DLL Programmer's Guide for TNS/R Systems

DLLs on a TNS/R System

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

1-2

Libraries and Symbols

exported by another loadfile. Thus, in Figure 1-1, Library K exports Joe and, after H is

loaded, H imports Joe.

In the rest of this document, the term library means a DLL, a TNS/R shared runtime

library (SRL), or a public hybrid SRL. The terms DLL, SRL, and hybrid SRL refer to

specific types of library, which are discussed later.

Figure 1-1. Symbol Resolution by Binding at Load Time

1300

Lib J

Lib K

Joe()

Call Joe()

Call 16300

Lib L

Lib K

Joe()

Lib J

10000

15000

18000

Four object files after they are loaded

Four object files before they are loaded

Lib L

4000

3000

5000

VST011.vsd