DLL Programmer's Guide for TNS/E Systems

Example Code

DLL Programmer’s Guide for TNS/E Systems—527252-006

6-4

Example One

Here’s the creation of the object file called mystro.

run $data01.toolsy02.ccomp /in mystrngc /mystro;suppress

TNS/E C - T0549H01 - 30AUG2004 (Oct 25 2004 14:47:23)

0 remarks were issued during compilation.

0 warnings were issued during compilation.

0 errors were detected during compilation.

Object file: mystro

Compiler statistics

phase CPU seconds elapsed time file name

CCOMP \SPEEDY.$DATA01.TOOLSY02.CCOMP

CCOMBE 0.2 00:00:06 \SPEEDY.$DATA01.TOOLSY02.CCOMBE

total 0.2 00:00:06

All processes executed in CPU 04 (NSR-Y)

Swap volume: \SPEEDY.$DATA01

Build the DLL and the Program

First we build the DLL, then the main executable file called revstr. It has to be in that

order because the main executable could not refer to a DLL that did not yet exist. (If

the linker’s -allow_missing_libs option is specified, the main executable could be

linked befoe the DLL is linked.)

Note that the -lib option references the DLL called mystrdll. In Example Two we

show the main built without reference to a DLL. We will use rld to load the DLL

dynamically.

Note the -export_all option. We could also individually reference the items to be

exported, as follows:

-export StrRev

Note the -shared option sent to eld. This creates the DLL. The -dll option can be

used to do the same task, and is probably more descriptive of what we want to

achieve. Either option can be used.