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1 // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 #include "debug.h" |
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17 #include <e32base.h> |
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18 #include "COMMANDP.H" |
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19 #include "ABSTRACT.H" |
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20 #include "GLOBAL.H" |
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21 |
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22 CommandProcessor::CommandProcessor() |
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23 { |
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24 m_iCommands = 0; |
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25 m_iMaxCommands = 20; |
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26 for(TInt i=0;i<m_iMaxCommands;i++) |
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27 { |
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28 m_CommandQueue[i] = NULL; |
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29 } |
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30 } |
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31 |
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32 CommandProcessor::~CommandProcessor() |
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33 { |
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34 for(TInt i=0;i<m_iMaxCommands;i++) |
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35 { |
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36 //if(m_CommandQueue[i]!=NULL) |
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37 // { |
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38 delete m_CommandQueue[i]; // Get rid of old commands! |
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39 // } |
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40 } |
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41 } |
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42 |
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43 /* |
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44 * Method description: Called from SCEP with a new command to add into the outgoing queue |
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45 * |
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46 * Parameter: a_oCommand - pointer to a command to send |
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47 */ |
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48 |
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49 void CommandProcessor::Add(AbstractCommand* a_oCommand) |
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50 { |
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51 SCEPPRINT(_L("CommandProcessor: Add Command\n")); |
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52 |
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53 m_CommandQueue[m_iCommands++] = a_oCommand; |
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54 if(m_iCommands >= m_iMaxCommands) |
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55 { |
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56 m_iCommands = 0; // yeah, sorry. We do leak old stuff for now. |
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57 } |
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58 } |
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59 |
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60 /* |
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61 * Method description: Called from SCEP when the application "pumps" the module for incoming/outgoing data processing |
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62 * |
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63 */ |
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64 |
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65 void CommandProcessor::DoCommand() |
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66 { |
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67 if(m_CommandQueue[0] != NULL) |
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68 { |
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69 SCEPPRINT(_L("CommandProcessor: DoCommand\n")); |
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70 m_CommandQueue[0]->DoIt(); // we always execute the first command in the queue! |
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71 |
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72 delete m_CommandQueue[0]; |
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73 m_CommandQueue[0] = NULL; // well, it gets a new value below .. but anyway |
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74 ShiftQueue(); |
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75 } |
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76 } |
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77 |
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78 /* |
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79 * Method description: Private method called to shift new commands to the beginning of the queue |
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80 * |
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81 */ |
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82 |
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83 void CommandProcessor::ShiftQueue() |
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84 { |
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85 for(TInt i=1;i<m_iCommands;i++) |
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86 { |
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87 m_CommandQueue[i-1] = m_CommandQueue[i]; |
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88 } |
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89 m_CommandQueue[m_iCommands] = NULL; // obsolete pointer |
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90 m_iCommands--; |
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91 if(m_iCommands<0) // can this happen? |
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92 { |
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93 m_iCommands=0; |
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94 } |
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95 } |