Component-Based Operating System Apis: a Versioning and Distributed Resource Solution
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A Microkernel API for Fine-Grained Decomposition
A Microkernel API for Fine-Grained Decomposition Sebastian Reichelt Jan Stoess Frank Bellosa System Architecture Group, University of Karlsruhe, Germany freichelt,stoess,[email protected] ABSTRACT from the microkernel APIs in existence. The need, for in- Microkernel-based operating systems typically require spe- stance, to explicitly pass messages between servers, or the cial attention to issues that otherwise arise only in dis- need to set up threads and address spaces in every server for tributed systems. The resulting extra code degrades per- parallelism or protection require OS developers to adopt the formance and increases development effort, severely limiting mindset of a distributed-system programmer rather than to decomposition granularity. take advantage of their knowledge on traditional OS design. We present a new microkernel design that enables OS devel- Distributed-system paradigms, though well-understood and opers to decompose systems into very fine-grained servers. suited for physically (and, thus, coarsely) partitioned sys- We avoid the typical obstacles by defining servers as light- tems, present obstacles to the fine-grained decomposition weight, passive objects. We replace complex IPC mecha- required to exploit the benefits of microkernels: First, a nisms by a simple function-call approach, and our passive, lot of development effort must be spent into matching the module-like server model obviates the need to create threads OS structure to the architecture of the selected microkernel, in every server. Server code is compiled into small self- which also hinders porting existing code from monolithic sys- contained files, which can be loaded into the same address tems. Second, the more servers exist | a desired property space (for speed) or different address spaces (for safety). -
Interaction Between Web Browsers and Script Engines
IT 12 058 Examensarbete 45 hp November 2012 Interaction between web browsers and script engines Xiaoyu Zhuang Institutionen för informationsteknologi Department of Information Technology Abstract Interaction between web browser and the script engine Xiaoyu Zhuang Teknisk- naturvetenskaplig fakultet UTH-enheten Web browser plays an important part of internet experience and JavaScript is the most popular programming language as a client side script to build an active and Besöksadress: advance end user experience. The script engine which executes JavaScript needs to Ångströmlaboratoriet Lägerhyddsvägen 1 interact with web browser to get access to its DOM elements and other host objects. Hus 4, Plan 0 Browser from host side needs to initialize the script engine and dispatch script source code to the engine side. Postadress: This thesis studies the interaction between the script engine and its host browser. Box 536 751 21 Uppsala The shell where the engine address to make calls towards outside is called hosting layer. This report mainly discussed what operations could appear in this layer and Telefon: designed testing cases to validate if the browser is robust and reliable regarding 018 – 471 30 03 hosting operations. Telefax: 018 – 471 30 00 Hemsida: http://www.teknat.uu.se/student Handledare: Elena Boris Ämnesgranskare: Justin Pearson Examinator: Lisa Kaati IT 12 058 Tryckt av: Reprocentralen ITC Contents 1. Introduction................................................................................................................................ -
Openvms Record Management Services Reference Manual
OpenVMS Record Management Services Reference Manual Order Number: AA-PV6RD-TK April 2001 This reference manual contains general information intended for use in any OpenVMS programming language, as well as specific information on writing programs that use OpenVMS Record Management Services (OpenVMS RMS). Revision/Update Information: This manual supersedes the OpenVMS Record Management Services Reference Manual, OpenVMS Alpha Version 7.2 and OpenVMS VAX Version 7.2 Software Version: OpenVMS Alpha Version 7.3 OpenVMS VAX Version 7.3 Compaq Computer Corporation Houston, Texas © 2001 Compaq Computer Corporation Compaq, AlphaServer, VAX, VMS, the Compaq logo Registered in U.S. Patent and Trademark Office. Alpha, PATHWORKS, DECnet, DEC, and OpenVMS are trademarks of Compaq Information Technologies Group, L.P. in the United States and other countries. UNIX and X/Open are trademarks of The Open Group in the United States and other countries. All other product names mentioned herein may be the trademarks of their respective companies. Confidential computer software. Valid license from Compaq required for possession, use, or copying. Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under vendor’s standard commercial license. Compaq shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is provided "as is" without warranty of any kind and is subject to change without notice. The warranties for Compaq products are set forth in the express limited warranty statements accompanying such products. Nothing herein should be construed as constituting an additional warranty. -
Introduction to Unix
Introduction to Unix Rob Funk <[email protected]> University Technology Services Workstation Support http://wks.uts.ohio-state.edu/ University Technology Services Course Objectives • basic background in Unix structure • knowledge of getting started • directory navigation and control • file maintenance and display commands • shells • Unix features • text processing University Technology Services Course Objectives Useful commands • working with files • system resources • printing • vi editor University Technology Services In the Introduction to UNIX document 3 • shell programming • Unix command summary tables • short Unix bibliography (also see web site) We will not, however, be covering these topics in the lecture. Numbers on slides indicate page number in book. University Technology Services History of Unix 7–8 1960s multics project (MIT, GE, AT&T) 1970s AT&T Bell Labs 1970s/80s UC Berkeley 1980s DOS imitated many Unix ideas Commercial Unix fragmentation GNU Project 1990s Linux now Unix is widespread and available from many sources, both free and commercial University Technology Services Unix Systems 7–8 SunOS/Solaris Sun Microsystems Digital Unix (Tru64) Digital/Compaq HP-UX Hewlett Packard Irix SGI UNICOS Cray NetBSD, FreeBSD UC Berkeley / the Net Linux Linus Torvalds / the Net University Technology Services Unix Philosophy • Multiuser / Multitasking • Toolbox approach • Flexibility / Freedom • Conciseness • Everything is a file • File system has places, processes have life • Designed by programmers for programmers University Technology Services -
Using the Component Object Model Interface
MQSeries for Windows NT V5R1 IBM Using the Component Object Model Interface SC34-5387-01 MQSeries for Windows NT V5R1 IBM Using the Component Object Model Interface SC34-5387-01 Note! Before using this information and the product it supports, be sure to read the general information under Appendix B, “Notices” on page 151. Second edition (April 1999) This edition applies to MQSeries for Windows NT V5.1 and to any subsequent releases and modifications until otherwise indicated in new editions. Copyright International Business Machines Corporation 1997,1999. All rights reserved. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents Contents About this book ..................................... v Who this book is for ................................... v MQSeries publications . vi MQSeries cross-platform publications ....................... vi MQSeries platform-specific publications ...................... ix MQSeries Level 1 product publications ....................... x Softcopy books . x MQSeries information available on the Internet .................. xii Where to find more information about ActiveX ................... xii Summary of changes ................................. xiii Changes for this edition ................................ xiii Chapter 1. Introduction . 1 MQSeries Automation Classes for ActiveX overview ................ 1 Chapter 2. Designing and programming using MQSeries Automation Classes for ActiveX .................................. 3 Designing -
Distributed Objects in C
Rochester Institute of Technology RIT Scholar Works Theses 2006 Distributed Objects in C# Xiaoyun Xie Follow this and additional works at: https://scholarworks.rit.edu/theses Recommended Citation Xie, Xiaoyun, "Distributed Objects in C#" (2006). Thesis. Rochester Institute of Technology. Accessed from This Master's Project is brought to you for free and open access by RIT Scholar Works. It has been accepted for inclusion in Theses by an authorized administrator of RIT Scholar Works. For more information, please contact [email protected]. Rochester Institute of Technology Department of Computer Science Master of Science Project Distributed Objects System in C# Submitted By: Xie, Xiaoyun (Sherry) Date: February 2004 Chairman: Dr. Axel T. Schreiner Reader: Dr. Hans-Peter Bischof Observer: Dr. James Heliotis 2 ABSTRACT Today more and more programs run over a collection of autonomous computers linked by a network and are designed to produce an integrated computing facility. Java Distributed Objects (JDO) proposed by Dr. Axel T. Schreiner [1] builds an infrastructure which allows distributed program components to communicate over a network in a transparent, reliable, efficient, and generic way. JDO was originally intended as a teaching device to assess design parameters for distributed objects. This project focuses on porting JDO, which is implemented in Java on Sun’s JDK, to C# on Microsoft’s .NET. On one hand, it builds an infrastructure in C# that simplifies the construction of distributed programs by hiding the distributed nature of remote objects. On the other hand, it generates insights into the differences between two platforms, namely, Java on Sun and C# on .NET, in the distributed objects area. -
Security Policy Page 1 of 20
Security Policy Page 1 of 20 Security Policy This security policy contains data to configure services and network security based on the server’s role, as well as data to configure registry and auditing settings. Server: VENGWIN207 Services Service Name Startup Mode Description Issues, manages, and removes X.509 certificates for such applications such as Active Directory Certificate S/MIME and SSL. If the service is stopped, Disabled Services certificates will not be issued. If this service is disabled, any services that explicitly depend on it will fail to start. AD DS Domain Controller service. If this service is stopped, users will be unable to log Active Directory Domain Services Disabled on to the network. If this service is disabled, any services that explicitly depend on it will fail to start. AD FS Web Agent Authentication The AD FS Web Agent Authentication Service Disabled Service validates incoming tokens and cookies. Adobe Acrobat Updater keeps your Adobe Adobe Acrobat Update Service Automatic software up to date. Sends logging messages to the logging database when logging is enabled for the Active Directory Rights Management Services role. If this service is disabled or stopped AdRmsLoggingService Disabled when logging is enabled, logging messages will be stored in local message queues and sent to the logging database when the service is started. Processes application compatibility cache Application Experience Disabled requests for applications as they are launched Provides administrative services for IIS, for example configuration history and Application Pool account mapping. If this Application Host Helper Service Disabled service is stopped, configuration history and locking down files or directories with Application Pool specific Access Control Entries will not work. -
Software Extensibility and the System Object Model (SOM)
Software Extensibility and the System Object Model (SOM) WWDC Release May 1996 © Apple Computer, Inc. 1992–1996 Apple Computer, Inc. Balloon Help, Chicago, Finder, Some states do not allow the exclusion © 1992–1996 Apple Computer, Inc. Geneva, Mac, and QuickDraw are or limitation of implied warranties or All rights reserved. trademarks of Apple Computer, Inc. liability for incidental or consequential damages, so the above limitation or No part of this publication may be IBM is a registered trademark of exclusion may not apply to you. This reproduced, stored in a retrieval International Business Machines warranty gives you specific legal rights, system, or transmitted, in any form Corporation. and you may also have other rights or by any means, mechanical, MacPaint and MacWrite are which vary from state to state.. electronic, photocopying, recording, registered trademarks, and or otherwise, without prior written Clarisworks is a trademark, of Claris permission of Apple Computer, Inc., Corporation. except to make a backup copy of NuBus is a trademark of Texas any documentation provided on Instruments. CD-ROM. PowerPC is a trademark of The Apple logo is a trademark of International Business Machines Apple Computer, Inc. Corporation, used under license Use of the “keyboard” Apple logo therefrom. (Option-Shift-K) for commercial UNIX is a registered trademark of purposes without the prior written Novell, Inc. in the United States and consent of Apple may constitute other countries, licensed exclusively trademark infringement and unfair through X/Open Company, Ltd. competition in violation of federal and state laws. Simultaneously published in the No licenses, express or implied, are United States and Canada. -
Reflective Remote Method Invocation
Loyola University Chicago Loyola eCommons Computer Science: Faculty Publications and Other Works Faculty Publications 1998 Reflective Remote Method Invocation George K. Thiruvathukal Loyola University Chicago, [email protected] Lovely S. Thomas Andy T. Korczynski Follow this and additional works at: https://ecommons.luc.edu/cs_facpubs Part of the Programming Languages and Compilers Commons Recommended Citation G. Thiruvathukal, L. Thomas, and A. Korczynski, “Reflective Remote Method Invocation,” in ACM Java Grande, 1998. This Conference Proceeding is brought to you for free and open access by the Faculty Publications at Loyola eCommons. It has been accepted for inclusion in Computer Science: Faculty Publications and Other Works by an authorized administrator of Loyola eCommons. For more information, please contact [email protected]. This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License. Copyright © 1998 George K. Thiruvathukal, Lovely S. Thomas, and A. Korczynski Reflective Remote Method Invocation G. K. Thiruvathukal1 Tools of Computing LLC and Argonne National Laboratory Chicago, Illinois, U.S.A. L. S. Thomas2 Illinois Institute of Technology, Chicago, Illinois, U.S.A. A. T. Korczynski3 Illinois Institute of Technology, Chicago, Illinois, U.S.A. Abstract Remote Method Invocation (RMI) is available in the current Java language design and implementation, providing the much-needed capability of allowing objects running in different Java processes to collaborate using a variation on the popular Remote Procedure Call (RPC). Although RMI provides features which are desirable for high-performance distributed computing, its design and implementation are deficient in key areas of importance to the high-performance computing community in general. -
Proceedings of the Rexx Symposium for Developers and Users
SLAC-R-95-464 CONF-9505198-- PROCEEDINGS OF THE REXX SYMPOSIUM FOR DEVELOPERS AND USERS May 1-3,1995 Stanford, California Convened by STANFORD LINEAR ACCELERATOR CENTER STANFORD UNIVERSITY, STANFORD, CALIFORNIA 94309 Program Committee Cathie Dager of SLAC, Convener Forrest Garnett of IBM Pam Taylor of The Workstation Group James Weissman Prepared for the Department of Energy under Contract number DE-AC03-76SF00515 Printed in the United States of America. Available from the National Technical Information Service, U.S. Department of Commerce, 5285 Port Royal Road, Springfield, Virginia 22161. DISTRIBUTION OF THIS DOCUMENT IS UNLIMITED ;--. i*-„r> ->&• DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. DISCLAIMER Portions -
HP Openvms Utility Routines Manual
HP OpenVMS Utility Routines Manual Order Number: BA554-90019 June 2010 This manual describes the OpenVMS utility routines, a set of routines that provide a programming interface to various OpenVMS utilities. Revision/Update Information: This manual supersedes the HP OpenVMS Utility Routines Manual, OpenVMS Alpha Version 8.3. Software Version: OpenVMS Version 8.4 for Integrity servers OpenVMS Alpha Version 8.4 Hewlett-Packard Company Palo Alto, California © Copyright 2010 Hewlett-Packard Development Company, L.P. Confidential computer software. Valid license from HP required for possession, use or copying. Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under vendor’s standard commercial license. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Intel and Itanium are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries. ZK4493 The HP OpenVMS documentation set is available on CD. This document was prepared using DECdocument, Version 3.3-1B. Contents Preface ............................................................ xvii 1 Introduction to Utility Routines 2 Access Control List (ACL) Editor Routine 2.1 Introduction to the ACL Editor Routine ........................... ACL–1 2.2 Using the ACL Editor Routine: An Example ....................... ACL–1 2.3 ACL Editor Routine . ........................................ ACL–2 ACLEDIT$EDIT ........................................... -
Websphere Product Family: Overview and Architecture
Front cover WebSphere Product Family Overview and Architecture Discover the WebSphere family Take an in-depth look at key products Compare capabilities Carla Sadtler Gennaro Cuomo John Ganci Marc Haberkorn Carol Jones Peter Kovari Kevin Griffith Dildar Marhas Rob Will ibm.com/redbooks International Technical Support Organization WebSphere Product Family Overview and Architecture February 2005 SG24-6963-02 Note: Before using this information and the product it supports, read the information in “Notices” on page xv. Third Edition (February 2005) This edition applies to the WebSphere family. © Copyright International Business Machines Corporation 2004, 2005. All rights reserved. Note to U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents Notices . xv Trademarks . xvi Preface . xvii The team that wrote this redbook. xvii Become a published author . xix Comments welcome. xix Summary of changes . xxi February 2005, Third Edition . xxi Chapter 1. IBM WebSphere product overview . xxiii 1.1 WebSphere overview . xxiv 1.2 WebSphere family . xxv 1.3 IBM WebSphere Application Servers . xxvi 1.3.1 WebSphere Application Server V6 for distributed platforms . xxviii 1.3.2 WebSphere Application Server V5.1. xxxi 1.3.3 WebSphere Extended Deployment V5.1 . xxxiii 1.4 IBM software development platform . xxxv 1.4.1 Application development for WebSphere Application Server V6 . xxxvi 1.4.2 WebSphere Studio and Rational Developer . .xxxvii 1.5 IBM WebSphere Business Integration products . .xliii 1.5.1 Integration servers . xlv 1.5.2 Product overview. xlvi 1.5.3 WebSphere Business Integration Server Foundation . xlvi 1.5.4 WebSphere Business Integration Server .