server"; |
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ClientContext stop_context; |
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ReconnectInfo response; |
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Status stop_status = control_stub->Stop(&stop_context, Empty(), &response); |
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CHECK(stop_status.ok()); |
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CHECK(response.passed() == true); |
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LOG(INFO) << "Passed"; |
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return 0; |
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}
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