Developing Data Services

Sample DSDL Resource Type Implementation

This chapter describes a sample resource type, ORCL.xfnts, which is implemented with the Data Service Development Library (DSDL). This data service is written in C. The underlying application is the X Font Server, a TCP/IP-based service. DSDL Sample Resource Type Code Listings contains the complete code for each method in the ORCL.xfnts resource type.

This chapter covers the following topics:

• X Font Server

• ORCL.xfnts RTR File

• Naming Conventions for Functions and Callback Methods

• scds_initialize Function

• xfnts_start Method

• xfnts_stop Method

• xfnts_monitor_start Method

• xfnts_monitor_stop Method

• xfnts_monitor_check Method

• ORCL.xfnts Fault Monitor

• xfnts_validate Method

• xfnts_update Method