Next: Out-Of-Band Data, Previous: The REMOTE Package, Up: Interprocess Communication under LISP [Contents][Index]
The wire package provides for sending data along wires. The
remote package sits on top of this package. All data sent
with a given output routine must be read in the remote process with
the complementary fetching routine. For example, if you send so a
string with wire-output-string, the remote process must know
to use wire-get-string. To avoid rigid data transfers and
complicated code, the interface supports sending
tagged data. With tagged data, the system sends a tag
announcing the type of the next data, and the remote system takes
care of fetching the appropriate type.
When using interfaces at the wire level instead of the RPC level, the remote process must read everything sent by these routines. If the remote process leaves any input on the wire, it will later mistake the data for an RPC request causing unknown lossage.
Next: Out-Of-Band Data, Previous: The REMOTE Package, Up: Interprocess Communication under LISP [Contents][Index]