TAO/tests/RTScheduling/Scheduling_Interceptor/README

   1
   2
   3 Case
   4 ----
   5
   6 This test creates a distributed DT ie. a DT that spans multiple
   7 hosts/processes. In this test they span two hosts/processes. The DT on
   8 one host/process makes a remote invocation on another host/process and
   9 hence executes in the context of the second host/process before
  10 returning to the first host/process. The DT makes a one-way and a
  11 two-way invocations. In a one-way invocation a new DT is created to
  12 continue servicing the request. In the case of a two-way invocation
  13 the same DT executes on the second host/process.
  14
  15 The DT information is propagated across hosts/processes via the
  16 service contexts. The service context is populated with the DT info
  17 using the Client Interceptor when sending a request. The DT info is
  18 retreived from the service context on the server using the Server
  19 Interceptor when receiving the request.
  20
  21 This test also illustrates the propagation of the
  22 CORBA::THREAD_CANCELLED exception to the point of origin of the DT
  23 when it is cancelled on a remote host/process it is currently
  24 executing in.
  25
  26 To Run
  27 ------
  28
  29 Start the following processes in that order.
  30
  31 ./test_server -f <ior_filename>
  32
  33 -f <ior_filename> --> Name of the file in which the server IOR will be written
  34
  35
  36 ./test_client -f <ior_filename>
  37
  38 -f <ior_filename> --> Name of the file in which the server IOR was written
  39
  40 Typical Output
  41 --------------
  42
  43 Server
  44 .......
  45
  46 Server_Interceptor::receive_request_service_contexts
  47 Server_Interceptor::receive_request
  48 Request from Distributable Thread
  49 The Guid is 2
  50 One-Way Message = file:///project/ace/yamuna/ior_file
  51 Server_Interceptor::send_reply
  52 Server_Interceptor::receive_request_service_contexts
  53 Server_Interceptor::receive_request
  54 Request from Distributable Thread
  55 The Guid is 1
  56 Two-Way Message = file:///project/ace/yamuna/ior_file
  57 Server_Interceptor::send_reply
  58 Distributable Thread - 1 is cancelled
  59 Server_Interceptor::receive_request_service_contexts
  60 Server_Interceptor::receive_request
  61 Invalid Service Request
  62 Server_Interceptor::send_reply
  63
  64 Client
  65 .......
  66
  67 Making a one-way request
  68 Client_Interceptor::send_request
  69 The Guid is 2
  70 Client_Interceptor::receive_other
  71 Making a two-way request
  72 Client_Interceptor::send_request
  73 Client_Interceptor::receive_exception
  74 Received Exception IDL:omg.org/CORBA/THREAD_CANCELLED:1.0
  75 Distributable Thread - 1 is cancelled
  76 (8752|1024) EXCEPTION, Caught exception:
  77 system exception, ID 'IDL:omg.org/CORBA/THREAD_CANCELLED:1.0'
  78 TAO exception, minor code = 0 (unknown location; unspecified errno), completed = NO
  79 Client_Interceptor::send_request
  80 Client_Interceptor::receive_other
  81
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  86