DLL Programmer's Guide for TNS/R Systems

DLL Programmer’s Guide for TNS/R Systems—522203-002

About This Manual

Purpose of This Manual

The DLL Programmer’s Guide For TNS/R Systems is intended as an introduction to

the process of creating and using Dynamic-Link Libraries (DLLs) on TNS/R S-series

systems.

Who Should Read This Manual

Applications and Systems Programmers who want to create or use DLLs.

How This Manual Is Organized

This manual consists of the following sections:

Section 1, DLLs on a TNS/R System. This section explains the TNS/R DLL facility –

what DLLs are, how they work, how they can be used, and the basic workings of the

tools that create them.

Section 2, Essential DLL Facility Controls. This section explains the linker’s most

commonly used controls.

Section 3, Dynamic Use of DLLs. This section discusses how to dynamically load and

unload a DLL from your running process and how to link your loadfile with a

dynamically loaded DLL.

Section 4, Finding Symbol Definitions. This section describes how the linker and

loader resolve symbol references, including cases when multiple definitions are

available for the same symbol name.

Section 5, Advanced DLL Facility Controls. This section tells how you can manually

override and extend previously described linker and loader defaults and options to

meet special needs.

Section 6, Sample Sessions and Usage Notes. This section contains simple examples

of creating DLLs and some usage notes - based on the experience of the first users,

we point out some of the issues that you may run into as you start out.