From 1303ec7b53b9a6916b0cb3ac8dfe8ddcef0f6736 Mon Sep 17 00:00:00 2001
From: Moiz Haidry <mhaidry@google.com>
Date: Mon, 5 Nov 2018 16:09:34 -0800
Subject: Added benchmarks for Callback based Unary server

---
 test/cpp/qps/BUILD              |  1 +
 test/cpp/qps/qps_worker.cc      |  2 +
 test/cpp/qps/server.h           |  1 +
 test/cpp/qps/server_callback.cc | 96 +++++++++++++++++++++++++++++++++++++++++
 4 files changed, 100 insertions(+)
 create mode 100644 test/cpp/qps/server_callback.cc

(limited to 'test/cpp/qps')

diff --git a/test/cpp/qps/BUILD b/test/cpp/qps/BUILD
index 2ef7441371..26f43284a6 100644
--- a/test/cpp/qps/BUILD
+++ b/test/cpp/qps/BUILD
@@ -36,6 +36,7 @@ grpc_cc_library(
         "qps_server_builder.cc",
         "qps_worker.cc",
         "server_async.cc",
+        "server_callback.cc",
         "server_sync.cc",
     ],
     hdrs = [
diff --git a/test/cpp/qps/qps_worker.cc b/test/cpp/qps/qps_worker.cc
index d97d95d8f3..23fe72316a 100644
--- a/test/cpp/qps/qps_worker.cc
+++ b/test/cpp/qps/qps_worker.cc
@@ -79,6 +79,8 @@ static std::unique_ptr<Server> CreateServer(const ServerConfig& config) {
       return CreateAsyncServer(config);
     case ServerType::ASYNC_GENERIC_SERVER:
       return CreateAsyncGenericServer(config);
+    case ServerType::CALLBACK_SERVER:
+      return CreateCallbackServer(config);
     default:
       abort();
   }
diff --git a/test/cpp/qps/server.h b/test/cpp/qps/server.h
index 6b1ef93617..89b0e3af4b 100644
--- a/test/cpp/qps/server.h
+++ b/test/cpp/qps/server.h
@@ -152,6 +152,7 @@ class Server {
 std::unique_ptr<Server> CreateSynchronousServer(const ServerConfig& config);
 std::unique_ptr<Server> CreateAsyncServer(const ServerConfig& config);
 std::unique_ptr<Server> CreateAsyncGenericServer(const ServerConfig& config);
+std::unique_ptr<Server> CreateCallbackServer(const ServerConfig& config);
 
 }  // namespace testing
 }  // namespace grpc
diff --git a/test/cpp/qps/server_callback.cc b/test/cpp/qps/server_callback.cc
new file mode 100644
index 0000000000..8bedd44739
--- /dev/null
+++ b/test/cpp/qps/server_callback.cc
@@ -0,0 +1,96 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+#include <grpc/grpc.h>
+#include <grpc/support/alloc.h>
+#include <grpcpp/security/server_credentials.h>
+#include <grpcpp/server.h>
+#include <grpcpp/server_context.h>
+
+#include "src/core/lib/gpr/host_port.h"
+#include "src/proto/grpc/testing/benchmark_service.grpc.pb.h"
+#include "test/cpp/qps/qps_server_builder.h"
+#include "test/cpp/qps/server.h"
+#include "test/cpp/qps/usage_timer.h"
+
+namespace grpc {
+namespace testing {
+
+class BenchmarkCallbackServiceImpl final
+    : public BenchmarkService::ExperimentalCallbackService {
+ public:
+  void UnaryCall(
+      ServerContext* context, const SimpleRequest* request,
+      SimpleResponse* response,
+      experimental::ServerCallbackRpcController* controller) override {
+    auto s = SetResponse(request, response);
+    controller->Finish(s);
+  }
+
+ private:
+  static Status SetResponse(const SimpleRequest* request,
+                            SimpleResponse* response) {
+    if (request->response_size() > 0) {
+      if (!Server::SetPayload(request->response_type(),
+                              request->response_size(),
+                              response->mutable_payload())) {
+        return Status(grpc::StatusCode::INTERNAL, "Error creating payload.");
+      }
+    }
+    return Status::OK;
+  }
+};
+
+class CallbackServer final : public grpc::testing::Server {
+ public:
+  explicit CallbackServer(const ServerConfig& config) : Server(config) {
+    std::unique_ptr<ServerBuilder> builder = CreateQpsServerBuilder();
+
+    auto port_num = port();
+    // Negative port number means inproc server, so no listen port needed
+    if (port_num >= 0) {
+      char* server_address = nullptr;
+      gpr_join_host_port(&server_address, "::", port_num);
+      builder->AddListeningPort(server_address,
+                                Server::CreateServerCredentials(config));
+      gpr_free(server_address);
+    }
+
+    ApplyConfigToBuilder(config, builder.get());
+
+    builder->RegisterService(&service_);
+
+    impl_ = builder->BuildAndStart();
+  }
+
+  std::shared_ptr<Channel> InProcessChannel(
+      const ChannelArguments& args) override {
+    return impl_->InProcessChannel(args);
+  }
+
+ private:
+  BenchmarkCallbackServiceImpl service_;
+  std::unique_ptr<grpc::Server> impl_;
+};
+
+std::unique_ptr<grpc::testing::Server> CreateCallbackServer(
+    const ServerConfig& config) {
+  return std::unique_ptr<Server>(new CallbackServer(config));
+}
+
+}  // namespace testing
+}  // namespace grpc
-- 
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