Previous Page Contents Page Next Page

1.9 Syncpoint Support

The SNAP-IX APPC API provides support for sessions and conversations that use LU 6.2 Syncpoint protocols. This means that it can be used in conjunction with transaction monitors that require Syncpoint Level 2 support. It does not itself provide the components necessary for a full Syncpoint implementation, but provides the underlying support for a vendor-supplied implementation. The vendor must provide the following components:

This manual does not attempt to explain Syncpoint functions; it describes only the support that SNAP-IX provides to enable them to be implemented. If you are developing a Syncpoint Manager for use with SNAP-IX APPC, you should already be familiar with Syncpoint concepts; refer to the IBM LU 6.2 manuals listed in Related Publications for more information if necessary.

Some parameter and return code values in this manual are marked only used by TPs that support Syncpoint processing or only used if the conversation's sync_level is AP_SYNCPT. If you are writing APPC applications that do not use Syncpoint functions, do not attempt to use these parameters. In most cases, the Syncpoint Manager is responsible for converting between these values and the appropriate Syncpoint functions, as noted in the parameter descriptions.

If you are writing applications to work with a Syncpoint implementation provided by your SNAP-IX supplier or by another vendor, the vendor should provide you with the additional information necessary to use this implementation.

Previous Page Contents Page Top of Page Next page