TNSVU User's Guide

Glossary
TNSVU User’s Guide—528143-003
Glossary-20
reconfiguration
reconfiguration. The act of changing the hardware or software configuration of a running
system. Examples include installing a new software release version update (RVU),
adding hardware peripherals, and restructuring a database. Reconfiguring a system
might or might not require a planned outage.
reduced instruction-set computing (RISC). A processor architecture based on a relatively
small and simple instruction set, a large number of general-purpose registers, and an
optimized instruction pipeline that supports high-performance instruction execution.
Contrast with complex instruction-set computing (CISC) and export.
reexported library. A library whose symbols are made available by another dynamic-link
library (DLL) to any localized client of that DLL. Reexport is an attribute of the DLL’s
libList entry for that library. This attribute is specified by the DLL’s programmer and
recorded by the linker as a DLL is built. It affects only localized clients of the DLL. This
feature allows a symbol to be moved from one DLL to another without relinking clients
of the original DLL.
Reexporting is transitive; that is, if A reexports B and B reexports C, then A reexports
C. Reexported libraries can reexport other libraries to form a succession of reexported
libraries of arbitrary length.
register-exact point. A synchronization location within an accelerated object file at which
both of these statements are true:
•
All live TNS registers plus all values in memory are the same as they would be if
the object file were running in TNS mode or TNS interpreted mode or on a TNS
system.
•
All accelerator code optimizations are ended.
Register-exact points are a small subset of all memory-exact points. Procedure entry
and exit locations and call-return sites are usually register-exact points. All places
where the program might switch into or from TNS mode or TNS interpreted mode are
register-exact points. Contrast with memory-exact point and nonexact point.
relative pathname. In the Open System Services (OSS) file system and Network File
System (NFS), a pathname that does not begin with a slash (/) character. A relative
pathname is resolved beginning with the current working directory. Contrast with
absolute pathname.
release version update (RVU). A collection of compatible revisions of HP NonStop
operating system software products, identified by an RVU ID, and shipped and
supported as a unit. An RVU consists of the object modules, supporting files, and
documentation for the product revisions. An RVU also includes a set of documentation
for the overall RVU.
rendezvous. A distributed operation that exchanges data to achieve synchronization among
the processor elements of a logical processor.
RISC. See reduced instruction-set computing (RISC).