summaryrefslogtreecommitdiff
path: root/PACE/docs/www/PACE-overview.html
diff options
context:
space:
mode:
Diffstat (limited to 'PACE/docs/www/PACE-overview.html')
-rw-r--r--PACE/docs/www/PACE-overview.html229
1 files changed, 0 insertions, 229 deletions
diff --git a/PACE/docs/www/PACE-overview.html b/PACE/docs/www/PACE-overview.html
deleted file mode 100644
index 33c8398400b..00000000000
--- a/PACE/docs/www/PACE-overview.html
+++ /dev/null
@@ -1,229 +0,0 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
-<!-- $Id$ -->
-<html>
- <head>
- <title>PACE Overview</title>
- </head>
-
- <body text=#000000 vlink=#cc000000 link=#0000ff bgColor=#ffffff>
-
- <table align=center width=640 border=0 cellpadding=6 cellspacing=0>
- <tr>
- <td><hr></td>
- </tr>
- <tr>
- <td>
- <table border=0 cellspacing=20>
- <tr>
- <td>
- <p align=right>
- <a href=PACE.html>
- <img alt=Click-Me-To-Go-Home
- border=0
- src=Pix/PACE-mini-logo.gif>
- </a>
- </p>
- </td>
- <td>
- <table cellspacing=10>
- <tr>
- <td align=center><a href=PACE-overview.html>PACE Overview</a></td>
- <td align=center><a href=PACE-obtain.html>PACE Obtain</a></td>
- <td align=center><a href=PACE-docs.html>PACE Documentation</a></td>
- </tr>
- </table>
- </td>
- <td>
- <p align=right>
- <a href=PACE.html>
- <img alt=Click-Me-To-Go-Home
- border=0
- src=Pix/PACE-mini-logo.gif>
- </a>
- </p>
- </td>
- </tr>
- </table>
- </td>
- </tr>
- <tr>
- <td>
- <hr>
- <h2>PACE Overview</h2>
- <p>PACE is an OS abstraction layer designed for lightweight
- and/or verified systems.</p>
-
- <p>It offers these benefits:</p>
- <ul>
- <li>
- <p>A strict POSIX.1-like, low-level interface. Its
- interface is "POSIX compatible"; by that we mean as
- close to POSIX.1 as it can be, given that PACE is not
- an operating system. And, to avoid name conflicts with
- OS APIs, all low-level PACE function names have
- the <i><b>pace_</b></i> prefix.
- </p>
- <li>
- <p>The low-level interface is a C file, so that it can be
- used in both C and C++ programs.
- </p>
- <li>
- <p>The low-level interface is partitioned into multiple
- files, one per POSIX.1 section.
- </p>
- </li>
- </ul>
-
- <hr>
-
- <h2>ACE uses PACE</h2>
- <p>The ADAPTIVE Communication Environment
- <a href="http://www.cs.wustl.edu/~schmidt/ACE.html">(ACE)</a>
- is a freely available, open-source, object-oriented
- <a href="http://www.cs.wustl.edu/~schmidt/courses.html">(OO)</a>
- framework that implements many core design patterns for
- concurrent communication software.
- </p>
-
- <p>ACE is currently built on an
- <a href="http://www.cs.wustl.edu/~schmidt/ACE-overview.html">
- OS Adaptation Layer</a> that abstracts away specific
- computer architecture / platform dependencies therfore
- allowing ACE to be portable across any platform that the
- adaptation layer supports.
- </p>
-
- <p>ACE also forms the foundation upon which
- <a href="http://www.cs.wustl.edu/~schmidt/TAO.html">TAO</a>
- is built. The combination of implementing TAO (adding
- specific functionality to ACE) and the ever shifting sands
- of vendor-specific operating systems has grown the ACE
- adapatation layer from a small core of critial functions to
- over 30,000 lines of interdependent code. The development of
- TAO tied in with requests from our sponsors as well as
- suggestions from the development community at large
- contributed to our decision to re-engineer ACE' adaptation
- layer. PACE is one part of this effort.
- </p>
-
- <hr>
-
- <h2>PACE Objectives</h2>
- <p>Some objectives of this phase of ACE' development (PACE)
- include:
- </p>
- <ul>
- <li>
- <p><b>ACE Developers:</b> Make the low level abstraction
- layer code more maintainable.<br>
- <i>(reduce file size and file interdependence - improve
- code modularity)</i>
- </p>
- </li>
- <li>
- <p><b>ACE Users:</b> Reduce ACE' footprint.<br>
- <i>(this is not a one-step task by any stretch of the
- imagination, but we will begin breaking out the code
- into separate files - allowing developers the
- opportunity option to compile and link specific
- object files to their executables instead of the
- entire ACE adaptation layer library)</i>
- </p>
- </li>
- <li>
- <p><b>ACE Users:</b> Update the adaptation layer to be
- POSIX compliant.<br>
- <i>(see next)</i>
- </p>
- </li>
- <li>
- <p><b>ACE Users:</b> Split the adaptation layer to support
- both a <b>C</b> API (PACE) as well as a set of
- <b>C++</b> wrapper classes (ACE_OS) allowing
- <i><b>both C &amp; C++</b></i> developers to call
- directly into the low level API.<br>
- <i>(encapslate POSIX and system calls in <b>C</b>
- wrappers and re-write the (ACE_OS) adaptation layer to
- transparently call into the POSIX emulation API
- (PACE))</i>
- </p>
- </li>
- <li>
- <p><b>ACE Users:</b> ACE will not change its public
- interface, it will only add low level <b>C</b>
- operations to its repertoire. As is obvious, software
- built on this adaptation layer is portable across the
- various platforms that ACE supports. This provides
- backward compatilibity for people already using the
- current <b>C++</b> (ACE_OS) adaptation layer of
- ACE.</p>
- </li>
- </ul>
-
- <p>This is an open-source project maintained by:
- <ul>
- <li><a href="http://www.cs.wustl.edu/~schmidt">
- Dr. Douglas Schmidt</a> of the
- <a href="http://www.cs.uci.edu/">
- University of California - Irvine</a>
- </li>
- <li><A href="http://www.cs.wustl.edu/~cyron">
- Dr. Ron Cytron</a> of
- <a href="http://www.cs.wustl.edu/">
- Washington University - St. Louis</a>
- </li>
- <li>their respective sister
- <a href="http://www.cs.wustl.edu/~doc">
- <b><font color=red>D</font></b>istributed
- <b><font color=red>O</font></b>bject
- <b><font color=red>C</font></b>omputing</a>
- research groups.
- </li>
- </ul>
- </td>
- </tr>
- <tr>
- <td>
- <hr>
- <p>Additional information regarding
- <a href="http://www.cs.wustl.edu/~schmidt/ACE.html">ACE</a>
- and
- <a href="http://www.cs.wustl.edu/~luther/PACE">PACE</a>
- and
- <a href="http://www.cs.wustl.edu/~schmidt/TAO.html">TAO</A>
- is available as well as a
- <a href="http://www.cs.wustl.edu/~schmidt/TAO-obtain.html">
- full source distribution</a> of TAO + ACE + PACE.
- </p>
-
- <p>If you have any questions, suggestions or contributions
- regarding PACE, please
- <a href="mailto:pace-users@cs.wustl.edu">write</a>
- to us or subscribe to the pace-users mailing list
- (send email to
- <a href="mailto:majordomo@cs.wustl.edu">
- majordomo@cs.wustl.edu</a>
- with <b>"subscribe pace-users"</b> in the <i>body</i>,
- not the subject line ;-)
- </p>
-
- <hr>
-
- <!-- email -->
- <font face=Verdana,Arial,Helvetica size=2>
- <p align=center><a href="mailto:doc_group@cs.wustl.edu">
- Doc Group</a></p>
-
- <!-- last modified tag -->
- <p align=center>
- <!-- Created: Fri May 4 20:13:27 CDT 2001 -->
- <!-- hhmts start -->
-Last modified: Sun May 13 14:45:55 CDT 2001
-<!-- hhmts end -->
- </p></font>
- </td>
- </tr>
- </table>
-
- </body>
-</html>