HP 3000 Manuals

COMMUNICATOR 3000 MPE/iX Release 5.0 (Core Software Release X.50.20)

System V Interprocess Communication 

by Peggy Bertsch 
Commercial Systems Division 

This release of MPE/iX provides interprocess communication facilities as
defined by the AT&T System V Interface Definition, in the form of message
queues, semaphores, and shared memory.

The system calls provided as part of System V IPC on MPE/iX include:

   ftok()

   msgctl() 
   msgget() 
   msgsnd() 
   msgrcv()

   semctl() 
   semget() 
   semop()

   shmat() 
   shmctl() 
   shmdt()

   shmget()
 
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NOTE  Application Developers such as Value Added Businesses (VABs) and
      Value Added Resalers (VARs) need the MPE/iX Developer's Kit
      (p/n 36430A), which includes a relocatable library (RL)
      (/lib/libsvipc.a) and header files (in /usr/include/sys) that
      provide the necessary C language interface.  The Fundamental
      Operating System (FOS) contains the core of System V IPC, so that
      once the object files have been linked with the System V IPC RL,
      end-users can run the resulting application on an HP3000 Series 900
      system running MPE/iX Release 4.5 or later.  End-users do not need
      the Developer's Kit.


It is expected that application developers will use the MPE/iX Shell and
Utilities product (part of FOS) to compile and link their applications.
Please refer to the articles "Introducing the MPE/iX Shell and Utilities"
and "Introducing the MPE/iX Developer's Kit" in this Communicator for
more information.

MPE/iX Communicators