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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
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105 lines
3.3 KiB
105 lines
3.3 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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*is % allowed in string |
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*/ |
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#include <memory> |
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#include <string> |
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#include <gflags/gflags.h> |
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#include <grpc/support/log.h> |
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#include <grpcpp/grpcpp.h> |
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#include "src/proto/grpc/testing/metrics.grpc.pb.h" |
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#include "src/proto/grpc/testing/metrics.pb.h" |
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#include "test/cpp/util/metrics_server.h" |
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#include "test/cpp/util/test_config.h" |
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int kDeadlineSecs = 10; |
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DEFINE_string(metrics_server_address, "localhost:8081", |
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"The metrics server addresses in the fomrat <hostname>:<port>"); |
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DEFINE_int32(deadline_secs, kDeadlineSecs, |
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"The deadline (in seconds) for RCP call"); |
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DEFINE_bool(total_only, false, |
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"If true, this prints only the total value of all gauges"); |
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using grpc::testing::EmptyMessage; |
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using grpc::testing::GaugeResponse; |
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using grpc::testing::MetricsService; |
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using grpc::testing::MetricsServiceImpl; |
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// Do not log anything |
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void BlackholeLogger(gpr_log_func_args* /*args*/) {} |
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// Prints the values of all Gauges (unless total_only is set to 'true' in which |
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// case this only prints the sum of all gauge values). |
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bool PrintMetrics(std::unique_ptr<MetricsService::Stub> stub, bool total_only, |
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int deadline_secs) { |
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grpc::ClientContext context; |
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EmptyMessage message; |
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std::chrono::system_clock::time_point deadline = |
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std::chrono::system_clock::now() + std::chrono::seconds(deadline_secs); |
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context.set_deadline(deadline); |
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std::unique_ptr<grpc::ClientReader<GaugeResponse>> reader( |
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stub->GetAllGauges(&context, message)); |
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GaugeResponse gauge_response; |
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long overall_qps = 0; |
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while (reader->Read(&gauge_response)) { |
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if (gauge_response.value_case() == GaugeResponse::kLongValue) { |
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if (!total_only) { |
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std::cout << gauge_response.name() << ": " |
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<< gauge_response.long_value() << std::endl; |
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} |
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overall_qps += gauge_response.long_value(); |
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} else { |
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std::cout << "Gauge '" << gauge_response.name() << "' is not long valued" |
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<< std::endl; |
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} |
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} |
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std::cout << overall_qps << std::endl; |
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const grpc::Status status = reader->Finish(); |
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if (!status.ok()) { |
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std::cout << "Error in getting metrics from the client" << std::endl; |
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} |
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return status.ok(); |
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} |
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int main(int argc, char** argv) { |
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grpc::testing::InitTest(&argc, &argv, true); |
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// The output of metrics client is in some cases programmatically parsed (for |
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// example by the stress test framework). So, we do not want any of the log |
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// from the grpc library appearing on stdout. |
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gpr_set_log_function(BlackholeLogger); |
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std::shared_ptr<grpc::Channel> channel(grpc::CreateChannel( |
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FLAGS_metrics_server_address, grpc::InsecureChannelCredentials())); |
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if (!PrintMetrics(MetricsService::NewStub(channel), FLAGS_total_only, |
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FLAGS_deadline_secs)) { |
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return 1; |
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} |
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return 0; |
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}
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