Analyze usage examples of tcp interactive thrift

Apache Thrift is an efficient framework implemented by Facebook that supports remote service invocation in multiple programming languages.

• Install thrift Download from the official website and install it according to ./configure, make, make install. For other systems, please refer to the official website http://thrift.apache.org/docs/install/

• Define thrift file, which is equivalent to the interface definition of both communication parties.

  bool Boolean, one byte * i8 (byte) Signed 8-bit integer * i16 Signed 16-bit integer *
   i32 Signed 32-bit integer *
   i64 Signed 64-bit integer * 
  double 64-bit floating point value * string String * binary Blob (byte array) 
  * map<t1,t2> Map from one type to another 
  * list<t1> Ordered list of one type 
  * set<t1> Set of unique elements of one type

• Use thrift to generate the thrift definition The code corresponds to various languages. I mainly use python, but other c++ and java can also be used. The command is thrift --gen

• ##server and When writing the client, the server should consider non-blocking and multi-process to ensure normal service. The classes generated by thrift should be called to correspond to the defined data types.

  def init_handler():    """ sub-process init handler """
      signal.signal(signal.SIGINT, signal.SIG_DFL)
      signal.signal(signal.SIGTERM, signal.SIG_DFL)
      signal.signal(signal.SIGHUP, signal.SIG_DFL)
      signal.signal(signal.SIGUSR1, debug)def main():    """ The main entrance """
      port = sys.argv[1]
      signal.signal(signal.SIGINT, exit_signal_handler)
      signal.signal(signal.SIGTERM, exit_signal_handler)
      signal.signal(signal.SIGHUP, exit_signal_handler)
      signal.signal(signal.SIGUSR1, debug)
      gc.set_threshold(20000, 10, 10)
      handler = MaitreyaHandler()
      processor = Maitreya.Processor(handler)
      transport = TSocket.TServerSocket(port=port)
      tfactory = TTransport.TBufferedTransportFactory()
      pfactory = TBinaryProtocol.TBinaryProtocolFactory()    # server = TProcessPoolServer(processor, transport, tfactory, pfactory)
      server = TGeventServer.TGeventProcessPoolServer(processor, transport, tfactory, pfactory)
      server.setNumWorkers(WORKER_NUM)
      server.setPostForkCallback(init_handler)    print "server started..."
      server.serve()

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