<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <!--Converted with LaTeX2HTML 96.1-c (Feb 29, 1996) by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds --> <HTML> <HEAD> <TITLE>6.1 Introduction</TITLE> <META NAME="description" CONTENT="6.1 Introduction"> <META NAME="keywords" CONTENT="lpg"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <LINK REL=STYLESHEET HREF="lpg.css"> </HEAD> <BODY LANG="EN"> <A NAME="tex2html430" HREF="node9.html"><IMG WIDTH=37 HEIGHT=24 ALIGN=BOTTOM ALT="next" SRC="/icons//next_motif.gif"></A> <A NAME="tex2html428" HREF="node7.html"><IMG WIDTH=26 HEIGHT=24 ALIGN=BOTTOM ALT="up" SRC="/icons//up_motif.gif"></A> <A NAME="tex2html422" HREF="node7.html"><IMG WIDTH=63 HEIGHT=24 ALIGN=BOTTOM ALT="previous" SRC="/icons//previous_motif.gif"></A> <A NAME="tex2html432" HREF="node1.html"><IMG WIDTH=65 HEIGHT=24 ALIGN=BOTTOM ALT="contents" SRC="/icons//contents_motif.gif"></A> <BR> <B> Next:</B> <A NAME="tex2html431" HREF="node9.html">6.2 Half-duplex UNIX Pipes</A> <B>Up:</B> <A NAME="tex2html429" HREF="node7.html">6 Linux Interprocess Communications</A> <B> Previous:</B> <A NAME="tex2html423" HREF="node7.html">6 Linux Interprocess Communications</A> <BR> <P> <H1><A NAME="SECTION00710000000000000000">6.1 Introduction</A></H1> <P> The Linux IPC (Inter-process communication) facilities provide a method for multiple processes to communicate with one another. There are several methods of IPC available to Linux C programmers: <UL><LI> Half-duplex UNIX pipes<LI> FIFOs (named pipes)<LI> SYSV style message queues<LI> SYSV style semaphore sets<LI> SYSV style shared memory segments<LI> Networking sockets (Berkeley style) (not covered in this paper)<LI> Full-duplex pipes (STREAMS pipes) (not covered in this paper) </UL> <P> These facilities, when used effectively, provide a solid framework for client/server development on any UNIX system (including Linux). <P> <BR> <HR> <P><ADDRESS> <I>Converted on: <BR> Fri Mar 29 14:43:04 EST 1996</I> </ADDRESS> </BODY> </HTML>