HP-UX C SIP Stack Programmer's Guide (Novembery 2007)

Creating an Application 33

CREATING AN APPLICATION

INTRODUCTION This chapter describes the basic code necessary to write an application using the

SIP Stack, including:

 Initialization

 Event Processing

 Destruction

 Configuration

 Getting Module Handles

INITIALIZATION Before performing any SIP-related activity, you must initialize the SIP Stack.

The SIP Stack Manager API function, RvSipStackConstruct(), performs

SIP Stack initialization. RvSipStackConstruct() receives the following

parameters:

 cfgStructSize—input parameter. The size of the configuration

structure.

 RvSipStackCfg—input/output parameter. Set the parameters in

the RvSipStackCfg structure with your configuration values.

You can use RvSipStackInitCfg() to initialize the configuration

structure with the SIP Stack default values.

 RvSipStackHandle—output parameter. You should supply this

parameter when working with the Stack Manager API

functions.

RvSipStackConstruct() performs the following:

 Constructs the layers of the SIP Stack.