This lets you restrict tracing of a function to a particular process. If
, then the function is traced from within all processes (this is the default). Otherwise, the function is only traced from within the process that
This lets you invoke the tracing facilities on a traced function selectively. Before each call to the function,
is evaluated. If
, no tracing is done. The contents of hcl:*traced-arglist* can be examined by
to find the arguments given to trace.
LispWorks User Guide and Reference Manual - 21 Dec 2011