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IPC_Lib_Sources
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READ_ME
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1989-04-19
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IPC System Sources
==================
This directory contains the source files for creating the IPC Shared
Library.
Include header files:
IPCStruct.h -- Header defining only the IPC structures (extracted
from IPC.h and IPCPorts.h); avoids function prototype
conflicts within the library sources.
IPCAsmCalls.h -- prototypes for direct calling of library routines
by other routines within the library.
+ + +
Source Files for the Shared Library:
IPClib.c -- Contains all the IPC library procedures that a user
program will call for managing IPCPorts and
IPCMessages. Calls to the library invoke these
routines directly (no assembly level interface
required -- they use the "__asm" feature of
Lattice 5.0).
LoadIPCPort.c -- An alternative to GetIPCPort (which it uses
internally) that sends a message to a "Port Broker"
if the requested port does not currently have a server;
if the broker cannot find a server to satisfy the
request (or the broker itself isn't loaded!), this call
will return NULL. This module is now a standard part
of the library.
UtilIPC.c -- Contains two (new) utility functions that have been
added to the IPC Library (MakeIPCId and FindIPCItem).
LibFuncs.c -- Standard library functions (Init, Open, Close, Expunge)
with minor additions to handle particular IPC needs.
LibTables.c -- Tables for library initialization. (The library node
structure initialization is not easy to specify in C;
the table for that is in LibTag.a.)
LibTag.a -- The library RomTag structure needed for autoloading
by OpenLibrary(). Also contains basic initialization
data for the library node.
+ + +
Make File:
lmkfile -- Lattice 5.0 Makefile for the library. It assumes that
all assignments and paths have been set up before it
is invoked.
Link File:
IPCLibrary.lnk -- BLINK "WITH" file to create "ppipc.library" from
the component object files (also used by lmkfile).
+++++++++++++++++
Compiling under Lattice:
The library modules MUST all be compiled with -b0 and -v options.
(It probably would be fairly easy to make it compatible with the -y
option instead of -b0, by saving a suitable base pointer on
initialization, but I haven't experimented with that yet.)
Application programs may of course be compiled in any mode you like.
If you are using Lattice 4.0 or later, it will be more convenient to
include IPC_proto.h (as well as IPC.h) so you can avoid any need to
link with IPC.lib (itself available in Libraries directory).
+++++++++++++++++
-----------------
1989 April 18