next up previous contents
Next: The application programmers Up: The Device Server Previous: Executing commands locally

Executing commands over the network

Network access is implemented in the DSM in the root class. This is achieved with a remote procedure call (rpc). The DSM is presently use the rpc from SUN -- the Network File System rpc or NFS/RPC. Data is transported in network format using the eXternal Data Representation ( XDR format). The XDR routines are part of the NFS/RPC software. A library of routines is maintained for all basic C data types supported. This way not all device server programmers have to learn how to use the XDR routines. It is possible for the device server programmer to add new (exotic) types to this list.



Andy Goetz
Tue Jan 28 13:58:13 MET 1997