HP 3000 Manuals

COMMUNICATOR 3000 MPE MPE/iX RELEASE 4.5

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() 


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 HP`3000 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 on "Introducing the MPE/iX Shell and
Utilities" and "Introducing the MPE/iX Developer's Kit" in this
Communicator for more information.

MPE/iX Communicators