1 files changed, 78 insertions, 0 deletions
diff --git a/src/ruby/end2end/graceful_sig_stop_client.rb b/src/ruby/end2end/graceful_sig_stop_client.rb
new file mode 100755
index 0000000000..b672dc3f2a
--- /dev/null
+++ b/src/ruby/end2end/graceful_sig_stop_client.rb
@@ -0,0 +1,78 @@
+#!/usr/bin/env ruby
+
+# Copyright 2015 gRPC authors.
+#
+# Licensed 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.
+
+require_relative './end2end_common'
+
+# Test client. Sends RPC's as normal but process also has signal handlers
+class SigHandlingClientController < ClientControl::ClientController::Service
+  def initialize(srv, stub)
+    @srv = srv
+    @stub = stub
+  end
+
+  def do_echo_rpc(req, _)
+    response = @stub.echo(Echo::EchoRequest.new(request: req.request))
+    fail 'bad response' unless response.response == req.request
+    ClientControl::Void.new
+  end
+
+  def shutdown(_, _)
+    # Spawn a new thread because RpcServer#stop is
+    # synchronous and blocks until either this RPC has finished,
+    # or the server's "poll_period" seconds have passed.
+    @shutdown_thread = Thread.new do
+      @srv.stop
+    end
+    ClientControl::Void.new
+  end
+
+  def join_shutdown_thread
+    @shutdown_thread.join
+  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!
+
+  # The "shutdown" RPC should end very quickly.
+  # Allow a few seconds to be safe.
+  srv = new_rpc_server_for_testing(poll_period: 3)
+  srv.add_http2_port("0.0.0.0:#{client_control_port}",
+                     :this_port_is_insecure)
+  stub = Echo::EchoServer::Stub.new("localhost:#{server_port}",
+                                    :this_channel_is_insecure)
+  control_service = SigHandlingClientController.new(srv, stub)
+  srv.handle(control_service)
+  server_thread = Thread.new do
+    srv.run_till_terminated_or_interrupted(['int'])
+  end
+  srv.wait_till_running
+  # send a first RPC to notify the parent process that we've started
+  stub.echo(Echo::EchoRequest.new(request: 'client/child started'))
+  server_thread.join
+  control_service.join_shutdown_thread
+end
+
+main