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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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<a href="http://developer.apple.com/">ADC Home</a> > <a href="../../referencelibrary/index.html">Reference Library</a> > <a href="../../samplecode/index.html">Sample Code</a> > <a href="../../samplecode/Cocoa/index.html">Cocoa</a> > <a href="../../samplecode/Cocoa/idxProcessManagement-date.html">Process Management</a> > <A HREF="javascript:location.replace('index.html');">TrivialThreads</A> >
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<h2>/Controller.h</h2>
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<p><strong><a href="TrivialThreads.zip">Download Sample</a></strong> (“TrivialThreads.zip”, 55.3K)<BR>
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<pre class="sourcecodebox">/* File: Controller.h Contains: Central control object for sample. Written by: Quinn "The Eskimo!" Created: Tue 10-Jun-1997 Copyright: (c)1997 by Apple Computer, Inc., all rights reserved. Change History (most recent first): You may incorporate this sample code into your applications without restriction, though the sample code has been provided "AS IS" and the responsibility for its operation is 100% yours. However, what you are not permitted to do is to redistribute the source as "DSC Sample Code" after having made changes. If you're going to re-distribute the source, we require that you make it clear in the source that the code was descended from Apple Sample Code, but that you've made changes.*/#import <AppKit/AppKit.h>// IMPORTANT: See the documentation ("ReadMe.rtf" under Supporting Files) for// big picture information about this project.@class TransferServer;@interface Controller : NSObject{ // Interface Builder connections. id mainWindow; id textField; id infoPanel; // Set up in our init method. NSConnection *connectionToTransferServer; // The connection to transferServer. TransferServer *transferServer; // The transfer server itself, well actually a proxy for it. // You can tell the server to perform commands simply by // invoking methods on this object.}- (id)init; // Creates an NSConnection and starts a thread in which to run // the server. The server thread creates a remote server object // and then calls back our setServer method to let us know about it.- (void)setServer:(id)serverObject; // The server calls this routine to let us know about the remote // object it has created for us. We store this object in our // instance variables so that we can send messages to the remote // server via a simple method call. [Actually serverObject is // not the real object, but a proxy that Distributed Objects has // created for us when the server invoked our setServer method. // But the rest of this program doesn't care about that.]- (oneway void)outputString:(NSString *)theString; // Appends theString to the output text field. This routine is // callable both by the controller object running in the main // thread, and by the server object running in a secondary thread. // The "oneway" type qualifier informs the Distributed Object // system that it does not have to wait for this message to be // delivered before letting the sender continue running. This // is a sensible thing to do for things like updating progress // information, because you don't want your threaded operation // to stop and wait to synchronise with the main thread just so // that you can confirm that the progress bar has been updated // correctly.// Interface Builder Actions- (void)doSomethingSlow:(id)sender; // Called when the "Something Slow" button is clicked. // It requests the transferServer object to do something // slow.- (void)doSomethingSlower:(id)sender; // Called when the "Something Slower" button is clicked. // It requests the transferServer object to do something // even slower than something slow.- (void)showAboutPanel: (id) sender;@end</pre>
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