chore: import upstream snapshot with attribution

2026-07-13 13:29:29 +08:00
commit f52cf32e56
1718 changed files with 366293 additions and 0 deletions
@@ -0,0 +1,118 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you 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.
+
+// A server to receive EchoRequest and send back EchoResponse.
+
+#include <gflags/gflags.h>
+#include <butil/logging.h>
+#include <brpc/server.h>
+#include <json2pb/pb_to_json.h>
+#include "echo.pb.h"
+
+DEFINE_bool(send_attachment, true, "Carry attachment along with response");
+DEFINE_int32(port, 8003, "TCP Port of this server");
+DEFINE_int32(idle_timeout_s, -1, "Connection will be closed if there is no "
+             "read/write operations during the last `idle_timeout_s'");
+
+// Your implementation of example::EchoService
+class EchoServiceImpl : public example::EchoService {
+public:
+    EchoServiceImpl() {}
+    virtual ~EchoServiceImpl() {}
+    virtual void Echo(google::protobuf::RpcController* cntl_base,
+                      const example::EchoRequest* request,
+                      example::EchoResponse* response,
+                      google::protobuf::Closure* done) {
+        // This object helps you to call done->Run() in RAII style. If you need
+        // to process the request asynchronously, pass done_guard.release().
+        brpc::ClosureGuard done_guard(done);
+
+        brpc::Controller* cntl =
+            static_cast<brpc::Controller*>(cntl_base);
+
+        // optional: set a callback function which is called after response is sent
+        // and before cntl/req/res is destructed.
+        cntl->set_after_rpc_resp_fn(std::bind(&EchoServiceImpl::CallAfterRpc,
+            std::placeholders::_1, std::placeholders::_2, std::placeholders::_3));
+
+        // The purpose of following logs is to help you to understand
+        // how clients interact with servers more intuitively. You should 
+        // remove these logs in performance-sensitive servers.
+        LOG(INFO) << "Received request[log_id=" << cntl->log_id() 
+                  << "] from " << cntl->remote_side()
+                  << ": " << request->message()
+                  << " (attached=" << cntl->request_attachment() << ")";
+
+        // Fill response.
+        response->set_message(request->message());
+
+        // You can compress the response by setting Controller, but be aware
+        // that compression may be costly, evaluate before turning on.
+        // cntl->set_response_compress_type(brpc::COMPRESS_TYPE_GZIP);
+
+        if (FLAGS_send_attachment) {
+            // Set attachment which is wired to network directly instead of
+            // being serialized into protobuf messages.
+            cntl->response_attachment().append("bar");
+        }
+    }
+
+    // optional
+    static void CallAfterRpc(brpc::Controller* cntl,
+                        const google::protobuf::Message* req,
+                        const google::protobuf::Message* res) {
+        // at this time res is already sent to client, but cntl/req/res is not destructed
+        std::string req_str;
+        std::string res_str;
+        json2pb::ProtoMessageToJson(*req, &req_str, NULL);
+        json2pb::ProtoMessageToJson(*res, &res_str, NULL);
+        LOG(INFO) << "req:" << req_str
+                    << " res:" << res_str;
+    }
+};
+
+int main(int argc, char* argv[]) {
+    // Parse gflags. We recommend you to use gflags as well.
+    GFLAGS_NAMESPACE::ParseCommandLineFlags(&argc, &argv, true);
+
+    // Generally you only need one Server.
+    brpc::Server server;
+
+    // Instance of your service.
+    EchoServiceImpl echo_service_impl;
+
+    // Add the service into server. Notice the second parameter, because the
+    // service is put on stack, we don't want server to delete it, otherwise
+    // use brpc::SERVER_OWNS_SERVICE.
+    if (server.AddService(&echo_service_impl, 
+                          brpc::SERVER_DOESNT_OWN_SERVICE) != 0) {
+        LOG(ERROR) << "Fail to add service";
+        return -1;
+    }
+
+    // Start the server.
+    brpc::ServerOptions options;
+    options.idle_timeout_sec = FLAGS_idle_timeout_s;
+    if (server.Start(FLAGS_port, &options) != 0) {
+        LOG(ERROR) << "Fail to start EchoServer";
+        return -1;
+    }
+
+    // Wait until Ctrl-C is pressed, then Stop() and Join() the server.
+    server.RunUntilAskedToQuit();
+    return 0;
+}