| A.P.M. Ltd. "ANSAware 4.1 Application Programming in ANSAware", Document RM.102.02, A.P.M. Cambridge Limited, Poseidon House, Castle Park, Cambridge CB3 0RD, UK, February 1993. |
....with small amounts of data, and the second, bulk data transfer. REX uses the bulk transfer mechanism when packets exceed a specified fragmentation threshold. Figure 1 shows a typical REX RPC interaction (slightly simplified for clarity: for a full explanation see the ANSAware reference manual [APM93]) Interaction is initiated by the client sending a call message to the server. The call consists of a REX message header and a data portion containing all of the information necessary for the server to complete the invocation. The client then periodically retransmits this call until either a ....
A.P.M. Ltd. "ANSAware 4.1 Application Programming in ANSAware", Document RM.102.02, A.P.M. Cambridge Limited, Poseidon House, Castle Park, Cambridge CB3 0RD, UK, February 1993.
....Retry interval Retry interval Application delay Figure 2(a) Simplified REX RPC. CLIENT SERVER ACK ACK CALL REPLY Application delay Figure 2(b) Simplified QEX RPC. Figure 2(a) shows a REX RPC interaction (slightly simplified for clarity: for a full explanation see the ANSAware reference manual [APM93]) A call is sent to the server process. Providing it arrives, the server processes the request and responds with its reply. In case the call was lost, the client will send a retry after a fixed interval until either an acknowledgement or the reply is received. When the server detects a duplicate ....
A.P.M. Ltd. "ANSAware 4.1 Application Programming in ANSAware", Document RM.102.02, A.P.M. Cambridge Limited, Poseidon House, Castle Park, Cambridge CB3 0RD, UK, February 1993.
....Common Object Request Broker [OMG91] the Open Software Foundation s Distributed Computing Environment [OSF92] and the ISO s ODP standard [ISO95a, ISO95b] Our platform is based on the latter standard. More specifically, the implementation of our platform is based on the ANSAware software suite [APM93]. This software suite is itself based on the ANSA architecture which has had a profound influence on the RM ODP. Thus, the platform realises many of the concepts contained within the RM ODP while making a number of simplifying assumptions to allow efficient implementation. 4.1. The ANSAware ....
A.P.M. Ltd. "ANSAware 4.1 Application Programming in ANSAware", Document RM.102.02, A.P.M. Cambridge Limited, Poseidon House, Castle Park, Cambridge CB3 0RD, UK, February 1993.
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