update source to Ceph Pacific 16.2.2

[ceph.git] / ceph / src / jaegertracing / thrift / lib / lua / TServer.lua

diff --git a/ceph/src/jaegertracing/thrift/lib/lua/TServer.lua b/ceph/src/jaegertracing/thrift/lib/lua/TServer.lua
new file mode 100644 (file)
index 0000000..4e37d58
--- /dev/null
+++ b/ceph/src/jaegertracing/thrift/lib/lua/TServer.lua
@@ -0,0 +1,140 @@
+--
+-- Licensed to the Apache Software Foundation (ASF) under one
+-- or more contributor license agreements. See the NOTICE file
+-- distributed with this work for additional information
+-- regarding copyright ownership. The ASF licenses this file
+-- to you 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 'Thrift'
+require 'TFramedTransport'
+require 'TBinaryProtocol'
+
+-- TServer
+TServer = __TObject:new{
+  __type = 'TServer'
+}
+
+-- 2 possible constructors
+--   1. {processor, serverTransport}
+--   2. {processor, serverTransport, transportFactory, protocolFactory}
+function TServer:new(args)
+  if ttype(args) ~= 'table' then
+    error('TServer must be initialized with a table')
+  end
+  if args.processor == nil then
+    terror('You must provide ' .. ttype(self) .. ' with a processor')
+  end
+  if args.serverTransport == nil then
+    terror('You must provide ' .. ttype(self) .. ' with a serverTransport')
+  end
+
+  -- Create the object
+  local obj = __TObject.new(self, args)
+
+  if obj.transportFactory then
+    obj.inputTransportFactory = obj.transportFactory
+    obj.outputTransportFactory = obj.transportFactory
+    obj.transportFactory = nil
+  else
+    obj.inputTransportFactory = TFramedTransportFactory:new{}
+    obj.outputTransportFactory = obj.inputTransportFactory
+  end
+
+  if obj.protocolFactory then
+    obj.inputProtocolFactory = obj.protocolFactory
+    obj.outputProtocolFactory = obj.protocolFactory
+    obj.protocolFactory = nil
+  else
+    obj.inputProtocolFactory = TBinaryProtocolFactory:new{}
+    obj.outputProtocolFactory = obj.inputProtocolFactory
+  end
+
+  -- Set the __server variable in the handler so we can stop the server
+  obj.processor.handler.__server = self
+
+  return obj
+end
+
+function TServer:setServerEventHandler(handler)
+  self.serverEventHandler = handler
+end
+
+function TServer:_clientBegin(content, iprot, oprot)
+  if self.serverEventHandler and
+    type(self.serverEventHandler.clientBegin) == 'function' then
+    self.serverEventHandler:clientBegin(iprot, oprot)
+  end
+end
+
+function TServer:_preServe()
+  if self.serverEventHandler and
+    type(self.serverEventHandler.preServe) == 'function' then
+    self.serverEventHandler:preServe(self.serverTransport:getSocketInfo())
+  end
+end
+
+function TServer:_handleException(err)
+  if string.find(err, 'TTransportException') == nil then
+    print(err)
+  end
+end
+
+function TServer:serve() end
+function TServer:handle(client)
+  local itrans, otrans =
+    self.inputTransportFactory:getTransport(client),
+    self.outputTransportFactory:getTransport(client)
+  local iprot, oprot =
+    self.inputProtocolFactory:getProtocol(itrans),
+    self.outputProtocolFactory:getProtocol(otrans)
+
+  self:_clientBegin(iprot, oprot)
+  while true do
+    local ret, err = pcall(self.processor.process, self.processor, iprot, oprot)
+    if ret == false and err then
+      if not string.find(err, "TTransportException") then
+        self:_handleException(err)
+      end
+      break
+    end
+  end
+  itrans:close()
+  otrans:close()
+end
+
+function TServer:close()
+  self.serverTransport:close()
+end
+
+-- TSimpleServer
+--  Single threaded server that handles one transport (connection)
+TSimpleServer = __TObject:new(TServer, {
+  __type = 'TSimpleServer',
+  __stop = false
+})
+
+function TSimpleServer:serve()
+  self.serverTransport:listen()
+  self:_preServe()
+  while not self.__stop do
+    client = self.serverTransport:accept()
+    self:handle(client)
+  end
+  self:close()
+end
+
+function TSimpleServer:stop()
+  self.__stop = true
+end