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#!/usr/bin/env ruby
# Copyright 2015, Google Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
require_relative './end2end_common'
class ChannelClosingClientController < ClientControl::ClientController::Service
def initialize(ch)
@ch = ch
end
def shutdown(_, _)
@ch.close
ClientControl::Void.new
end
end
def main
client_control_port = ''
server_port = ''
OptionParser.new do |opts|
opts.on('--client_control_port=P', String) do |p|
client_control_port = p
end
opts.on('--server_port=P', String) do |p|
server_port = p
end
end.parse!
ch = GRPC::Core::Channel.new("localhost:#{server_port}", {}, :this_channel_is_insecure)
srv = GRPC::RpcServer.new
thd = Thread.new do
srv.add_http2_port("0.0.0.0:#{client_control_port}", :this_port_is_insecure)
srv.handle(ChannelClosingClientController.new(ch))
srv.run
end
# this should break out with an exception once the channel is closed
loop do
begin
state = ch.connectivity_state(true)
ch.watch_connectivity_state(state, Time.now + 360)
rescue RuntimeError => e
STDERR.puts "(expected) error occurred: #{e.inspect}"
break
end
end
srv.stop
thd.join
end
main
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