AddExtension(D3nfb)

AddExtension -- adds extensions to the X server

Synopsis

#include "extensions.h"

Description

AddExtension initializes an extension to the X Server when the server is initialized.

The extension must meet the following criteria:

adhere to the standards set forth by the X Consortium
does not require changes to the X server core
must be initialized at InitExtensions time. This is after screen initialization but before input initialization. See the dix/main.c and ddx/mi/miinitext.c files.
initialize with a single function call

To create the extension object, use a command sequence such as the following:

   cd extensions/server/xtrap
   make
   ld -r -e DEC_XTRAPInit -o xtrap.o xtrapdi.o libxtrapext.a

The xtrapdi.o module must be specified on the command line because it is the file that contains the DEC_XTRAPInit symbol.

When the server starts up it first initializes all its static extensions, and then initializes the dynamic extensions in the order they appear in the extension.cf(D4nfb) file. No parameters are passed to the extensions Init routine.

NOTE: Only the dynamic X Server can link dynamic extensions. To debug your extension, you must modify the config and Imakefiles appropriately to statically link the extension into the X server.

Exit codes

None

Porting notes

Extending the X Server is a new feature in the Release 5.1 X Link Kit provided for the SCO OpenServer 5 (TM)

Release 5 system.

Version applicability

This function is supported for NFB drivers on all releases of SCO OpenServer 5 and SVR5. It is not supported on AIX 5L.

References

extension.cf(D4nfb)