Object Code Accelerator Manual

Glossary
Object Code Accelerator Manual—528144-003
Glossary-7
executable object file
executable object file. See program file.
explicit DLL. See explicit dynamic-link library (explicit DLL).
explicit dynamic-link library (explicit DLL). A dynamic-link library (DLL) that is named in
the libList of a client or is a native-compiled loadfile associated with a client.
export. To offer a symbol definition for use by other loadfiles. A loadfile exports a symbol
definition for use by other loadfiles that need a data item or function having that
symbolic name.
EXTDECS file. See external declarations file.
extended data segment. See selectable segment.
external entry-point (XEP) table. A table located in the last page of each TNS code
segment that contains links for calls (unresolved external references) out of that
segment.
extensible data segment. An extended data segment for which swap file extents are not
allocated until needed.
extent. A contiguous area of a disk allocated to a file.
external declarations file. A file containing external declarations for Guardian procedure
calls. There are several such files relating to the high-level programming language you
are using and the version of the operating system.
file. An object to which data can be written or from which data can be read. A file has
attributes such as access permissions and a file type. In the Open System Services
(OSS) environment, file types include regular file, character special file, block special
file, FIFO, and directory. In the Guardian environment, file types include disk files,
processes, and subdevices.
file code. An integer value assigned to a file for application-dependent purposes, typically
identifying the kind of information the file contains.
file description. See open system.
file identifier. In the Guardian environment, the portion of a filename following the
subvolume name. In the Open System Services (OSS) environment, a file identifier is a
portion of the internal information used to identify a file in the OSS file system (an
inode number). The two identifiers are not comparable.
filename. In the Open System Services (OSS) environment, a component of a pathname
containing any valid characters other than slash (/) or null. See also file name.
file name. A string of characters that uniquely identifies a file.