Line data    Source code

       1             : /*
       2             :  *
       3             :  * Copyright 2015, Google Inc.
       4             :  * All rights reserved.
       5             :  *
       6             :  * Redistribution and use in source and binary forms, with or without
       7             :  * modification, are permitted provided that the following conditions are
       8             :  * met:
       9             :  *
      10             :  *     * Redistributions of source code must retain the above copyright
      11             :  * notice, this list of conditions and the following disclaimer.
      12             :  *     * Redistributions in binary form must reproduce the above
      13             :  * copyright notice, this list of conditions and the following disclaimer
      14             :  * in the documentation and/or other materials provided with the
      15             :  * distribution.
      16             :  *     * Neither the name of Google Inc. nor the names of its
      17             :  * contributors may be used to endorse or promote products derived from
      18             :  * this software without specific prior written permission.
      19             :  *
      20             :  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      21             :  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      22             :  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      23             :  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
      24             :  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      25             :  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
      26             :  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      27             :  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      28             :  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      29             :  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
      30             :  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      31             :  *
      32             :  */
      33             : 
      34             : #include <grpc++/server_builder.h>
      35             : 
      36             : #include <grpc/support/cpu.h>
      37             : #include <grpc/support/log.h>
      38             : #include <grpc++/impl/service_type.h>
      39             : #include <grpc++/server.h>
      40             : #include "src/cpp/server/thread_pool_interface.h"
      41             : #include "src/cpp/server/fixed_size_thread_pool.h"
      42             : 
      43             : namespace grpc {
      44             : 
      45         186 : ServerBuilder::ServerBuilder()
      46         186 :     : max_message_size_(-1), generic_service_(nullptr), thread_pool_(nullptr) {
      47         186 :   grpc_compression_options_init(&compression_options_);
      48         186 : }
      49             : 
      50          39 : std::unique_ptr<ServerCompletionQueue> ServerBuilder::AddCompletionQueue() {
      51          39 :   ServerCompletionQueue* cq = new ServerCompletionQueue();
      52          39 :   cqs_.push_back(cq);
      53          39 :   return std::unique_ptr<ServerCompletionQueue>(cq);
      54             : }
      55             : 
      56         237 : void ServerBuilder::RegisterService(SynchronousService* service) {
      57         237 :   services_.emplace_back(new NamedService<RpcService>(service->service()));
      58         237 : }
      59             : 
      60          55 : void ServerBuilder::RegisterAsyncService(AsynchronousService* service) {
      61          55 :   async_services_.emplace_back(new NamedService<AsynchronousService>(service));
      62          55 : }
      63             : 
      64          82 : void ServerBuilder::RegisterService(const grpc::string& addr,
      65             :                                     SynchronousService* service) {
      66             :   services_.emplace_back(
      67          82 :       new NamedService<RpcService>(addr, service->service()));
      68          82 : }
      69             : 
      70           0 : void ServerBuilder::RegisterAsyncService(const grpc::string& addr,
      71             :                                          AsynchronousService* service) {
      72             :   async_services_.emplace_back(
      73           0 :       new NamedService<AsynchronousService>(addr, service));
      74           0 : }
      75             : 
      76           6 : void ServerBuilder::RegisterAsyncGenericService(AsyncGenericService* service) {
      77           6 :   if (generic_service_) {
      78             :     gpr_log(GPR_ERROR,
      79             :             "Adding multiple AsyncGenericService is unsupported for now. "
      80             :             "Dropping the service %p",
      81           3 :             service);
      82           9 :     return;
      83             :   }
      84           3 :   generic_service_ = service;
      85             : }
      86             : 
      87           0 : void ServerBuilder::SetOption(std::unique_ptr<ServerBuilderOption> option) {
      88           0 :   options_.push_back(std::move(option));
      89           0 : }
      90             : 
      91         186 : void ServerBuilder::AddListeningPort(const grpc::string& addr,
      92             :                                      std::shared_ptr<ServerCredentials> creds,
      93             :                                      int* selected_port) {
      94         186 :   Port port = {addr, creds, selected_port};
      95         186 :   ports_.push_back(port);
      96         186 : }
      97             : 
      98         186 : std::unique_ptr<Server> ServerBuilder::BuildAndStart() {
      99         186 :   bool thread_pool_owned = false;
     100         186 :   if (!async_services_.empty() && !services_.empty()) {
     101          26 :     gpr_log(GPR_ERROR, "Mixing async and sync services is unsupported for now");
     102          26 :     return nullptr;
     103             :   }
     104         160 :   if (!thread_pool_ && !services_.empty()) {
     105         128 :     thread_pool_ = CreateDefaultThreadPool();
     106         128 :     thread_pool_owned = true;
     107             :   }
     108         160 :   ChannelArguments args;
     109         160 :   for (auto option = options_.begin(); option != options_.end(); ++option) {
     110           0 :     (*option)->UpdateArguments(&args);
     111             :   }
     112         160 :   if (max_message_size_ > 0) {
     113          83 :     args.SetInt(GRPC_ARG_MAX_MESSAGE_LENGTH, max_message_size_);
     114             :   }
     115             :   args.SetInt(GRPC_COMPRESSION_ALGORITHM_STATE_ARG,
     116         160 :               compression_options_.enabled_algorithms_bitset);
     117             :   std::unique_ptr<Server> server(
     118         320 :       new Server(thread_pool_, thread_pool_owned, max_message_size_, args));
     119         199 :   for (auto cq = cqs_.begin(); cq != cqs_.end(); ++cq) {
     120          78 :     grpc_server_register_completion_queue(server->server_, (*cq)->cq(),
     121          78 :                                           nullptr);
     122             :   }
     123         453 :   for (auto service = services_.begin(); service != services_.end();
     124             :        service++) {
     125         293 :     if (!server->RegisterService((*service)->host.get(), (*service)->service)) {
     126           0 :       return nullptr;
     127             :     }
     128             :   }
     129         189 :   for (auto service = async_services_.begin(); service != async_services_.end();
     130             :        service++) {
     131          58 :     if (!server->RegisterAsyncService((*service)->host.get(),
     132          58 :                                       (*service)->service)) {
     133           0 :       return nullptr;
     134             :     }
     135             :   }
     136         160 :   if (generic_service_) {
     137           3 :     server->RegisterAsyncGenericService(generic_service_);
     138             :   }
     139         320 :   for (auto port = ports_.begin(); port != ports_.end(); port++) {
     140         160 :     int r = server->AddListeningPort(port->addr, port->creds.get());
     141         160 :     if (!r) return nullptr;
     142         160 :     if (port->selected_port != nullptr) {
     143           0 :       *port->selected_port = r;
     144             :     }
     145             :   }
     146         160 :   auto cqs_data = cqs_.empty() ? nullptr : &cqs_[0];
     147         160 :   if (!server->Start(cqs_data, cqs_.size())) {
     148           0 :     return nullptr;
     149             :   }
     150         320 :   return server;
     151             : }
     152             : 
     153             : }  // namespace grpc