File Navigation And Access

ð INSIDE MACINTOSH File Navigation and Access ð WWDC Release May 1996 © Apple Computer, Inc. 1992 - 1996 ð Apple Computer, Inc. © 1992–1996 Apple Computer, Inc. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, mechanical, electronic, photocopying, recording, or otherwise, without prior written permission of Apple Computer, Inc., except to make a backup copy of any documentation provided on CD-ROM. The Apple logo is a trademark of Apple Computer, Inc. Use of the “keyboard” Apple logo (Option-Shift-K) for commercial purposes without the prior written consent of Apple may constitute trademark infringement and unfair competition in violation of federal and state laws. No licenses, express or implied, are granted with respect to any of the technology described in this book. Apple retains all intellectual property rights associated with the technology described in this book. This book is intended to assist application developers to develop applications only for Apple-labeled or Apple-licensed computers. Every effort has been made to ensure that the information in this manual is accurate. Apple is not responsible for typographical errors. Apple Computer, Inc. 1 Infinite Loop Cupertino, CA 95014 408-996-1010 WARRANTY OR REPRESENTATION, EITHER EXPRESS OR IMPLIED, WITH RESPECT TO THIS MANUAL, ITS QUALITY, ACCURACY, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE. AS A RESULT, THIS MANUAL IS SOLD “AS IS,” AND YOU, THE PURCHASER, ARE ASSUMING THE ENTIRE RISK AS TO ITS QUALITY AND ACCURACY. IN NO EVENT WILL APPLE BE LIABLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY DEFECT OR INACCURACY IN THIS MANUAL, even if advised of the possibility of such damages. THE WARRANTY AND REMEDIES SET FORTH ABOVE ARE EXCLUSIVE AND IN LIEU OF ALL OTHERS, ORAL OR WRITTEN, EXPRESS OR IMPLIED. No Apple dealer, agent, or employee is authorized to make any modification, extension, or addition to this warranty. Some states do not allow the exclusion or limitation of implied warranties or liability for incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Apple, the Apple logo, and Macintosh are trademarks of Apple Computer, Inc., registered in the United States and other countries. UNIX is a trademark of UNIX System Laboratories, Inc. Simultaneously published in the United States and Canada. Even though Apple has reviewed this manual, APPLE MAKES NO Draft.  Apple Computer, Inc. 4/30/96 Contents Figures Chapter 1 vii File Navigation and Access Overview 1-1 The Mac OS 8 Files Environment 1-3 The Mac OS 8 File Manager 1-3 Speed 1-4 Reentrancy 1-4 Support for Volume-Format Plug-ins 1-4 Use of Notification Services 1-5 International String Support 1-5 Virtual Memory and Microkerne…