Guardian Programmer's Guide

Glossary
Guardian Programmer’s Guide — 421922-014
Glossary - 13
import control
import control. The characteristic of a loadfile that determines from which other loadfiles it
can import symbol definitions. The programmer sets a loadfile’s import control at link
time. That import control can be localized, globalized, or semiglobalized. A loadfile’s
import control governs the way the linker and loader construct that loadfile’s searchList
and affects the search only for symbols required by that loadfile.
import library. A file that represents a dynamic-link library (DLL) and can substitute for it as
input to the linker. Import libraries facilitate linking on auxiliary platforms (that is, PCs)
where it is inconvenient to store the actual DLLs.
inactive process. A process that is not currently using the instruction processing unit of the
CPU. Contrast with active process.
input/output process (IOP). A system process that drives one or more input/output units
attached to the CPU through input/output channels and controllers.
interprocess communication (IPC). The exchange of messages between processes in a
system or network.
Inspect region. The region of a TNS object file that contains symbol tables for all blocks
compiled with the SYMBOLS directive. The Inspect region is sometimes called the
SYSnn subvolume.
INSPSNAP. The program that provides a process snapshot file for the Inspect subsystem.
installation subvolume (ISV). A subvolume containing files that perform a specific function
during the installation process, such as organizing documentation in a specific location,
providing the components of the HP NonStop™ operating system image (OSIMAGE),
and containing files that are used after the installation process.
instance. A particular case of a class of items or objects. For example, a process is defined
as one instance of the execution of a program. Multiple processes might be executing
the same program simultaneously. Also, instance data refers to global data of a
program or library. Each process has its own instance of the data.
instance data. For each process using a dynamic-link library, a data segment area
containing the global variables used by the library.
Intel® Itanium® instructions. Register-oriented Itanium instructions that are native to and
directly executed by a TNS/E system. Itanium instructions do not execute on TNS and
TNS/R systems. Contrast with TNS instructions and RISC instructions.
TNS Object Code Accelerator (OCA) produces Itanium instructions to accelerate TNS
object code. A TNS/E native compiler produces native-compiled Itanium instructions
when it compiles source code.
Intel® Itanium® instruction region. The region of a TNS object file that contains Itanium
instructions and the tables necessary to execute the instructions in accelerated mode
on a TNS/E system. The Object Code Accelerator (OCA) creates this region and writes