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Apple's multiprocessing APIs provide support for both co-operatively scheduled tasks and preemptively scheduled tasks. The APIs allow applications to create symmetrically scheduled preemptive tasks that can be run on a single processor machine, and that take full advantage of multiple processors when they are installed.

Multiprocessing News and Information Improved Multiprocessing API 2.1 in Mac OS 9 Improved Thread Manager in Mac OS 9 Multiprocessing API The Multiprocessing API provides symmetrical real-time multitasking services that you can use to create tasks inside of your applications. This section provides links to web pages providing information about how to use the Multiprocessing API: Technote 1071, "Working with Apple's Multiprocessing API" Technotes describing some more obscure issues related to the Multiprocessing API. Multiprocessing SDK The software development kit for creating applications that use the Multiprocessing API. The SDK includes complete documentation for the Multiprocessing API. "Adding Multitasking Capability to Applications Using Multiprocessing Services" This document describes the Multiprocessing Services application programming interface through Multiprocessing Services 2.1. It contains conceptual information, programming examples, and a complete API reference. New features in version 2.1 include support for kernel notifications and gestalt selectors to determine the presence of preemptive task-safe system software functions. Click here for Multiprocessing sample code Multitasking Development Resources Apple tools, sample code, and documentation to help you with your multitasking projects. For general Mac OS resources, please see the Mac OS page. Apple Development Tools Learn more about Apple products for helping you develop excellent Mac OS software Developer Documentation Source for complete developer documentation Technical Notes Late-breaking docs for timely technology issues Technical Q&As Programming tips, code snippets, & FAQs by Apple's support engineers Sample Code An index of the DTS Sample Code FTP site Software Development Kits (SDKs) A listing of available Software Development Kits Software Licensing A listing of Apple Licensable Software Thread Manager The Thread Manager provides co-operative multitasking services allowing you to create a number of smaller tasks inside of an application. This section provides links to web pages providing information about how to use the Thread Manager: Thread Manager SDK The software development kit for creating applications that use the Thread Manager. The SDK includes complete documentation for the Thread Manager. Concurrent Programming With the Thread Manager A develop article discussing some of the more subtle issues related to using the Thread Manager. Process Manager The Process Manager provides co-operative multitasking services used for sharing the processor among applications. This section provides links to web pages providing information about how to use the Process Manager: Process Manager Documentation Complete documentation describing the Process Manager. The Process Manager Technote Collection A collection of technical notes that digress into some of the more complex issues related to using the Process Manager. The Process Manager Q&A Collection A number of short question and answer format items presented in answer to some of the more frequently asked questions about the Process Manager. Mailing Lists Public Mac OS mailing lists Mailing lists run by Apple & others, with topic descriptions and subscription information. Other Related Web Sites G4 with Velocity Engine Technology Information - Informational resources describing how to use the G4's Velocity Engine in your applications. Report Bugs Web forms to report bugs found in Apple software. Report Bugs Here Links to web forms for entering information to report problems found in Apple software

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