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Aravind Venkataraman
Interprocess Communication
Shared Memory Request/Reply Communication
Concept
Message Passing Remote Procedure Call
Topics of Discussion
• Request/Reply Communication• Remote Procedure Call (RPC)• RPC Architectural Model• RPC Process• RPC Communication Protocols• RPC Design issues• RPC Architectures/Implementations• RPC Industry Examples
Request/Reply Communication
• Synchronous vs. Asynchronous • Client-Server vs. P2P• LAN vs. Distributed Environment• Remote Procedure Call
Design Issues
Remote Procedure Call (RPC) [6]
OSI ModelApplication Layer: FTP, RPC, SSH
Transport Layer: TCP, UDP
Network Layer: IP, ICMP
Data Link Layer: Ethernet, 802.11
Physical Layer: Twisted pair, Optical fiber
RPC Architecture model [3]
Microsoft RPC [3] – RPCSS (RPC System Service) module
RPC Process [3]
RPC Communication Protocols [5]
• Request [R] Protocol• Request Reply [RR] Protocol• Request Reply Acknowledgement [RRA]
RPC Design Issues [1,7]
• Compiler – Interface Description Language (IDL), RPCGEN• Parameter passing • Security – Protected RPC
• CORBA (Common Object Request Broker Architecture)• DCOM (Distributed Component Object Model)• Java RMI (Remote Method Invocation)• Web Services (XML-RPC, SOAP, JSON-RPC)
RPC Architectures/Implementations [4]
Other RPC Industry Implementations [1]
•1984 - ONC RPC/NFS (Sun Microsystems Inc.) • Early 1990s - DCE RPC (Microsoft)• Late 1990’s – ORPC (Object Oriented Programming Community) • 1997 – DCOM (Microsoft)• 2002 - .NET Remoting (Microsoft)• Doors (Solaris)• ICE (Internet Communications Engine)• DCOP - Desktop Communication Protocol (KDE)
SOAP (Service Oriented Architecture Protocol) [8]
<methodResponse> <params> <param> <value><string>South Dakota</string></value> </param> </params> </methodResponse>
• Typical SOAP Request
• Typical SOAP Response
<?xml version="1.0"?> <methodCall> <methodName>examples.getStateName</methodName> <params> <param> <value><i4>40</i4></value> </param> </params> </methodCall> <?xml version="1.0"?>
Upcoming conferences in Atlanta
Event Venues Dates
Sixteenth ACM SIGSOFT International Symposium on Software Engineering:http://www.cc.gatech.edu/conferences/fse16/
Georgia Tech Nov 9-15
Sixth Annual IEEE Conference on Sensor Networks:http://www.ieee-sensors2007.org/
Hyatt Regency, Downtown
Oct 5
22nd IEEE/ACM Conference on Automated Software Engineering:http://www.cse.msu.edu/ase2007/
Crowne Plaza Hotel, Buckhead
Nov 5-9
Georgia Tech Information Security Center (GTISC) Security Summit:http://www.gtisc.gatech.edu/
Georgia Tech Oct 2
References1. http://en.wikipedia.org/wiki/Interprocess_communication2. Andrew D. Birrell, Bruce Nelson, “Implementing Remote Procedure Calls”, ACM
Transactions on Computer Systems, Volume 2, Issue 1, 19843. http://technet2.microsoft.com/windowsserver/en/library/e5677c57-3182-497a-
b53b-a536580b542b1033.mspx?mfr=true4. http://www.ibm.com/developerworks/webservices/library/ws-arc3/5. Nilimesh Halder, Tariqul Islam, Ju Bin Song, “Modeling and Formal Verification
of Communication Protocols for Remote Procedure Call”, IJCSNS - International Journal of Computer Science and Network Security, Vol. 7, July 2007
6. http://en.wikipedia.org/wiki/Remote_Procedure Call7. Heindel L E, Kasten V A, “Highly reliable synchronous and asynchronous remote
procedure calls”, Conference Proceedings of the 1996 IEEE Fifteenth annual International Phoenix Conference on Computers and Communication, 27-29 March 1996
8. Davis A, Du Zhang, “A Comparitive study of DCOM and SOAP”, Proceedings of the 2002 IEEE Fourth International Symposium on Multimedia and Software Engineering, 11-13 Dec 2002