z/OS Communications Server: IP Sockets Application Programming Interface Guide and Reference
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Macro application programming interface

z/OS Communications Server: IP Sockets Application Programming Interface Guide and Reference
SC27-3660-00

This information describes the macro API for IPv4 or IPv6 socket application programs written in z/OS® assembler language. The macro interface can be used to produce reentrant modules and can be used in a multithread environment.

The following topics are included:
  • Environmental restrictions and programming requirements
  • Input register information
  • Output register information
  • Compatibility considerations
  • Defining storage for the API macro
  • Understanding common parameter descriptions
  • Error messages and return codes
  • Characteristics of sockets
  • Task management and asynchronous function processing
  • Using an unsolicited event exit routine
  • Diagnosing problems in applications using the macro API
  • Macros for assembler programs
  • Macro interface assembler language sample programs
Parent topic: Application program interfaces

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