IBM Mainframe Forum

1. Does anybody know what exactly that means?
2. What does "System Programming C Facilities" exactly refer to?
3. Does that mean that opening and using Internal Reader from the FTP exit won't be possible?

FRONT_3.11 The System Programming C facility The System Programming C (SPC) facility allows you to build applications that do not require dynamic loading of z/OS Language Environment libraries. It also allows you to tailor your application for better utilization of the low-level services available on your operating system. SPC offers a number of advantages:
You can develop applications that can be executed in a customized environment rather than with z/OS Language Environment services. Note that if you do not use z/OS Language Environment services, only some built-in functions and a limited set of z/OS XL C/C++ run-time library functions are available to you.
You can substitute the z/OS XL C language in place of assembler language when writing system exit routines by using the interfaces that are provided by SPC.
SPC lets you develop applications featuring a user-controlled environment in which a z/OS XL C environment is created once and used repeatedly for C function execution from other languages.
You can utilize co-routines by using a two-stack model to write application service routines. In this model, the application calls on the service routine to perform services independent of the user. The application is then suspended when control is returned to the user application.

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zost (Sat May 11, 2013 7:00 pm)