1#!/usr/bin/env ruby 2 3# Copyright 2015 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 17require_relative './end2end_common' 18 19# Start polling the channel state in both the main thread 20# and a child thread. Try to get the driver to send process-ending 21# interrupt while both a child thread and the main thread are in the 22# middle of a blocking connectivity_state call. 23def main 24 STDERR.puts 'sig_int_during_channel_watch_client.rb main' 25 server_port = '' 26 OptionParser.new do |opts| 27 opts.on('--client_control_port=P', String) do 28 STDERR.puts 'client_control_port not used' 29 end 30 opts.on('--server_port=P', String) do |p| 31 server_port = p 32 end 33 end.parse! 34 35 trap('SIGINT') { exit 0 } 36 STDERR.puts 'sig_int_during_channel_watch_client.rb: SIGINT trap has been set' 37 # First, notify the parent process that we're ready for a SIGINT by sending 38 # an RPC 39 begin 40 stub = Echo::EchoServer::Stub.new( 41 "localhost:#{server_port}", :this_channel_is_insecure) 42 stub.echo(ClientControl::DoEchoRpcRequest.new) 43 rescue => e 44 fail "received error:|#{e}| while sending an RPC to the parent process " \ 45 'to indicate that the SIGINT trap has been set' 46 end 47 48 thd = Thread.new do 49 child_thread_channel = GRPC::Core::Channel.new("localhost:#{server_port}", 50 {}, 51 :this_channel_is_insecure) 52 loop do 53 state = child_thread_channel.connectivity_state(false) 54 child_thread_channel.watch_connectivity_state(state, Time.now + 360) 55 end 56 end 57 58 main_channel = GRPC::Core::Channel.new("localhost:#{server_port}", 59 {}, 60 :this_channel_is_insecure) 61 loop do 62 state = main_channel.connectivity_state(false) 63 main_channel.watch_connectivity_state(state, Time.now + 360) 64 end 65 66 thd.join 67end 68 69main 70