Introduction to the Application Programing Interface

The core interfaces for Tuxedo are defined in C and COBOL, but there are also some third-party languages available for developing a Tuxedo application. As a developer, you will be able to choose the platform for a Tuxedo client/server based on the ease of development, debugging tools, performance/overhead, and expertise.

Here I have listed most of the Tuxedo ATMI interfaces for C and COBOL for quick reference. We will discuss them in more detail in the following sections of this chapter.

ATMI type	C API	COBOL API	Comments
Client	tpinit()	TPINITIALIZE	Allows a client program to join an application
	tpterm()	TPTERM	Allows a client to leave the application
	tpchkauth()	TPCHKAUTH	Checks if authentication is needed
Communication (request/response)	tpcall()	TPCALL	Synchronous call to a service
	tpacall()	TPACALL	Asynchronous call to a service
	tpgetreply()	TPGETREPLY	Gets a reply back for an asynchronous call
	tpcancel...