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annotate deps/Platinum/ThirdParty/Neptune/Source/System/Cocoa/NptCocoaMessageQueue.mm @ 0:3425707ddbf6

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Initial import (hopefully this mercurial stuff works...)
author fraserofthenight
date Mon, 06 Jul 2009 08:06:28 -0700
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1 /*****************************************************************
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2 |
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3 | Neptune - Cocoa Message Queue
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4 |
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5 | (c) 2001-2008 Gilles Boccon-Gibod
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6 | Author: Gilles Boccon-Gibod (bok@bok.net)
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7 |
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8 ****************************************************************/
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9
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10 /*----------------------------------------------------------------------
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11 | includes
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12 +---------------------------------------------------------------------*/
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13 #include "NptCocoaMessageQueue.h"
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14 #include <Cocoa/Cocoa.h>
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15
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16 /*----------------------------------------------------------------------
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17 | NPT_CocoaMessageWrapper
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18 +---------------------------------------------------------------------*/
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19 @interface NPT_CocoaMessageCapsule : NSObject
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20 {
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21 NPT_Message* message;
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22 NPT_MessageHandler* handler;
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23 }
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24 -(id) initWithMessage: (NPT_Message*) message andHandler: (NPT_MessageHandler*) handler;
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25 -(void) handle;
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26 @end
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27
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28 @implementation NPT_CocoaMessageCapsule
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29 -(id) initWithMessage: (NPT_Message*) aMessage andHandler: (NPT_MessageHandler*) aHandler
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30 {
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31 if ((self = [super init])) {
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32 message = aMessage;
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33 handler = aHandler;
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34 }
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35 return self;
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36 }
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37
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38 -(void) dealloc
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39 {
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40 [super dealloc];
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41 delete message;
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42 }
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43
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44 -(void) handle
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45 {
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46 if (handler && message) {
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47 handler->HandleMessage(message);
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48 }
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49 }
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50 @end
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51
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52 /*----------------------------------------------------------------------
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53 | NPT_CocoaMessageQueue::NPT_CocoaMessageQueue
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54 +---------------------------------------------------------------------*/
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55 NPT_CocoaMessageQueue::NPT_CocoaMessageQueue()
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56 {
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57 }
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58
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59 /*----------------------------------------------------------------------
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60 | NPT_CocoaMessageQueue::~NPT_CocoaMessageQueue
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61 +---------------------------------------------------------------------*/
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62 NPT_CocoaMessageQueue::~NPT_CocoaMessageQueue()
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63 {
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64 }
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65
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66 /*----------------------------------------------------------------------
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67 | NPT_CocoaMessageQueue::PumpMessage
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68 +---------------------------------------------------------------------*/
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69 NPT_Result
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70 NPT_CocoaMessageQueue::PumpMessage(NPT_Timeout)
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71 {
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72 // you cannot pump messages on this type of queue, since they will
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73 // be pumped by the main application message loop
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74 return NPT_ERROR_NOT_SUPPORTED;
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75 }
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76
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77 /*----------------------------------------------------------------------
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78 | NPT_CocoaMessageQueue::QueueMessage
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79 +---------------------------------------------------------------------*/
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80 NPT_Result
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81 NPT_CocoaMessageQueue::QueueMessage(NPT_Message* message,
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82 NPT_MessageHandler* handler)
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83 {
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84 // create a capsule to represent the message and handler
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85 NPT_CocoaMessageCapsule* capsule = [NPT_CocoaMessageCapsule alloc];
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86 [capsule initWithMessage: message andHandler: handler];
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87
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88 // trigger the handling of the message on the main thread
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89 [capsule performSelectorOnMainThread: @selector(handle)
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90 withObject: nil
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91 waitUntilDone: FALSE];
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92
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93 // we no longer hold a reference to the capsule (it will be released
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94 // by the receiving thread)
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95 [capsule release];
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96
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97 return NPT_SUCCESS;
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98 }