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1 // Copyright (c) 2007-2009 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 |
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17 #include <ssm/ssmcommandlist.h> |
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18 #include <ssm/ssmcmd.hrh> |
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19 |
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20 #include "ssmcommandlistutils.h" |
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21 #include <ssm/ssmcommand.h> |
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22 #include "ssmdebug.h" |
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23 #include "ssmpanic.h" |
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24 |
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25 |
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26 EXPORT_C TBool CSsmCommandListUtils::IsValidStateList(const CSsmCommandList& aCommandList) |
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27 { |
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28 // Validation 1: A command list used to transition to a system state must |
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29 // contain exactly one publish system state command |
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30 // and must not contain any publish swp commands |
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31 |
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32 //Validation 2:In a command list, if there are one or more commands with their |
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33 //execution behaviour as ESsmDeferredWaitForSignal that should be followed by a |
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34 //SSM_MULTIPLE_WAIT command |
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35 |
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36 |
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37 return IsValidList(aCommandList, ESsmCmdPublishSystemState) && ValidateDeferredWaitCommand(aCommandList); |
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38 } |
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39 |
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40 EXPORT_C TBool CSsmCommandListUtils::IsValidSwpList(const CSsmCommandList& aCommandList) |
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41 { |
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42 //Validation 1: A command list used to change the value of a swp must |
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43 // contain exactly one publish swp command |
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44 // and must not contain any publish system state commands |
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45 |
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46 //Validation 2:In a command list, if there are one or more commands with their |
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47 //execution behaviour as ESsmDeferredWaitForSignal that should be followed by a |
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48 //SSM_MULTIPLE_WAIT command |
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49 |
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50 return IsValidList(aCommandList, ESsmCmdPublishSwp) && ValidateDeferredWaitCommand(aCommandList); |
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51 } |
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52 |
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53 TBool CSsmCommandListUtils::IsValidList(const CSsmCommandList& aCommandList, TSsmCommandType aRequiredType) |
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54 { |
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55 TBool ret = EFalse; |
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56 TInt publishSystemStateCount = 0; |
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57 TInt publishSwpCount = 0; |
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58 const TInt KRequiredCount = 1; |
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59 |
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60 //From Commandlist fetch 1.) no. of publish system state command |
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61 //2.) no. of publish swp command |
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62 |
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63 aCommandList.GetDataToValidateCommandlist(publishSystemStateCount,publishSwpCount); |
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64 |
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65 if (aRequiredType == ESsmCmdPublishSystemState) //if commandlist has a Publish System State command |
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66 { |
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67 if (publishSwpCount != 0) //and a Publish SWP command also |
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68 { |
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69 DEBUGPRINT1A("PublishSwp command illegal in PublishSystemState command list"); |
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70 } |
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71 else if (publishSystemStateCount != KRequiredCount) //number of publish System State commands is not equal to 1 |
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72 { |
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73 DEBUGPRINT2A("Command list incorrectly contains %d PublishSystemState command ", publishSystemStateCount); |
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74 } |
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75 else |
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76 { |
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77 ret = ETrue; |
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78 } |
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79 } |
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80 else if (aRequiredType == ESsmCmdPublishSwp) //if commandlist has a Publish SWP command |
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81 { |
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82 if (publishSystemStateCount != 0) //and a Publish System state command also |
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83 { |
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84 DEBUGPRINT1A("PublishSystemState command illegal in PublishSwp command list"); |
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85 } |
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86 else if (publishSwpCount != KRequiredCount) //number of publish SWP commands is not equal to 1 |
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87 { |
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88 DEBUGPRINT2A("Command list incorrectly contains %d PublishSwp command ", publishSwpCount); |
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89 } |
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90 else |
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91 { |
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92 ret = ETrue; |
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93 } |
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94 } |
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95 |
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96 return ret; |
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97 } |
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98 |
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99 /** |
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100 This method runs through the command list from start to end checks for existence |
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101 of command with execution behaviour ESsmDeferredWaitForSignal |
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102 If one or more such commands found then it checks for ESsmCmdMultipleWait type command. |
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103 If ESsmCmdMultipleWait command not found corresponding to one or more ESsmDeferredWaitForSignal |
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104 returns EFalse. |
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105 */ |
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106 |
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107 TBool CSsmCommandListUtils::ValidateDeferredWaitCommand(const CSsmCommandList& aCommandList) |
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108 { |
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109 TBool ret = ETrue; |
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110 TBool deferredWaitFound = EFalse; |
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111 const TInt CommandsCount = aCommandList.Count(); |
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112 |
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113 TSsmCommandType commandType; |
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114 |
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115 for (TInt count = 0 ; count < CommandsCount ; count++) |
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116 { |
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117 if(deferredWaitFound) |
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118 { |
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119 commandType = aCommandList[count]->Type(); |
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120 if(commandType == ESsmCmdMultipleWait) |
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121 { |
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122 deferredWaitFound = EFalse; |
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123 } |
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124 } |
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125 if(aCommandList[count]->ExecutionBehaviour() == ESsmDeferredWaitForSignal) |
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126 { |
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127 deferredWaitFound = ETrue; |
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128 } |
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129 } |
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130 |
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131 if(deferredWaitFound) |
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132 { |
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133 DEBUGPRINT1A("Command list incorrectly contains deferredWaitSignal command and no later Multiple_Wait"); |
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134 ret = EFalse; |
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135 } |
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136 |
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137 return ret; |
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138 } |