1#!/usr/bin/env ruby 2 3# Copyright 2016 gRPC authors. 4# 5# Licensed under the Apache License, Version 2.0 (the "License"); 6# you may not use this file except in compliance with the License. 7# You may obtain a copy of the License at 8# 9# http://www.apache.org/licenses/LICENSE-2.0 10# 11# Unless required by applicable law or agreed to in writing, software 12# distributed under the License is distributed on an "AS IS" BASIS, 13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14# See the License for the specific language governing permissions and 15# limitations under the License. 16 17# smoke test for a grpc-using app that receives and 18# handles process-ending signals 19 20require_relative './end2end_common' 21 22# A service that calls back it's received_rpc_callback 23# upon receiving an RPC. Used for synchronization/waiting 24# for child process to start. 25class ClientStartedService < Echo::EchoServer::Service 26 def initialize(received_rpc_callback) 27 @received_rpc_callback = received_rpc_callback 28 end 29 30 def echo(echo_req, _) 31 @received_rpc_callback.call unless @received_rpc_callback.nil? 32 @received_rpc_callback = nil 33 Echo::EchoReply.new(response: echo_req.request) 34 end 35end 36 37def main 38 STDERR.puts 'start server' 39 client_started = false 40 client_started_mu = Mutex.new 41 client_started_cv = ConditionVariable.new 42 received_rpc_callback = proc do 43 client_started_mu.synchronize do 44 client_started = true 45 client_started_cv.signal 46 end 47 end 48 49 client_started_service = ClientStartedService.new(received_rpc_callback) 50 server_runner = ServerRunner.new(client_started_service) 51 server_port = server_runner.run 52 STDERR.puts 'start client' 53 control_stub, client_pid = start_client('./graceful_sig_stop_client.rb', server_port) 54 55 client_started_mu.synchronize do 56 client_started_cv.wait(client_started_mu) until client_started 57 end 58 59 cleanup(control_stub, client_pid, server_runner) 60end 61 62main 63