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APPC/VM Functions

Introduction

This chapter covers the SAS/C Advanced Program-to-Program Communications/Virtutal Machine (APPC/VM) functions. These are a set of SAS/C Library functions that invoke the VM/SP APPC/VM Assembler programming interface. These functions are defined according to Release 5 of VM/SP. These functions also work with Release 6 of VM/SP and Release 1 of VM/ESA. For background information on the VM/SP APPC/VM Assembler programming interface, refer to the appropriate IBM documentation for your VM system. For a complete description of how the SAS/C Library supports asynchronous signals and the use of signal-related SAS/C functions, refer to Chapter 5, "Signal-Handling Functions," in SAS/C Library Reference, Volume 1.

Note: SAS/C does not provide its own interface to OS/390 APPC because the standard APPC interface on OS/390 can be called directly from SAS/C programs. See Application Development: Writing Transaction Programs for APPC/MVS (GC28-1121) for details. [cautionend]

The following table shows the APPC/VM functions as implemented by the library.

APPC/VM Functions
SAS/C Functions Purpose APPC/VM Function

appcconn Request that a path be established Invoke APPC/VM CONNECT function

appcrecv Accept a message Invoke APPC/VM RECEIVE function

appcscnf Send a confirmation request Invoke APPC/VM SENDCNF function

appcscfd Send a confirmation response Invoke APPC/VM SENDCNFD function

appcsdta Send data Invoke APPC/VM SENDDATA function

appcserr Send an error message Invoke APPC/VM SENDERR function

appcsreq Send a request Invoke APPC/VM SENDREQ Function

appcsevr Break a path Invoke APPC/VM SEVER function

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