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annotate deps/Platinum/ThirdParty/Neptune/Source/Core/NptSimpleMessageQueue.cpp @ 0:3425707ddbf6

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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 - Simple Message Queue
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4 |
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5 | Copyright (c) 2002-2008, Axiomatic Systems, LLC.
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6 | All rights reserved.
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7 |
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8 | Redistribution and use in source and binary forms, with or without
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9 | modification, are permitted provided that the following conditions are met:
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10 | * Redistributions of source code must retain the above copyright
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11 | notice, this list of conditions and the following disclaimer.
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12 | * Redistributions in binary form must reproduce the above copyright
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13 | notice, this list of conditions and the following disclaimer in the
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14 | documentation and/or other materials provided with the distribution.
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15 | * Neither the name of Axiomatic Systems nor the
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16 | names of its contributors may be used to endorse or promote products
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17 | derived from this software without specific prior written permission.
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18 |
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19 | THIS SOFTWARE IS PROVIDED BY AXIOMATIC SYSTEMS ''AS IS'' AND ANY
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20 | EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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21 | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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22 | DISCLAIMED. IN NO EVENT SHALL AXIOMATIC SYSTEMS BE LIABLE FOR ANY
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23 | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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24 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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25 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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26 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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27 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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28 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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29 |
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30 ****************************************************************/
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31
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32 /*----------------------------------------------------------------------
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33 | includes
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34 +---------------------------------------------------------------------*/
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35 #include "NptSimpleMessageQueue.h"
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36 #include "NptDebug.h"
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37
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38 /*----------------------------------------------------------------------
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39 | NPT_SimpleMessageCapsule
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40 +---------------------------------------------------------------------*/
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41 struct NPT_SimpleMessageCapsule
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42 {
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43 NPT_SimpleMessageCapsule(NPT_Message* message,
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44 NPT_MessageHandler* handler) :
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45 m_Message(message), m_Handler(handler) {}
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46 NPT_Message* m_Message;
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47 NPT_MessageHandler* m_Handler;
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48 };
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49
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50 /*----------------------------------------------------------------------
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51 | NPT_SimpleMessageQueue::NPT_SimpleMessageQueue
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52 +---------------------------------------------------------------------*/
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53 NPT_SimpleMessageQueue::NPT_SimpleMessageQueue()
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54 {
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55 }
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56
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57 /*----------------------------------------------------------------------
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58 | NPT_SimpleMessageQueue::~NPT_SimpleMessageQueue
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59 +---------------------------------------------------------------------*/
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60 NPT_SimpleMessageQueue::~NPT_SimpleMessageQueue()
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61 {
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62 // empty the queue
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63 // TBD
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64 }
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65
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66 /*----------------------------------------------------------------------
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67 | NPT_SimpleMessageQueue::QueueMessage
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68 +---------------------------------------------------------------------*/
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69 NPT_Result
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70 NPT_SimpleMessageQueue::QueueMessage(NPT_Message* message,
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71 NPT_MessageHandler* handler)
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72 {
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73 // push the message on the queue, with the handler reference
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74 return m_Queue.Push(new NPT_SimpleMessageCapsule(message, handler));
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75 }
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76
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77 /*----------------------------------------------------------------------
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78 | NPT_SimpleMessageQueue::PumpMessage
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79 +---------------------------------------------------------------------*/
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80 NPT_Result
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81 NPT_SimpleMessageQueue::PumpMessage(NPT_Timeout timeout /* = NPT_TIMEOUT_INFINITE */)
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82 {
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83 NPT_SimpleMessageCapsule* capsule;
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84 NPT_Result result = m_Queue.Pop(capsule, timeout);
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85 if (NPT_SUCCEEDED(result) && capsule) {
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86 if (capsule->m_Handler && capsule->m_Message) {
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87 result = capsule->m_Handler->HandleMessage(capsule->m_Message);
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88 }
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89 delete capsule->m_Message;
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90 delete capsule;
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91 }
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92
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93 return result;
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94 }