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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/idxInterapplicationCommunication-date.html">Interapplication Communication</a> > <A HREF="javascript:location.replace('index.html');">Moriarity</A> >
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<h2>/TaskWrapper.h</h2>
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<p><strong>View Source Code:</strong>
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<p><strong><a href="Moriarity.zip">Download Sample</a></strong> (“Moriarity.zip”, 43.2K)<BR>
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<pre class="sourcecodebox">/* File: TaskWrapper.h Description: This class is a generalized process handling class that makes asynchronous interaction with an NSTask easier. There is also a protocol designed to work in conjunction with the TaskWrapper class; your process controller should conform to this protocol. TaskWrapper objects are one-shot (since NSTask is one-shot); if you need to run a task more than once, destroy/create new TaskWrapper objects. Author: EP & MCF Copyright: © Copyright 2002 Apple Computer, Inc. All rights reserved. Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. ("Apple") in consideration of your agreement to the following terms, and your use, installation, modification or redistribution of this Apple software constitutes acceptance of these terms. If you do not agree with these terms, please do not use, install, modify or redistribute this Apple software. In consideration of your agreement to abide by the following terms, and subject to these terms, Apple grants you a personal, non-exclusive license, under Apple's copyrights in this original Apple software (the "Apple Software"), to use, reproduce, modify and redistribute the Apple Software, with or without modifications, in source and/or binary forms; provided that if you redistribute the Apple Software in its entirety and without modifications, you must retain this notice and the following text and disclaimers in all such redistributions of the Apple Software. Neither the name, trademarks, service marks or logos of Apple Computer, Inc. may be used to endorse or promote products derived from the Apple Software without specific prior written permission from Apple. Except as expressly stated in this notice, no other rights or licenses, express or implied, are granted by Apple herein, including but not limited to any patent rights that may be infringed by your derivative works or by other works in which the Apple Software may be incorporated. The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS. IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */#import <Foundation/Foundation.h>@protocol TaskWrapperController// Your controller's implementation of this method will be called when output arrives from the NSTask.// Output will come from both stdout and stderr, per the TaskWrapper implementation.- (void)appendOutput:(NSString *)output;// This method is a callback which your controller can use to do other initialization when a process// is launched.- (void)processStarted;// This method is a callback which your controller can use to do other cleanup when a process// is halted.- (void)processFinished;@end@interface TaskWrapper : NSObject { NSTask *task; id <TaskWrapperController>controller; NSArray *arguments;}// This is the designated initializer - pass in your controller and any task arguments.// The first argument should be the path to the executable to launch with the NSTask.- (id)initWithController:(id <TaskWrapperController>)controller arguments:(NSArray *)args;// This method launches the process, setting up asynchronous feedback notifications.- (void) startProcess;// This method stops the process, stoping asynchronous feedback notifications.- (void) stopProcess;@end</pre>
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